Kontron COM-HPC User manual


USER GUIDE
www.kontron.com // 1
COM-HPC Server Evaluation Carrier
Rev. 1.0
Doc. ID: 1070-0148

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
COM-HPC SERVER EVALUATION CARRIER USER GUIDE
Disclaimer
Kontron would like to point out that the information contained in this user guide may be subject to alteration,
particularly asa result ofthe constant upgradingof Kontron products. Thisdocument doesnotentail anyguarantee on
the part of Kontron with respect to technical processes described in the user guide or any product characteristics set
out in the user guide. Kontron assumes no responsibility or liability for the use of the described product(s), conveys no
license or title under any patent, copyright or mask work rights to these products and makes no representations or
warranties that these products are free from patent, copyright or mask work right infringement unless otherwise
specified. Applications that are described in this user guide are for illustration purposes only. Kontron makes no
representation or warranty that such application will be suitable for the specified use without further testing or
modification. Kontron expressly informs the user that this user guide only contains a general description of processes
and instructions which may not be applicable in every individual case. In cases of doubt, please contact Kontron.
This user guide is protected by copyright. All rights are reserved by Kontron. No part of this document may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer
language, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the
express written permission of Kontron. Kontron points out that the information contained in this user guide is
constantly beingupdated inlinewith thetechnicalalterationsand improvementsmade by Kontron to the products and
thus this user guide only reflects the technical status of the products by Kontron at the time of publishing.
Brand and product names are trademarks or registered trademarks of their respective owners.
©2023 by Kontron Europe GmbH
Kontron Europe GmbH
Gutenbergstraße 2
85737 Ismaning
Germany
www.kontron.com

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Intended Use
THIS DEVICE AND ASSOCIATED SOFTWARE ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR RESALE
FOR THE OPERATION OF NUCLEAR FACILITIES, THE NAVIGATION, CONTROL OR COMMUNICATION SYSTEMS FOR
AIRCRAFT OR OTHER TRANSPORTATION, AIR TRAFFIC CONTROL, LIFE SUPPORT OR LIFE SUSTAINING APPLICATIONS,
WEAPONS SYSTEMS, OR ANY OTHER APPLICATION IN A HAZARDOUS ENVIRONMENT, OR REQUIRING FAIL-SAFE
PERFORMANCE, OR IN WHICH THE FAILURE OF PRODUCTS COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR
SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE (COLLECTIVELY, HIGH RISK APPLICATIONS ).
You understand and agree that your use of Kontron devices as a component in High Risk Applications is entirely at
your risk. To minimize the risks associated with your products and applications, you should provide adequate design
and operating safeguards. You are solely responsible for compliance with all legal, regulatory, safety, and security
related requirements concerning your products. You are responsible to ensure that your systems (and any Kontron
hardware or software components incorporated in your systems) meet all applicable requirements. Unless otherwise
stated in the product documentation, the Kontron device is not provided with error-tolerance capabilities and cannot
therefore be deemed as being engineered, manufactured or setup to be compliant for implementation or for resale as
device in High Risk Applications. All application and safety related information in this document (including application
descriptions, suggested safety measures, suggested Kontronproducts, and other materials) is provided for reference
only.
Handling and operation of the product is permitted only for trained personnel within a work
place that is access controlled.
the system.
area of this product.
This product is not suited for storage or operation in corrosive environments, in particular
under exposure to sulfur and chlorine and their compounds. For information on how to
harden electronics and mechanics against thesestress conditions, contact Kontron Support.

