Lanner HTCA-6200 User manual

HTCA-6200 User Manual
HTCA-6200
User Manual
Version: 1.6
Date of Release: 2022-3-24
Telecom Datacenter Appliances
Hybrid TCA Platforms

HTCA-6200 User Manual
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About this Document
This manual describes the overview of the various functionalities of this product, and the information you
need to get it ready for operation. It is intended for those who are:
-responsible for installing, administering and troubleshooting this system or Information Technology
professionals.
-assumed to be qualified in the servicing of computer equipment, such as professional system
integrators, or service personnel and technicians.
The latest version of this document can be found on Lanner’s official website, available either through the
product page or through the Lanner Download Center page with a login account and password.
Conventions & Icons
This document utilizes different font types and icons to make the selected text more transparent and
explicable to users. Please note that this document contains the following conventions:
Font Conventions
Example
Convention
Usage
iptables –F Monospace, shaded
A command to be entered at a shell
command-line
Setup page
Bold
A title of a dialog box or a page
<Enter>
Between a pair of inequality signs
A physical keyboard button
“Menu”Between a pair of quotation marks
A menu option or a software button to be
clicked
Readme.txt
In Italic
A filename or a file path
IPMI User Guide Underlined
The name of another document or a chapter
in this document
Icon Descriptions
Icon
Usage
Note or Information This mark indicates that there is something you should pay particular
attention to while using the product.
Warning or Important This mark indicates that there is a caution or warning and it is
something that could damage your property or product.

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Online Resources
To obtain additional documentation resources and software updates for your system, please visit the
Lanner Download Center. As certain categories of documents are only available to users who are logged
in, please be registered for a Lanner Account at http://www.lannerinc.com/ to access published documents
and downloadable resources.
For troubleshooting the issues with your system, please check the Lanner Q&A page for a diagnostic
procedure and troubleshooting steps.
Technical Support
In addition to contacting your distributor or sales representative, you could submit a request to our the
Lanner Technical Support page to fill in a support ticket to our technical support department.
Copyright and Trademarks
This document is copyrighted © 2022 by Lanner Electronics Inc. All rights are reserved. The original
manufacturer reserves the right to make improvements to the products described in this manual at any time
without notice.
No part of this manual may be reproduced, copied, translated or transmitted in any form or by any means
without the prior written permission of the original manufacturer.
Information provided in this manual is intended to be accurate and reliable. However, the original
manufacturer assumes no responsibility for its use, nor for any infringements upon the rights of third parties
that may result from such use.
Documentation Feedback
Your feedback is valuable to us, as it will help us continue to provide you with more accurate and relevant
documentation. To provide any feedback, comments or to report an error, please email to
[e-mail]. Thank you for your time.

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Contact Information
Taiwan Corporate Headquarters
Lanner Electronics Inc.
7F, No.173, Sec.2, Datong Rd.
Xizhi District, New Taipei City 22184,
Taiwan
立端科技股份有限公司
221 新北市汐止區
大同路二段 173 號7樓
T: [phone]
F: [phone]
E: [e-mail]
China
Beijing L&S Lancom Platform Tech. Co., Ltd.
Guodong LOFT 9 Layer No. 9 Huinan Road,
Huilongguan Town, Changping District, Beijing
102208 China
T: [phone]
F: [phone]
E: [e-mail]
USA
Lanner Electronics Inc.
47790 Westinghouse Drive
Fremont, CA 94539
T: [phone]
F: [phone]
E: [e-mail]
Canada
Lanner Electronics Canada Ltd
3160A Orlando Drive
Mississauga, ON
L4V 1R5 Canada
T: [phone]
F: [phone]
E: [e-mail]
Europe
Lanner Europe B.V.
Wilhelmina van Pruisenweg 104
2595 AN The Hague
The Netherlands
T: [phone]
E: [e-mail]

