ADLINK Technology COM-HPC User manual

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 1
COM-HPC Server Base
Revision: Rev. 1.0
Date: 2023-07-12
Part Number: 50M-77106-1000
User’s Guide

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 2 Copyright © 2023 ADLINK Technology, Inc.
Revision History
Revision
Description
Date
Author
1.0Initial release 2023-07-20
CC

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 3 Copyright © 2023 ADLINK Technology, Inc.
Preface
Disclaimer
Information in this document is provided in connection with ADLINK products. No license, express or implied, by estoppel or otherwise, to any
intellectual property rights is granted by this document. Except as provided in ADLINK´s Terms and Conditions of Sale for such products, ADLINK
assumes no liability whatsoever, and ADLINK disclaims any express or implied warranty, relating to sale and/or use of ADLINK products including
liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property
right. If you intend to use ADLINK products in or as medical devices, you are solely responsible for all required regulatory compliance, including, without
limitation, Title 21 of the CFR (US), Directive 2007/47/EC (EU), and ISO 13485 & 14971, if any. ADLINK may make changes to specifications and product
descriptions at any time, without notice.
Environmental Responsibility
ADLINK is committed to fulfil its social responsibility to global environmental preservation through compliance with the European Union's Restriction of
Hazardous Substances (RoHS) directive and Waste Electrical and Electronic Equipment (WEEE) directive. Environmental protection is a top priority for
ADLINK. We have enforced measures to ensure that our products, manufacturing processes, components, and raw materials have as little impact on the
environment as possible. When products are at their end of life, our customers are encouraged to dispose of them in accordance with the product
disposal and/or recovery programs prescribed by their nation or company.
California Proposition 65 Warning: This product can expose you to chemicals including acrylamide, arsenic, benzene, cadmium, Tris(1,3-
dichloro-2-propyl)phosphate (TDCPP), 1,4-Dioxane, formaldehyde, lead, DEHP, styrene, DINP, BBP, PVC, and vinyl materials, which are known
to the State of California to cause cancer, and acrylamide, benzene, cadmium, lead, mercury, phthalates, toluene, DEHP, DIDP, DnHP, DBP,
BBP, PVC, and vinyl materials, which are known to the State of California to cause birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov.
Trademarks
Product names mentioned herein are used for identification purposes only and may be trademarks / registered trademarks of respective companies.
Copyright © 2023 ADLINK Technology Incorporated
This document contains proprietary information protected by copyright. All rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic, or other means in any form without prior written permission of the manufacturer.

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 4 Copyright © 2023 ADLINK Technology, Inc.
Safety Instructions
For user safety, please read and follow all Instructions, WARNINGs, CAUTIONs, and NOTEs marked in this manual and on the associated equipment
before handling/operating the equipment.
Read these safety instructions carefully.
•Keep this manual for future reference.
•Read the specifications section of this manual for detailed information on the operating environment of this equipment.
•Turn off power and unplug any power cords/cables when installing/mounting or un-installing/removing equipment.
•To avoid electrical shock and/or damage to equipment:
•Keep equipment away from water or liquid sources;
•Keep equipment away from high heat or high humidity;
•Keep equipment properly ventilated (do not block or cover ventilation openings);
•Make sure to use recommended voltage and power source settings;
•Always install and operate equipment near an easily accessible electrical socket outlet;
•Secure the power cord (do not place any object on/over the power cord);
•Only install/attach and operate equipment on stable surfaces and/or recommended mountings;
•If the equipment will not be used for long periods of time, turn off the power source and unplug the equipment.

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 5 Copyright © 2023 ADLINK Technology, Inc.
Conventions
The following conventions may be used throughout this manual, denoting special levels of information
Note: This information adds clarity or specifics to text and illustrations.
Caution: This information indicates the possibility of minor physical injury, component damage, data loss, and/or program corruption.
Warning: This information warns of possible serious physical injury, component damage, data loss, and/or program corruption.