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Revision History
Revision
Brief Description of Changes
Date of Issue
Author
1.0
Initial release
2023-August 11
IH
Terms and Conditions
Kontron warrants products in accordance with defined regional warranty periods. For more information about
warranty compliance and conformity, and the warranty period in your region, visit https://www.kontron.com/terms-
and-conditions.
KontronsellsproductsworldwideanddeclaresregionalGeneralTerms&ConditionsofSale,andPurchaseOrderTerms
& Conditions. Visit https://www.kontron.com/terms-and-conditions.
For contact information, refer to the corporate offices contact information on the last page of this user guide or visit
our website CONTACT US.
Customer Support
Find Kontron contacts by visiting: https://www.kontron.com/support-and-services.
Customer Service
As a trusted technology innovator and global solutions provider, Kontron extends its embedded market strengths into
a services portfolio allowing companies to break the barriers of traditional product lifecycles. Proven product
expertise coupled with collaborative and highly-experienced support enables Kontron to provide exceptional peace of
mind to build and maintain successful products.
training academy, and more visit https://www.kontron.com/support-and-services.
Customer Comments
If you have any difficultiesusing this user guide, discover anerror, or just want to providesome feedback, contact
Kontron support. Detail any errors you find. We will correct the errors or problems as soonas possible and post the
revised user guide on our website.

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Symbols
The following symbols may be used in this user guide
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
NOTICE indicates a property damage message.
CAUTION indicates a hazardous situation which, if not avoided,
may result in minor or moderate injury.
Electric Shock!
This symbol and title warn of hazards due to electrical shocks (> 60 V) when touching
products or parts of products. Failure to observe the precautions indicated and/or prescribed
by the law may endanger your life/health and/or result in damage to your material.
ESD Sensitive Device!
This symbol and title inform that the electronic boards and their components are sensitive to
static electricity. Care must therefore be taken during all handling operations and inspections
of this product in order to ensure product integrity at all times.
HOT Surface!
Do NOT touch! Allow to cool before servicing.
Laser!
This symbol inform of the risk of exposure to laser beam and light emitting devices (LEDs)
from an electrical device. Eye protection per manufacturer notice shall review before
servicing.
This symbol indicates general information about the product and the user guide.
This symbol also indicates detail information about the specific product configuration.
This symbol precedes helpful hints and tips fordaily use.

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For Your Safety
Your new Kontron product was developed and tested carefully to provide all features necessary to ensure its
compliance with electrical safety requirements. It was also designed for a long fault-free life. However, the life
expectancy of your product can be drastically reduced by improper treatment during unpackingand installation.
Therefore, in the interest of your own safety and of the correct operation of your new Kontron product, you are
requested to conform with the following guidelines.
High Voltage Safety Instructions
As a precaution and in case of danger, the power connector must be easily accessible. The power connector is the
Warning
All operations on this product must be carried out by sufficiently skilled personnel only.
Electric Shock!
Before installing a non hot-swappable Kontron product into a system always ensure that
your mains power is switched off. This also applies to the installation of piggybacks. Serious
electrical shock hazards can exist during all installation, repair, and maintenance operations
on this product. Therefore, always unplugthe power cable and any other cables which
provide external voltages before performing any work on this product.
Earth ground connection t or a central grounding point shall remain
connected. The earth ground cable shall be the last cable to be disconnected or the first cable
to be connected when performing installation or removal procedures on this product.
Special Handling and Unpacking Instruction
ESD Sensitive Device!
Electronic boards and their components are sensitive to static electricity. Therefore, care
must be taken during all handling operations and inspections of this product, in order to
ensure product integrity at all times.
Do not handle this product out of its protective enclosure while it is not used for operational purposes unless it is
otherwise protected.
Whenever possible, unpack or pack this product only at EOS/ESD safe work stations. Where a safe work station is not
guaranteed, it is important for the user to be electrically discharged before touching the product with his/her hands
or tools. This is most easily done by touching a metal part of your system housing.
It is particularly important to observe standard anti-static precautions when changing piggybacks, ROM devices,
jumper settings etc. If the product contains batteries for RTC or memory backup, ensure that the product is not placed
on conductive surfaces, including anti-static plastics or sponges. They can cause short circuits and damage the
batteries or conductive circuits on the product.

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Lithium Battery Precautions
If your product is equipped with a lithium battery, take the following precautions when replacing the battery.
Danger of explosion if the battery is replaced incorrectly.
Replace only with same or equivalent battery type recommended by the manufacturer.