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Acknowledgment
Intel®, Intel®Pentium® and Intel®Celeron® are registered trademarks of Intel® Corp or its subsidiaries in the U.S.
and/or other countries.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Caution
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate this equipment.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Safety Guidelines
Follow these guidelines to ensure general safety:
Keep the chassis area clear and dust-free during and after installation.
Do not wear loose clothing or jewelry that could get caught in the chassis. Fasten your tie or scarf and roll up your
sleeves.
Wear safety glasses if you are working under any conditions that might be hazardous to your eyes.
Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
Disconnect all power by turning off the power and unplugging the power cord before installing or removing a chassis
or working near power supplies
Do not work alone if potentially hazardous conditions exist.
Never assume that power is disconnected from a circuit; always check the circuit.
Note
1. An unshielded-type power cord is required in order to meet FCC emission limits and also to prevent interference
to the nearby radio and television reception. It is essential that only the supplied power cord be used.
2. Use only shielded cables to connect I/O devices to this equipment.
3. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
Important
1. Operations in the 5.15-5.25GHz band are restricted to indoor usage only.
2. This device meets all the other requirements specified in Part 15E, Section 15.407 of the FCC Rules.

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Consignes de sécurité
Suivez ces consignes pour assurer la sécurité générale :
Laissez la zone du châssis propre et sans poussière pendant et après l’installation.
Ne portez pas de vêtements amples ou de bijoux qui pourraient être pris dans le châssis. Attachez votre cravate ou
écharpe et remontez vos manches.
Portez des lunettes de sécurité pour protéger vos yeux.
N’effectuez aucune action qui pourrait créer un danger pour d’autres ou rendre l’équipement dangereux.
Coupez complètement l’alimentation en éteignant l’alimentation et en débranchant le cordon d’alimentation avant
d’installer ou de retirer un châssis ou de travailler à proximité de sources d’alimentation.
Ne travaillez pas seul si des conditions dangereuses sont présentes.
Ne considérez jamais que l’alimentation est coupée d’un circuit, vérifiez toujours le circuit. Cet appareil génère, utilise
et émet une énergie radiofréquence et, s’il n’est pas installé et utilisé conformément aux instructions des fournisseurs
de composants sans fil, il risque de provoquer des interférences dans les communications radio.
Lithium Battery Caution
There is risk of Explosion if Battery is replaced by an incorrect type.
Dispose of used batteries according to the instructions.
Installation only by a skilled person who knows all Installation and Device Specifications which are to be applied.
Do not carry the handle of power supplies when moving to another place.
Please conform to your local laws and regulations regarding safe disposal of lithium BATTERY.
Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery can result in an explosion.
Leaving a battery in an extremely high temperature surrounding environment can result in an explosion or the
leakage of flammable liquid or gas.
A battery subjected to extremely low air pressure that may result in an explosion or the leakage of flammable liquid
or gas.
Avertissement concernant la pile au lithium
Risque d’explosion si la pile est remplacée par une autre d’un mauvais type.
Jetez les piles usagées conformément aux instructions.
L’installation doit être effectuée par un électricien formé ou une personne formée à l’électricité connaissant toutes
les spécifications d’installation et d’appareil du produit.
Ne transportez pas l’unité en la tenant par le câble d’alimentation lorsque vous déplacez l’appareil.
Operating Safety
Electrical equipment generates heat. Ambient air temperature may not be adequate to cool equipment to acceptable
operating temperatures without adequate circulation. Be sure that the room in which you choose to operate your
system has adequate air circulation.
Ensure that the chassis cover is secure. The chassis design allows cooling air to circulate effectively. An open chassis
permits air leaks, which may interrupt and redirect the flow of cooling air from internal components.
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs when
electronic components are improperly handled and can result in complete or intermittent failures. Be sure to follow
ESD-prevention procedures when removing and replacing components to avoid these problems.
Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. If no wrist strap is available, ground
yourself by touching the metal part of the chassis.
Periodically check the resistance value of the antistatic strap, which should be between 1 and 10 megohms (Mohms).
Sécurité de fonctionnement
L’équipement électrique génère de la chaleur. La température ambiante peut ne pas être adéquate pour refroidir
l’équipement à une température de fonctionnement acceptable sans circulation adaptée. Vérifiez que votre site
propose une circulation d’air adéquate.
Vérifiez que le couvercle du châssis est bien fixé. La conception du châssis permet à l’air de refroidissement de bien
circuler. Un châssis ouvert laisse l’air s’échapper, ce qui peut interrompre et rediriger le flux d’air frais destiné aux
composants internes.
Les décharges électrostatiques (ESD) peuvent endommager l’équipement et gêner les circuits électriques. Des dégâts