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 6 Copyright © 2023 ADLINK Technology, Inc.
Getting Service
Ask an Expert: https://www.adlinktech.com/en/Askanexpert
ADLINK Technology, Inc.
No. 66, Huaya 1st Rd., Guishan District, Taoyuan City 333411, Taiwan
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Ampro ADLINK Technology, Inc.
6450 Via Del Oro, San Jose, CA 95119-1208, USA
Tel: [phone]
Toll Free: [phone] (USA only)
Fax: [phone]
Email: [e-mail]
ADLINK Technology (China) Co., Ltd.
300 Fang Chun Rd., Zhangjiang Hi-Tech Park, Pudong New Area, Shanghai, 201203, China
Tel: [phone]
Fax: [phone]
Email: [e-mail]
ADLINK Technology GmbH
Hans-Thoma-Strasse 11, D-68163 Mannheim, Germany
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Please visit the Contact page at www.adlinktech.com for information on how to contact the ADLINK regional office nearest you.

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 7 Copyright © 2023 ADLINK Technology, Inc.
Table of Contents
Revision History ................................................................................................................................................................................................................................................................................................................ 2
Preface .................................................................................................................................................................................................................................................................................................................................. 3
1. Introduction ...............................................................................................................................................................................................................................................................................................................10
2. Special Features........................................................................................................................................................................................................................................................................................................11
2.1. Three PCI Express x16.................................................................................................................................................................................................................................................................................................................11
2.2. Out-of-Band Management.......................................................................................................................................................................................................................................................................................................12
2.3. High Speed Ethernet Expansion.............................................................................................................................................................................................................................................................................................13
3. Component Location..............................................................................................................................................................................................................................................................................................14
4. Functional Diagram.................................................................................................................................................................................................................................................................................................15
5. Mechanical Dimension...........................................................................................................................................................................................................................................................................................16
6. Connectors and Pinouts........................................................................................................................................................................................................................................................................................17
6.1. Carrier Board Signals —Server Type....................................................................................................................................................................................................................................................................................17
6.2. Connector Location and Pinout Compatibility..................................................................................................................................................................................................................................................................18
6.3. Carrier Board Design ..................................................................................................................................................................................................................................................................................................................19
6.4. COM-HPC Board-to-board Connectors ..............................................................................................................................................................................................................................................................................19
6.5. PCIe x16 Connectors...................................................................................................................................................................................................................................................................................................................25
6.6. PCIe x4 Connector .......................................................................................................................................................................................................................................................................................................................26
6.7. KEY-M Slot Connector................................................................................................................................................................................................................................................................................................................27
6.8. USB2.0 Ports Header...................................................................................................................................................................................................................................................................................................................28
6.9. USB3.x Ports Header...................................................................................................................................................................................................................................................................................................................28
6.10. SATA Port........................................................................................................................................................................................................................................................................................................................................29
6.11. eSPI Debug Connector...............................................................................................................................................................................................................................................................................................................30
6.12. BMC Debug Connector..............................................................................................................................................................................................................................................................................................................30
6.13. COM Port Connector..................................................................................................................................................................................................................................................................................................................31
6.14. I2C0/1 and SMBus Header .......................................................................................................................................................................................................................................................................................................32
6.15. GPIO Header..................................................................................................................................................................................................................................................................................................................................32
6.16. External SMBus Header .............................................................................................................................................................................................................................................................................................................33
6.17. Fan Header .....................................................................................................................................................................................................................................................................................................................................33
6.18. General Purpose SPI Header....................................................................................................................................................................................................................................................................................................35
6.19. IPMI Header ...................................................................................................................................................................................................................................................................................................................................35