General Instructions on Usage
modifications to the product, that are not explicitly approved by Kontron and described in this user guide or received
from Kontron Support as a special handling instruction, will void your warranty.
This product should only be installed in or connected to systems that fulfill all necessary technical and specific
environmental requirements. This also applies to the operational temperature range of the specific board version
that must not be exceeded. If batteries are present, their temperature restrictions must be taken into account.
In performing all necessary installation and application operations, only follow the instructions supplied by the
present user guide.
Keep all the original packaging material for future storage or warranty shipments. If it is necessary to store or ship
the product then re-pack it in the same manner as it was delivered.
Special care is necessary when handling or unpacking the product. See Special Handling and Unpacking Instruction.
Quality and Environmental Management
Kontron aims to deliver reliable high-end products designed and built for quality, and aims to complying with
environmental laws, regulations, and other environmentally oriented requirements. For more information regarding
responsibilities, visit https://www.kontron.com/about-kontron/corporate-
responsibility/quality-management.
Disposal and Recycling
components used are capable of being recycled. Final disposal of this product after its service life must be
accomplished in accordance with applicable country, state, or local laws or regulations.
WEEE Compliance
The Waste Electrical and Electronic Equipment (WEEE) Directive aims to:
Reduce waste arising from electrical and electronic equipment (EEE)
Make producers of EEE responsible for the environmental impact of their products, especially when the product
become waste
Encourage separate collection and subsequent treatment, reuse, recovery, recyclingand sound environmental
disposal of EEE
Improve the environmental performance of all those involved during the lifecycle of EEE
Environmental protection is a high priority with Kontron.
Kontron follows the WEEE directive
You are encouraged to returnour products for properdisposal.

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Table of Contents
Symbols..........................................................................................................................................................................................6
For Your Safety............................................................................................................................................................................. 7
High Voltage Safety Instructions ............................................................................................................................................. 7
Special Handling and Unpacking Instruction ........................................................................................................................ 7
Lithium Battery Precautions .....................................................................................................................................................8
General Instructions on Usage .................................................................................................................................................8
Quality and Environmental Management ..............................................................................................................................8
Disposal and Recycling...............................................................................................................................................................8
WEEE Compliance........................................................................................................................................................................8
Table of Contents ........................................................................................................................................................................9
List of Tables .............................................................................................................................................................................. 10
List of Figures..............................................................................................................................................................................11
1/ Introduction.....................................................................................................................................................................13
Product Description .............................................................................................................................................................13
Product Naming Clarification........................................................................................................................................... 14
2/ System specifications ...................................................................................................................................................15
Main Features.......................................................................................................................................................................15
Environmental Conditions.................................................................................................................................................15
Block Diagram......................................................................................................................................................................16
3/ Mainboard Views............................................................................................................................................................17
Top View.................................................................................................................................................................................17
Front panel .......................................................................................................................................................................... 18
4/ Mechanical Specification..............................................................................................................................................19
Dimensions and Jumper Positions...................................................................................................................................19
5/ Interfaces and Connectors..........................................................................................................................................20
IO Backpanel Board Connector (X4) ...............................................................................................................................20
Up to 10 GB Ethernet Connector (X31)............................................................................................................................21
USB 3.2 Double Connector (X32, X33) ............................................................................................................................21
COM Ports (X35) .................................................................................................................................................................22
BMC Connector (X36) ........................................................................................................................................................24
SATA 6 GB (X18, X19)..........................................................................................................................................................28
PCIe Slots (X7 X13) ..........................................................................................................................................................28
Fan Connector (X14) and Jumper (X38) ........................................................................................................................29
5.8.1. Fan Connector with 4 Pins (X14)..................................................................................................................................29
5.8.2. Jumper for 5V/12V Fan Selection (X38).....................................................................................................................30
UART0 BMC Present Header (X15)..................................................................................................................................30
UART VCC Selection Jumpers (X58, X59) .................................................................................................................30
UART5 Header (X16)...........................................................................................................................................................31
FW SPI Flash Socket for BMC (X17)...............................................................................................................................32
BIOS Flash Socket (X28)..................................................................................................................................................32
BIOS Select Jumper (X37)................................................................................................................................................32
2x4 SFP28 Cage (X29)......................................................................................................................................................33
GPIO - General Purpose Input and Output (X6) .........................................................................................................33
Miscellaneous Header (X40)..........................................................................................................................................34
GP_SPI Header (X46) .......................................................................................................................................................35
SUS_S3# / PS_ON Jumper (X39)...................................................................................................................................35
Enable 5V_SBY_HPC Jumper (X47)..............................................................................................................................35