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d’ESD surviennent lorsque des composants électroniques sont mal manipulés et peuvent causer des pannes totales
ou intermittentes. Suivez les procédures de prévention d’ESD lors du retrait et du remplacement de composants.
Portez un bracelet anti-ESD et veillez à ce qu’il soit bien au contact de la peau. Si aucun bracelet n’est disponible,
reliez votre corps à la terre en touchant la partie métallique du châssis.
Vérifiez régulièrement la valeur de résistance du bracelet antistatique, qui doit être comprise entre 1 et 10 mégohms
(Mohms).
Mounting Installation Precaution
The following should be put into consideration for rack-mount or similar mounting installations:
Do not install and/or operate this unit in any place that flammable objects are stored or used in.
The installation of this product must be performed by trained specialists; otherwise, a non-specialist might create
the risk of the system’s falling to the ground or other damages.
Lanner Electronics Inc. shall not be held liable for any losses resulting from insufficient strength for supporting the
system or use of inappropriate installation components.
Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given
to installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified
by the manufacturer.
Reduced Air Flow - Installation of the equipment in a rack should be such that the amount of airflow required for
safe operation of the equipment is not compromised.
Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is not
achieved due to uneven mechanical loading.
Circuit Overloading - Consideration should be given to the connection of the equipment to the supply circuit and
the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should be used when addressing this concern.
Reliable Grounding - Reliable grounding of rack mounted equipment should be maintained. Particular attention
should be given to supply connections other than direct connections to the branch circuit (e.g. use of power strips).
Installation & Operation
This equipment must be grounded. The power cord for product should be connected to a socket-outlet with earthing
connection.
Cet équipement doit être mis à la terre. La fiche d'alimentation doit être connectée à une prise de terre correctement
câblée
Suitable for installation in Information Technology Rooms in accordance with Article 645 of the National Electrical
Code and NFPA 75.
Peut être installé dans des salles de matériel de traitement de l'information conformément à l'article 645 du National
Electrical Code et à la NFPA 75.
The machine can only be used in a restricted access location and must be installed by a skilled person.
Les matériels sont destinés à être installés dans des EMPLACEMENTS À ACCÈS RESTREINT.
Warning
Class I Equipment. This equipment must be earthed. The power plug must be connected to a properly wired earth ground
socket outlet. An improperly wired socket outlet could place hazardous voltages on accessible metal parts.
“Product shall be used with Class 1 laser device modules.”
Avertissement
Équipement de classe I. Ce matériel doit être relié à la terre. La fiche d’alimentation doit être raccordée à une prise de
terre correctement câblée. Une prise de courant mal câblée pourrait induire des tensions dangereuses sur des parties
métalliques accessibles.
“Le produit doit être utilisé avec des modules de dispositifs laser de classe 1.”