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6.20. Front Panel Control.....................................................................................................................................................................................................................................................................................................................36
6.21. Power Connectors .......................................................................................................................................................................................................................................................................................................................37
6.22. Carrier EEPROM Address Switch ............................................................................................................................................................................................................................................................................................38
6.23. Module (I2C0) / BMC (I2C8) Jumpers...................................................................................................................................................................................................................................................................................39
6.24. Other Jumpers...............................................................................................................................................................................................................................................................................................................................39
6.25. Power Jumpers..............................................................................................................................................................................................................................................................................................................................40
7. Secondary BIOS ........................................................................................................................................................................................................................................................................................................42
8. Switches, POST and LEDs......................................................................................................................................................................................................................................................................................43
8.1. Switches (S0-S5) ...........................................................................................................................................................................................................................................................................................................................43
8.2. POST and inductors LEDs..........................................................................................................................................................................................................................................................................................................45
8.3. ATX Power Connectors ..............................................................................................................................................................................................................................................................................................................46
8.4. AT Power Mode ............................................................................................................................................................................................................................................................................................................................47

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List of Figures
Figure 1 – Carrier top view..........................................................................................................................................................................................................................................................................................11
Figure 2 – Component location................................................................................................................................................................................................................................................................................14
Figure 3 – Functional diagram...................................................................................................................................................................................................................................................................................15
Figure 4 – Mechanical dimensions ..........................................................................................................................................................................................................................................................................16
Figure 5 – Carrier board signals, Server type pinout........................................................................................................................................................................................................................................17
Figure 6 – Connector location and pinout compatibility................................................................................................................................................................................................................................18

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
Page 10 Copyright © 2023 ADLINK Technology, Inc.
1. Introduction
Warning:This is an EA (early available) engineering manual. The contents may not accurately reflect the actual or final version of this product.
The COM-HPC modular approach of custom carrier combined with off-the-shelf system cores relives developers and manufacturers the need to design
their own system core, thereby not only accelerating their proof of concept significantly but also empowers them to upgrade to later generation
processors without redesign. The COM-HPC concept reduces engineering complexity, lowers the threshold for total project quantity, and last but not
least brings your product to the market in no time. The average time to design a carrier board is less than half the time of a full custom board.
The COM-HPC Server Base, based on PICMG COM-HPC R1.0, is an Extended ATX size carrier board, supplied by ATX and AT power source through
24+8 power connector. Together with the COM-HPC Server Type module of your choice and off-the-shelf add-on cards, you can quickly emulate the
functionality of your desired end product for software development and hardware verification.
To build a functional prototype of your target system you will need:
• COM-HPC Server Type module
• COM-HPC Server Base carrier
• PCI Express-based storage or SATA storage (SATA storage solutions are dependent on module specifications)
The COM-HPC Server Base is compatible with Size E and Size D COM-HPC Server Type modules and may accommodate:
• 1x Remote management IPMI BMC and pin header for IPMB
• 3x PCI Express x16 slot, 2x PCI Express x4 slots, and 2x M.2 M-key connector
• OCP connectors for dedicated OCP 10GbE Mezzanines
• 1x VGA, 1x general purpose LAN, 1x remote management LAN, 4x USB 3.0/2.0, 1x DB-9 COM port (at rear I/O)
• 1x USB connector (2-in-1), 2x USB 10 pin header (2-in-1) for front panel

COM-HPC Server Base User’s Guide PICMG COM-HPC Rev 1.0
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2. Special Features
2.1. Three PCI Express x16
Maximum 2x FHFL PCI Express cards at PCIE16-31 slot and PCIE32-47 slot, and 1x FHHL PCI Express card at PCIE48-63 slot
PCIE16-31 and PCIE32-47 slots can accommodate up to 2-slot-width PCI Express cards, in the condition of not using PCIE4-7 slot
Figure 1 – Carrier top view

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2.2. Out-of-Band Management
Out-of-band (OOB) management features, such as firmware update, power and reset control, performance monitoring and more, are defined by PICMG
COM-HPC specifications.
The management architecture is divided into BMC (Board Management Controller, also called IPMI BMC or Carrier BMC) and MMC (Module
Management Controller). As defined, BMC is located on the COM-HPC carrier, while MMC is located on the COM-HPC module.
Carrier BMC communicates with MMC through IPMB interface, an I2C interface with IPMI protocol support.
Note:OOB management support and features are dependent on the module used.