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Enable VCC_HPC Jumper (X48)......................................................................................................................................36
I2C0 Header (X50)............................................................................................................................................................36
I2C1 Header (X53).............................................................................................................................................................36
SMBus Header (X49).......................................................................................................................................................37
SDP Header (X51)..............................................................................................................................................................37
COM-HPC PICMG EEPROM Header (X52).....................................................................................................................38
Parade I2C Debug Board Header (X55)........................................................................................................................38
USB_PD_I2C Header (X57) .............................................................................................................................................38
ATX Main Power Connector (X26)................................................................................................................................39
ATX Power Connector (X27) ..........................................................................................................................................39
RTC Battery Socket (X45)................................................................................................................................................40
Button Switches (S1 S5)..............................................................................................................................................40
M.2 Key-M Socket (X30, X34)........................................................................................................................................ 41
6/ Electrical Specification.................................................................................................................................................43
Power Supply Rise time.....................................................................................................................................................43
Supply Voltage Tolerances..............................................................................................................................................43
7/ Features...........................................................................................................................................................................45
Rapid Shutdown Button (SW5) ........................................................................................................................................45
LEDs and Indicators ...........................................................................................................................................................45
7.2.1. Power and Control LEDs.................................................................................................................................................45
7.2.2. SFP28 LEDs.......................................................................................................................................................................46
7.2.3. Port 80 BIOS Debug Code Display ...............................................................................................................................46
8/ COM-HPC Connector Pin-out List..............................................................................................................................47
9/ Technical Support .........................................................................................................................................................53
Warranty...............................................................................................................................................................................53
Returning Defective Merchandise..................................................................................................................................53
10/ List of Acronyms............................................................................................................................................................55
About Kontron ............................................................................................................................................................................56
List of Tables
Table 1: Main Features....................................................................................................................................................................................15
Table 2: Environmental Conditions ............................................................................................................................................................15
Table 3: IO Backpanel Board Connector...................................................................................................................................................20
Table 4: Max 10 GB Ethernet Connector ...................................................................................................................................................21
Table 5: Signals.................................................................................................................................................................................................21
Table 6: USB 3.2 Double Connector Pinout (X32, X33).........................................................................................................................21
Table 7: Double COM Ports...........................................................................................................................................................................22
Table 8: BMC Connector (X36)....................................................................................................................................................................24
Table 9: SATA 6 GB Connector.....................................................................................................................................................................28
Table 10: PCIe Slots.........................................................................................................................................................................................28
Table 11: Fan Connector (X14)......................................................................................................................................................................29
Table 12: Jumper for 5V/12V Fan Selection.............................................................................................................................................30
Table 13: BMC Present Jumper (X15).........................................................................................................................................................30
Table 14: VCC Selection Jumpers (X58, X59)...........................................................................................................................................30
Table 15: UART5 Header (X16) ......................................................................................................................................................................31
Table 16: SPI Flash Socket for BMC............................................................................................................................................................32
Table 17: BIOS Flash Socket (X28)..............................................................................................................................................................32
Table 18: BIOS Select Jumper (X37)...........................................................................................................................................................32
Table 19: GPIO Header (X6)...........................................................................................................................................................................33
Table 20: Miscellaneous Header (X40)....................................................................................................................................................34