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Electrical Safety Instructions
Before turning on the device, ground the grounding cable of the equipment. Proper grounding (grounding) is very
important to protect the equipment against the harmful effects of external noise and to reduce the risk of electrocution
in the event of a lightning strike. To uninstall the equipment, disconnect the ground wire after turning off the power. A
ground wire is required and the part connecting the conductor must be greater than 4 mm2 or 10 AWG.
Consignes de sécurité électrique
Avant d’allumer l’appareil, reliez le câble de mise à la terre de l’équipement à la terre.
Une bonne mise à la terre (connexion à la terre) est très importante pour protéger l’équipement contre les effets
néfastes du bruit externe et réduire les risques d’électrocution en cas de foudre.
Pour désinstaller l’équipement, débranchez le câble de mise à la terre après avoir éteint l’appareil.
Un câble de mise à la terre est requis et la zone reliant les sections du conducteur doit faire plus de 4 mm2 ou 10
AWG.
Grounding Procedure for Power Source
Loosen the screw of the earthing point.
Connect the grounding cable to the ground.
The protection device for the power source must provide 30 A current.
This protection device must be connected to the power source before
power.
The cable hould 16 AWG
Procédure de mise à la terre pour source d’alimentation
Desserrez la vis du terminal de mise à la terre.
Branchez le câble de mise à la terre à la terre.
L’appareil de protection pour la source d’alimentation doit fournir 30 A de
courant.
Cet appareil de protection doit être branché à la source d’alimentation
avant l’alimentation.
Le câble doit 16 AWG

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TABLE OF CONTENTS
Chapter 1: Introduction................................................................... 11
Key Features ............................................................................................................................... 11
Package Content......................................................................................................................... 11
Ordering Information ................................................................................................................. 11
System Specifications ................................................................................................................. 12
Front I/Os.................................................................................................................................... 13
Rear I/Os..................................................................................................................................... 14
Chapter 2: Motherboard information ............................................ 15
Block Diagram............................................................................................................................. 15
Motherboard Layout .................................................................................................................. 16
Internal Jumper & Connectors ................................................................................................... 17
Chapter 3: Hardware Setup ............................................................. 19
Accessing the Compute Blade(s) ................................................................................................ 20
Installing the CPU(s) ................................................................................................................... 21
Installing System Memory.......................................................................................................... 26
Installing IPMI Card (Optional) ................................................................................................... 28
Installing M.2 SATA Storage Card (Optional) ............................................................................. 29
Installing Disk Drives................................................................................................................... 30
Replacing Front Network I/O Blades & Switch Boards .............................................................. 31
Replacing Cooling Fans............................................................................................................... 32
Replacing Power Supply Units.................................................................................................... 33
Chapter 4: BIOS Setup ..................................................................... 34
Main............................................................................................................................................ 35
Advanced .................................................................................................................................... 36
Platform...................................................................................................................................... 58
Socket ......................................................................................................................................... 64
Server Mgmt............................................................................................................................... 80
Security....................................................................................................................................... 85
Boot ............................................................................................................................................ 88
Save & Exit .................................................................................................................................. 89

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Appendix A: Programming Watchdog Timer................................. 91
Appendix B: Setting up Console Redirection ................................. 92
Appendix C: Programming Generation 3 LAN Bypass .................. 93
Appendix D: Programming the LCM............................................... 94
Appendix E: Terms and Conditions ................................................ 98

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CHAPTER 1: INTRODUCTION
Thank you for choosing HTCA-6200. The network appliance is designed for high-availability
telecommunication application. Built in 2U form factor chassis, HTCA-6200 integrates the best in class x86
computing power and switching capabilities in a single appliance. The system supports up to 2x Intel x86
motherboards and 2 swappable, front-panel network I/O blades. HTCA-6200 also integrates switch fabric
for enhanced communications between motherboards.
Internally, each motherboard of HTCA-6200 is empowered by 2x 2nd Gen Intel® Xeon® Processor Scalable
Family CPUs and 16x DDR4 R-DIMMs. Storage wise, each motherboard supports 1x SATA 2.5” disk drive bay,
therefore, there will be a total of 2 HDD/SSD externally accessible drive bay for HTCA-6200. As designed for
telecommunication application, HTCA-6200 is NEBS compliant.
Key Features
2 CPU blades in the rear, supports 2x 2nd Gen Intel® Xeon® Processor Scalable Family CPU for each
motherboard
PCH: Intel® C621/C627
16x 288-pin DIMM DDR4 up to 2,400MHz registered DIMM sockets on each motherboard
2x externally accessible SATA 2.5” HDD/SSD drive bays
2x swappable I/O blades on front, supporting 2x Switch blades or 2x Ethernet blades
NEBS compliant design
Package Content
Your package contains the following items:
1x HTCA-6200 Platform
1x Rackmount Kit
1x Console Cable
1x LAN cable (grey)
1x LAN cable (red)
Ordering Information
Item
Model Name
Description
2U System HTCA-6200C2U telecom network appliance with 2x CPU blades, 2x 2.5” HDD drive
bays, 2x I/O blades with 2x PSU slots
Compute NodeHMB-6110 X86 compute node supports 2x 2nd Gen Intel® Xeon® Scalable
Processor Family, with C621/C627 PCH
NIC Blade HLM-1001 20x SFP+ Ethernet Network Interface
Switch Blade
HLM-1021 2x QSFP28, 16x SFP+, 4x 10G Base-T, with Control Board
HLM-1030 10x QSFP28, 6x 10G SFP+ (and optional Timing Card)
HLM-1101 14x QSFP28 with Control Board