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2.3. High Speed Ethernet Expansion
The high-speed Ethernet MACs are located on the COM-HPC module used. The PHY is (if used) located on the COM-HPC carrier as defined by PICMG
COM-HPC specifications.
PHY may vary due to the silicon platform or Ethernet controller used, thus a connector-style design instead of a PHY chip on carrier is adopted for
further expansion purposes.
OCP connector is adopted and supports dedicated OCP mezzanine card (by choice).

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3. Component Location
Figure 2 – Component location

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4. Functional Diagram
Figure 3 – Functional diagram

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5. Mechanical Dimension
Figure 4 – Mechanical dimensions
Note:All dimensions are shown in millimeters with a tolerance of ± 0.25mm unless otherwise noted.

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6. Connectors and Pinouts
6.1. Carrier Board Signals —Server Type
Figure 5 – Carrier board signals, Server type pinout

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6.2. Connector Location and Pinout Compatibility
Connector positions and pinouts comply with pinout and signal descriptions within PICMG COM-HPC Carrier Design Guide R2. This document includes:
descriptions of pinouts, signals, and mechanical characteristics of the COM-HPC specification. The COM-HPC Server Base carrier is compatible with
COM-HPC modules in Size E and D form factor, Server Type pinout, COM-HPC Module Base Specification R1.0.
Figure 6 – Connector location and pinout compatibility

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6.3. Carrier Board Design
COM-HPC Server Base follows the PICMG COM-HPC Carrier Design Guide where possible, and its design and schematic have been fully verified. It is
recommend to utilize them as references for your carrier board design. COM-HPC Server Base schematics and mechanical files, as well as the CDG, can
be downloaded from ADLINK COM’s webpage.
6.4. COM-HPC Board-to-board Connectors
Signals and Pinouts for COM-HPC Server Type (Size D & E)
Row A
Row B
Row C
Row D
A1
VCC
B1
VCC
C1
VCC
D1
VCC
A2
VCC
B2
PWRBTN#
C2
RSTBTN#
D2
VCC
A3
VCC
B3
VCC
C3
VCC
D3
VCC
A4
VCC
B4
THERMTRIP#
C4
CARRIER_HOT#
D4
VCC
A5
VCC
B5
VCC
C5
VCC
D5
VCC
A6
VCC
B6
TAMPER#
C6
VIN_PWR_OK
D6
VCC
A7
VCC
B7
VCC
C7
VCC
D7
VCC
A8
VCC
B8
SUS_S3#
C8
SUS_S4_S5#
D8
VCC
A9
VCC
B9
VCC
C9
VCC
D9
VCC
A10
GND
B10
WD_STROBE#
C10
GND
D10
WAKE0#
A11
BATLOW#
B11
WD_OUT
C11
FAN_PWMOUT
D11
WAKE1#
A12
PLTRST#
B12
GND
C12
FAN_TACHIN
D12
GND
A13
GND
B13
USB5-
C13
GND
D13
USB1-
A14
USB7-
B14
USB5+
C14
USB3-
D14
USB1+
A15
USB7+
B15
GND
C15
USB3+
D15
GND
A16
GND
B16
USB4-
C16
GND
D16
USB0-
A17
USB6-
B17
USB4+
C17
USB2-
D17
USB0+
A18
USB6+
B18
GND
C18
USB2+
D18
GND
A19
GND
B19
RSVD
C19
GND
D19
ETH0_RX-
A20
ETH4_RX-
B20
RSVD
C20
ETH0_TX-
D20
ETH0_RX+
A21
ETH4_RX+
B21
RSVD
C21
ETH0_TX+
D21
GND
A22
GND
B22
RSVD
C22
GND
D22
ETH1_RX-