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Table 21: GP_SPI Header (X46)....................................................................................................................................................................35
Table 22: SUS_S3# / PS_ON Jumper (X39).............................................................................................................................................35
Table 23: Enable 5V_SBY_HPC Jumper (X47).........................................................................................................................................35
Table 24: Enable VCC_HPC Jumper (X48)................................................................................................................................................36
Table 25: I2C0 Header (X50) ........................................................................................................................................................................36
Table 26: I2C1 Header (X53) .........................................................................................................................................................................36
Table 27: SMBus Header (X49)................................................................................................................................................................... 37
Table 28: SDP Header (X51).......................................................................................................................................................................... 37
Table 29: SDP Header (X52).........................................................................................................................................................................38
Table 30: Parade I2C Debug Board Header (X55)..................................................................................................................................38
Table 31: USB_PD_I2C Header (X57).........................................................................................................................................................38
Table 32: ATX Main Power Connector with 24 pins (X26).................................................................................................................39
Table 33: ATX Power connector with 8 pins (X27)...............................................................................................................................39
Table 34: RTC Socket......................................................................................................................................................................................40
Table 35: Control Buttons.............................................................................................................................................................................40
Table 36: Pin Assignment M.2 Connector.................................................................................................................................................41
Table 37: Power and Control LEDs.............................................................................................................................................................45
Table 38: FP28 LEDs.......................................................................................................................................................................................46
Table 39: Pin-out List Connector J1............................................................................................................................................................47
Table 40: Pin-out List Connector J2 ..........................................................................................................................................................49
List of Figures
Figure 1: COM-HPC Server Evaluation Carrier.........................................................................................................................................13
Figure 2: Block Diagram COM-HPC Server Evaluation Carrier...........................................................................................................16
Figure 3: Top View of COM-HPC Server Evaluation Carrier................................................................................................................17
Figure 4: Front Panel.......................................................................................................................................................................................18
Figure 5: Board Dimensions and Jumper Positions...............................................................................................................................19
Figure 6: IO Backpanel Board Connector.................................................................................................................................................20
Figure 7: USB 3.2 Double Connector (X32, X33)......................................................................................................................................21
Figure 8: Double COM Ports.........................................................................................................................................................................22
Figure 9: BMC Connector (X36)...................................................................................................................................................................24
Figure 10: SATA 6 GB.......................................................................................................................................................................................28
Figure 11: PCIe x4 Slots...................................................................................................................................................................................29
Figure 12: PCIe x16 and PCIe x8 Slots ........................................................................................................................................................29
Figure 13: Fan Connector with 4 pins (X14) and Fan Jumper (X38).................................................................................................29
Figure 14: BMC Present Jumper (X15) with 3 pins.................................................................................................................................30
Figure 15: UART VCC Selection Jumpers (X58, X59) with 3 pins ...................................................................................................30
Figure 16: UART5 Header (X16).....................................................................................................................................................................31
Figure 17: SPI Flash Socket for BMC...........................................................................................................................................................32
Figure 19: BIOS Flash Socket (X28)............................................................................................................................................................32
Figure 20: BIOS Select Jumper (X37).........................................................................................................................................................32
Figure 21: Side View of 2x4 SFP28 Cage (X29).......................................................................................................................................33
Figure 22: 2x4 SFP28 Cage (X29) - Block Diagram (Detail)...............................................................................................................33
Figure 23: GPIO Header (X6).........................................................................................................................................................................33
Figure 24: Miscellaneous Header (X40) .................................................................................................................................................34
Figure 25: GP_SPI Header (X46) ................................................................................................................................................................35
Figure 26: SUS_S3# / PS_ON Jumper (X39)...........................................................................................................................................35
Figure 27: Enable 5V_SBY_HPC Jumper (X47) .......................................................................................................................................35
Figure 28: Enable VCC_HPC Jumper (X48)..............................................................................................................................................36
Figure 29: I2C0 Header, 4-pin (X50)..........................................................................................................................................................36
Figure 30: I2C1 Header, 3-pin (X53)...........................................................................................................................................................36
Figure 31: SMBus Header (X49) .................................................................................................................................................................. 37
Figure 32: SDP Header (X51)......................................................................................................................................................................... 37
Figure 33: COM-HPC PICMG EEPROM Header (X52).............................................................................................................................38
Figure 34: Parade I2C Debug Board Header (X55)................................................................................................................................38