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System Specifications
Form Factor
2U Rackmount
Platform
CPU Options
2nd Gen Intel® Xeon® Scalable Processors Family
Frequency
Depending on CPU
CPU TDP
Up to 165W
Number of Cores
Depending on CPU
Chipset
Intel® C621/C627 Chipset
BIOS
AMI SPI Flash BIOS
System Memory
Technology
DDR4 2933MHz (Registered)
Max. Capacity
Up to 512GB (Registered) per M/B tray
Socket
Up to 16 x 288-pin DIMM per M/B tray
Switch Blade
Switch Fabric
100G/ 40G/ 10G/ 1G/ Optical fiber
Speed
KR4, QSFP28, QSFP+, SFP+, SFP
Interface
By SKU
Ethernet Blade
Controller
XL710
Speed
10Gbps
Interface
Up to 20x SFP+
Storage
Type
SATA III, 6Gb/s per port
Installation
2x 2.5” swappable drive bays
Type
M.2 M-Key
Installation
1 x M.2 M Key socket per M/B tray
I/O
Reset Button
Yes
Console
1 x RJ45
USB
1 x Type A
IPMI
OPMA socket to support IPMI (IAC-AST2500)
Expansion
PCIe
N/A
PCI
N/A
Cooling
Processor
CPU heatsinks
System
Up to 5x independent hot-swappable cooling
fans with smart fan control, each blade x5
Environment
Operating/Storage Temperature
0 ~ 40ºC /-20 ~ 70ºC
Relative Humidity
5% to 90%, non-condensing
Miscellaneous
LCD Module
2 x 20 characters
Watchdog
Yes
Internal RTC with Li
Battery
Yes
Mechanical
Dimension (W x H x D)
438 x 88 x 685.8 mm
Weight
TBD
Mounting
Rack mount
Power Type / Watts
AC 1200-watt N+1 Redundant /each
DC 1010-watt N+1 Redundant /each
PM bus support, up to 3x PSU slots
Input
AC 85~264V; DC -36~-72V
OS Support
Linux
Linux Kernel 2.6 or above
Certification
EMC
CE Class A, FCC Class A

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Front I/Os
No.
Description
F1
LCM
LCM with 4x keypads
F2
Removable HDD/SSD Trays
2x 2.5” SATA HDD/SSD removable trays
F3
MGT Port
1x RJ-45 Management port
F4
Console Port
1x RJ-45 Console port
F5
USB Port
1x USB 2.0 Type-A port
F6 Switch Blade
Max. 2x Switch Boards (swappable)
F7
LAN I/O Blade
Max. 2x LAN I/O Blades (swappable)
F4
LAN I/O Blade
Switch Blade
F6
F1
F2
F3
F5
F7

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Rear I/Os
No.
Description
R1
CPU Blades
2x Swappable CPU blades
R2
MGT Port
1x RJ45 Management Port
R3
USB Port
1x USB 2.0 Port
R4
VGA Port
1x Video Graphics Array (VGA) Port
R5
Power Button
1x Power Button
R6
Cooling Fans
5x Cooling fans per CPU blade
R7
Power Supply
2x Redundant Power Supply units
CPU Blade 1
CPU Blade 2
R7
R1
R3
R2
R6
R5
R4

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CHAPTER 2: MOTHERBOARD INFORMATION
Block Diagram
The block diagram indicates how data flows among components on the motherboard. Please refer to the
following figure for your motherboard’s layout design.