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Row A
Row B
Row C
Row D
A23
ETH5_RX-
B23
RSVD
C23
ETH1_TX-
D23
ETH1_RX+
A24
ETH5_RX+
B24
VCC_5V_SBY
C24
ETH1_TX+
D24
GND
A25
GND
B25
USB67_OC#
C25
GND
D25
ETH2_RX-
A26
ETH6_RX-
B26
USB45_OC#
C26
ETH2_TX-
D26
ETH2_RX+
A27
ETH6_RX+
B27
USB23_OC#
C27
ETH2_TX+
D27
GND
A28
GND
B28
USB01_OC#
C28
GND
D28
ETH3_RX-
A29
ETH7_RX-
B29
SML1_CLK
C29
ETH3_TX-
D29
ETH3_RX+
A30
ETH7_RX+
B30
SML1_DAT
C30
ETH3_TX+
D30
GND
A31
GND
B31
PMCALERT#
C31
GND
D31
USB3_SSTX-
A32
RSVD
B32
SML0_CLK
C32
USB3_SSRX-
D32
USB3_SSTX+
A33
RSVD
B33
SML0_DAT
C33
USB3_SSRX+
D33
GND
A34
GND
B34
USB_PD_ALERT#
C34
GND
D34
USB2_SSTX-
A35
ETH4_TX-
B35
USB_PD_I2C_CLK
C35
USB2_SSRX-
D35
USB2_SSTX+
A36
ETH4_TX+
B36
USB_PD_I2C_DAT
C36
USB2_SSRX+
D36
GND
A37
GND
B37
USB_RT_ENA
C37
GND
D37
USB1_SSTX0-
A38
ETH5_TX-
B38
USB1_LSRX
C38
USB1_SSRX0-
D38
USB1_SSTX0+
A39
ETH5_TX+
B39
USB1_LSTX
C39
USB1_SSRX0+
D39
GND
A40
GND
B40
USB0_LSRX
C40
GND
D40
USB1_SSTX1-
A41
ETH6_TX-
B41
USB0_LSTX
C41
USB1_SSRX1-
D41
USB1_SSTX1+
A42
ETH6_TX+
B42
GND
C42
USB1_SSRX1+
D42
GND
A43
GND
B43
USB0_AUX-
C43
GND
D43
USB0_SSTX0-
A44
ETH7_TX-
B44
USB0_AUX+
C44
USB0_SSRX0-
D44
USB0_SSTX0+
A45
ETH7_TX+
B45
RSVD
C45
USB0_SSRX0+
D45
GND
A46
GND
B46
RSVD
C46
GND
D46
USB0_SSTX1-
A47
USB1_AUX-
B47
VCC_BOOT_SPI
C47
USB0_SSRX1-
D47
USB0_SSTX1+
A48
USB1_AUX+
B48
BOOT_SPI_CS#
C48
USB0_SSRX1+
D48
GND
A49
GND
B49
BSEL0
C49
GND
D49
SATA0_RX-
A50
eSPI_IO0
B50
BSEL1
C50
BOOT_SPI_IO0
D50
SATA0_RX+
A51
eSPI_IO1
B51
BSEL2
C51
BOOT_SPI_IO1
D51
GND
A52
eSPI_IO2
B52
eSPI_ALERT0#
C52
BOOT_SPI_IO2
D52
SATA0_TX-
A53
eSPI_IO3
B53
eSPI_ALERT1#
C53
BOOT_SPI_IO3
D53
SATA0_TX+
A54
eSPI_CLK
B54
eSPI_CS0#
C54
BOOT_SPI_CLK
D54
GND
A55
GND
B55
eSPI_CS1#
C55
GND
D55
SATA1_RX-
A56
PCIe_CLKREQ0_LO#
B56
eSPI_RST#
C56
PCIe_REFCLK0_HI-
D56
SATA1_RX+
A57
PCIe_CLKREQ0_HI#
B57
GND
C57
PCIe_REFCLK0_HI+
D57
GND
A58
GND
B58
PCIe_BMC_RX-
C58
GND
D58
SATA1_TX-
A59
PCIe_BMC_TX-
B59
PCIe_BMC_RX+
C59
PCIe_REFCLK0_LO-
D59
SATA1_TX+