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Figure 35: USB_PD_I2C Header (X57).......................................................................................................................................................38
Figure 36: ATX Main Power Connector (X26).........................................................................................................................................39
Figure 37: ATX Power connector with 8 pins (X27)..............................................................................................................................39
Figure 38: RTC Battery Socket.....................................................................................................................................................................40
Figure 39: Button Switches..........................................................................................................................................................................40
Figure 40: M.2 Slot Connector (X30, X34)................................................................................................................................................41
Figure 41: Power Diagram.............................................................................................................................................................................44
Figure 42: SFP28 LEDs...................................................................................................................................................................................46
Figure 43: Port 80 BIOS Debug Code 7-Segment Display ..................................................................................................................46
Figure 44: COM-HPC Connector J1and J2................................................................................................................................................47

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1/ Introduction
Product Description
COM-HPC Server Evaluation Carrier is an evaluation, testing and validation carrier board (baseboard) for COM-
HPC®/Server modules in E-ATX form factor. Main purpose of this carrier board is to bring out all the signals from the
COM-HPC® connector of COM-HPC/Server modules to industry standard interfaces. The key features are:
Support of 64 PCIe lanes via various PCIe and M.2 slots
8x SFP28 cages
1x RJ45 up to 10GBASE-T
4x USB 3.2 Gen2.1
2x SATA
Slot for an optional BMC Card
BIOS POST-Code display
Figure 1: COM-HPC Server Evaluation Carrier

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Product Naming Clarification
COM-HPC® defines a Computer-on-Module, or COM, with allthe components necessary for a bootable host computer,
packaged as a super component. The product name for Kontron COM-HPC® Computer-On-Modules consists of:
Industry standard short form:
COMh-
Two different pin-out types:
c = client
s = server
Module form factor:
a = 95 mm x 120 mm
b = 120 mm x 120 mm
c = 160 mm x 120 mm
d = 160 mm x 160 mm
e = 200 mm x 160 mm
The COM-HPC Server Evaluation Carrier supports server modules in size D and E.

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2/System specifications
Main Features
The table below summarizes the features of the evaluation carrier.
Table 1: Main Features
COM-HPC Server Evaluation Carrier
Dimensions
305 mm x 330 mm (E-ATX)
Ethernet
1x RJ45 max. 10GBASE-T, 8x SFP28 cages via 2x Intel PHY C827-IM
PCI Express®
2x PCIe Gen4 x4 to 2x PCIe card slots (PCIe Lane Group 0 Low)
2x PCIe Gen3 x4 to 2x M.2 2242/2280 slots (PCIe Lane Group 0 High)
1x PCIe Gen4 x16 slot (PCIe Lane Group 1)
4x PCIe Gen4 x8 to 4x PCIe card slots (PCIe Lane Group 2 and 3)
USB
4x USB 3.2 Gen 2x1
Serial
2x DSUB9 - COM ports (RX/TX)
BMC
1x Slot for optional BMC card
Visual Control
BIOS Post-Code
2x 7-segment display,
Various LEDs
Onboard Header
2x SATA, 1x I2C, 1x eSPI, 1x SMBus, 1x GPIO, 1x Fan, 1x Feature Connector
Various
BIOS flash-socket, Battery holder
Power Supply
ATX power supply 24 + 8 pin
Danger of explosion if the lithium battery is replaced incorrectly.
Replace only with the same or equivalent type recommended by the manufacturer

Environmental Conditions
Table 2: Environmental Conditions
Operating
-0°C to +60°C
Some connectors and supercap has operating temperature only 0°C to +70°C, relative
humidity (non-condensing) 10 % to 93 % at 40°C
Storage
-30°C to +85°C
relative humidity (non-condensing) 10 % to 93 % at 40°C
Theoretical MTBF
not applicable
Compliance
CE/UKCA, RoHS II, WEEE