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Motherboard Layout
The motherboard layout shows the connectors and jumpers on the board. Refer to the following picture as
a reference of the pin assignments and the internal connectors.

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Internal Jumper & Connectors
CONN3: For Power LED indication
Pin
Description
1
Anode
2
Cathode
CONN1: For Thumb Screw detection
Pin
Description
1
Detect
2
GND
JPWR1: For Power Button detection
Pin
Description
1
GND
2
Power on
JFAN1～JFAN5：For Fan Module Connection
Pin
Description
1
GND
2
+12V
3
RPM sense
4
RPM sense
5
PWM control
JVGA1: For VGA Monitor Connection
Pin
Description
Pin
Description
1
RED
2
GND
3
GREEN
4
GND
5
BLUE
6
GND
7
HSYNC
8
NC
9
VSYNC
10
GND
11
DDC_DATA
12
DDC_CLK
JUSB1: For USB Device Connection
Pin
Description
Pin
Description
1
+5V_SB
2
+5V_SB
3
D1_N
4
D2_N
5
D1_P
6
D2_P
7
GND
8
GND
9
GND
10
GND

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JNGFF1: For M.2－2280 socket 3 module
Pin
Description
Pin
Description
1, 3, 9, 15,
21, 27, 33,
39, 45, 51,
57, 71, 73,
75
GND
2, 4, 12, 14,
16, 18, 70,
72, 74
+3.3V
5
PERN3
6, 8, 20, 22,
24, 26, 28,
30, 32, 34,
36, 38, 40,
42, 44, 46,
48, 56, 58,
68,
NC
7
PERP3
11
PETN3
13
PETP3
17
PERN2
19
PERP2
23
PETN2
25
PETP2
29
PERN1
31
PERP1
35
PETN1
37
PETP1
41
PERN0 / SATA_RP
43
PERP0 / SATA_RN
47
PETN0 / SATA_TN
49
PETP0 / SATA_TP
53
REFCLKN
10
DAS#
55
REFCLKP
50
PERST#
67
NC
52
CLKREQ#
69
DETECT
54
PEWAKE#
CON1: For Lanner IPMI Card（IAC-AST2500）
J36: For Lanner LAN Extension Card（HRC-61001）
JPLD1: For Lanner CPLD Debug Purpose
JRST1: For Reset Debug Purpose
CON2: For Function Reserved
JCMOS1：For Clear CMOS
Pin
Description
1
－
2
Normal
2
－
3
Clear CMOS
JHDA_SDO：For Flash Descriptor Security Override
Pin
Description
1
－
2
Normal
2
－
3
Override
JSPITPM：For Lanner TPM Module（IAC-TPM04）or SPI Fixture Debug Purpose
J80P1：For Lanner LPC Fixture Debug Purpose

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CHAPTER 3: HARDWARE SETUP
WARNING: (1) To reduce the risk of personal injury, electric shock, or damage to the equipment,
please remove all power sources. (2) Please wear ESD protected gloves before conducting the
following steps. This exclamation point indicates that there is a caution or warning and it is
something that could damage your property or product.
Based on your application and modules used, install modules in the corresponding slots.
CPU
CPU
Memory
Memory
IPMI
Memory
M.2
SATA
Storage

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Accessing the Compute Blade(s)
You have to access the compute blade(s) in order to install or replace CPUs, heatsinks, and DDR
memory DIMMs. Please follow the steps below to access the compute blades.
1. Select a compute blade you wish to access the internal components.
2. Rotate and loosen the captive screws circled in the image below. You may apply a screwdriver to conduct
this task.
3. Hold onto both captive screws and handles and lift them upwards at the same time.
4. Then, pull the compute blade out.