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Block Diagram
Figure 2: Block Diagram COM-HPC Server Evaluation Carrier

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3/Mainboard Views
Top View
Figure 3: Top View of COM-HPC Server Evaluation Carrier
37
4
36
34
35
6
5
32
27
24
21
12
11
13
14
15
26
3
7
8
9
10
2
1
33
28
29
30
25
20
23
22
16
18
19
17
31

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1. USB_PD_I2C Header (X57)
2. BIOS POST Code Display
3. Parade I2C Debug Board Connector (X55)
4. 5x Button Switches
5. Miscellaneous Header (X40)
6. GPIO Header (X6)
7. GP_SPI Header (X46)
8. eSPI Header (X22, not placed)
9. SMBus Header (X49)
10. I2C0 Header (X50)
11. 2x PCIe x8 (X10, X11)
12. PCIe x16 (X9)
13. 2x PCIe x8 (X7, X8)
14. 2x PCIe x4 (X12, X13)
15. ATX Peripheral Connectors (X43, X44)
16. BMC Connector (X36)
17. 3x Jumpers: BMC Present (X15), UART0 VCC
Selection (X59), UART1 VCC Selection (X58)
18. SPI Flash Socket (X17)
19. UART5 Pinheader (X16)
20. IO Backpanel Board Connector (X4)
21. 2x M.2 (X30, X34)
22. COM-HPC PICMG EEPROM (X52)
23. BIOS Select Jumper (X37)
24. ATX +12V Power Connector 8 Pin (X27)
25. Enable VCC_HPC Jumper (X48)
26. BIOS Flash Socket (X28)
27. ATX Main Power Connector 24 pins (X26)
28. 5V_Standby_HPC Jumper (X47)
29. Manual PS_ON or by SUS_S3,Jumper (X39)
30. I2C1 Header (X53)
31. Status LEDs and Power LEDs
32. 2x COM-HPC Connectors (J1, J2)
33. SDP Header (X51)
34. Fan Connector (X14)
35. 5V/12V Fan Jumper (X38)
36. RTC Battery CR2032 Socket (X45)
37. 2x SATA Header (X18, X19
Front panel
Figure 4: Front Panel
38. 8x SFP28 cages (X29)
39. 1x RJ45 (X31)
40. 4x USB (X32, X33)
41. 2x COM (X35)
40
37
39
38

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4/Mechanical Specification
Dimensions and Jumper Positions
The dimensions of the carrier board are 330 mm x 305 mm.
Figure 5: Board Dimensions and Jumper Positions

COM-HPC Server Evaluation Carrier - Rev. 1.0
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5/ Interfaces and Connectors
IO Backpanel Board Connector (X4)
Figure 6: IO Backpanel Board Connector
Table 3: IO Backpanel Board Connector
Signal Name
Pin
Pin
Signal Name
+5VDC
1
21
+5VDC
+5VDC
2
22
+5VDC
GND
3
23
GND
GND
4
24
BMC_DACG_DPTXP0
BMC_VGAHS_DPTXP1
5
25
BMC_DACB_DPTXN0
BMC_VGAVS_DPTXN1
6
26
GND
GND
7
27
BMC_DDCCLK_DPAUXP
GND
8
28
BMC_DDCDAT_DPAUXN
GND
9
29
GND
BMC_DACR_DPHPD
10
30
BMC_PHYLED1
BMC_PHYLED2
11
31
BMC_PHYLED3
GND
12
32
GND
+3.3VSB
13
33
+3.3VSB
+3.3VSB
14
34
+3.3VSB
GND
15
35
GND
BMC_TRD3
16
36
BMC_TRD2N
BMC_TRD3P
17
37
BMC_TRD2P
GND
18
38
GND
BMC_TRD1N
19
39
BMC_TRD0N
BMC_TRD1P
20
40
BMC_TRD0P
NC
M1
M3
NC
NC
M2
M4
NC