TYAN B8026T70AV18E8HR Quick start guide

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TN70A-B8026
Service Engineer’s Manual

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PREFACE
Copyright
This publication, including all photographs, illustrations, and software, is
protected under international copyright laws, with all rights reserved.
Neither this manual, nor any material contained herein, may be reproduced
without written consent of manufacturer.
Copyright 2019 MITAC COMPUTING TECHNOLOGY CORPORATION. All
rights reserved. TYAN®is a registered trademark of MITAC COMPUTING
TECHNOLOGY CORPORATION.
Version 1.0k
Disclaimer
Information contained in this document is furnished by MITAC COMPUTING
TECHNOLOGY CORPORATION and has been reviewed for accuracy and
reliability prior to printing. MITAC assumes no liability whatsoever, and
disclaims any express or implied warranty, relating to sale and/or use of TYAN®
products including liability or warranties relating to fitness for a particular
purpose or merchantability. MITAC retains the right to make changes to
produce descriptions and/or specifications at any time, without notice. In no
event will MITAC be held liable for any direct or indirect, incidental or
consequential damage, loss of use, loss of data or other malady resulting from
errors or inaccuracies of information contained in this document.
Trademark Recognition
All registered and unregistered trademarks and company names contained in
this manual are property of their respective owners including, but not limited to
the following.
TYAN®is a trademark of MITAC COMPUTING TECHNOLOGY
CORPORATION.
Intel®is a trademark of Intel®Corporation.
AMI®, AMIBIOS® and combinations thereof are trademarks of AMI
Technologies.
Microsoft®, Windows®are trademarks of Microsoft Corporation.
IBM®, PC®, AT®and PS/2®are trademarks of IBM Corporation.
Winbond®is a trademark of Winbond Electronics Corporation.

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●FCC Declaration
Notice for the USA
Compliance Information Statement (Supplier's Declaration of Conformity, SDoC)
FCC Part 15: This device complies with part 15 of the FCC Rules.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following conditions:
‧This device may not cause harmful interference.
‧This device must accept any interference received, including interference that may
cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his
own expense.
Notice for Canada
This Class A digital apparatus complies with Canadian ICES-003. Cet appareil
numérique de la Classe A est conforme à la norme NMB-003 du Canada.
● Notice for Europe (CE Mark)
This product is in conformity with the Council Directive 2014/30/EU and 2014/35/EU.

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Warning
This equipment is compliant with Class A of CISPR 32. In a residential environment
this equipment may cause radio interference.
CAUTION
Lithium battery included with this board. Do not puncture, mutilate, or dispose of
battery in fire. There will be danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by manufacturer.
Dispose of used battery according to manufacturer instructions and in accordance
with your local regulations.
● VCCI-A
この装置は、クラスＡ機器です。この装置を住宅環境で使用すると電波妨害を引き
起こすことがあります。この場合には使用者が適切な対策を講ずるよう要求される
ことがあります。 VCCI-A
● Safety: IEC/EN 60950-1
This equipment is compliant with CB/LVD of Safety: IEC/EN 60950-1.

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About this Manual
This manual is intended for trained service technician/personnel with hardware
knowledge of computers. Front bezel key should be controlled by trained service
technician/personnel. Components inside the compartments should be serviced only
by a trained service technician/personnel. This manual is aimed to provide you with
instructions on installing your TYAN TN70A-B8026.
How this guide is organized
This guide contains the following parts:
Chapter 1: Overview
This chapter provides an introduction to the TYAN TN70A-B8026 barebones and
standard parts list, describes the external components, gives an overview of the
product from different angles.
Chapter 2: Setting Up
This chapter covers procedures on installing the processors, memory modules, hard
drivers and other optional parts.
Chapter 3: Replacing the Pre-installed Components
This chapter covers the removal and replacement procedures for pre-installed
components.
Appendix:
This chapter provides the cable connection table, the FRU parts list for reference of
system setup, and technical support in case a problem arises with your system.

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Safety and Compliance Information
Before installing and using TYAN TN70A-B8026, take note of the following
precautions:
·Read all instructions carefully.
·Do not place the unit on an unstable surface, cart, or stand.
·Do not block the slots and opening on the unit, which are provided for
ventilation.
·Only use the power source indicated on the marking label. If you are not
sure, contact the power company.
·The unit uses a three-wire ground cable, which is equipped with a third pin to
ground the unit and prevent electric shock. Do not defeat the purpose of this
pin. If your outlet does not support this kind of plug, contact your electrician
to replace your obsolete outlet.
·Do not place anything on the power cord. Place the power cord where it will
not be in the way of foot traffic.
·Follow all warnings and cautions in this manual and on the unit case.
·Do not push objects in the ventilation slots as they may touch high voltage
components and result in shock and damage to the components.
·When replacing parts, ensure that you use parts specified by the
manufacturer.
·When service or repairs have been done, perform routine safety checks to
verify that the system is operating correctly.
·Avoid using the system near water, in direct sunlight, or near a heating
device.
·Cover the unit when not in use.

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Safety Information
Retain and follow all product safety and operating instructions provided
with your equipment. In the event of a conflict between the instructions in
this guide and the instructions in equipment documentation, follow the
guidelines in the equipment documentation.
Observe all warnings on the product and in the operating instructions. To
reduce the risk of bodily injury, electric shock, fire and damage to the
equipment, observe all precautions included in this guide.
You must become familiar with the safety information in this guide before
you install, operate, or service TYAN products.
Symbols on Equipment
Caution. This symbol indicates a potential hazard.
The potential for injury exists if cautions are not
observed. Consult equipment documentation for
specific details.
Caution. Slide-mounted equipment is not to be
used as a shelf or a work space.
Warning. This symbol indicates the presence of
hazardous energy circuits or electric shock
hazards. Refer all servicing to qualified personnel.
Warning. This symbol indicates the presence of a
hot surface or hot component. If this surface is
contacted, the potential for injury exists.
To reduce risk of injury from a hot component,
allow the surface to cool before touching.
General Precautions
· Follow all caution and warning instructions marked on the equipment and
explained in the accompanying equipment documentation.

Machine Room Environment
· This device is for use only in a machine room or IT room.
 · Make sure that the area in which you install the system is properly
ventilated and climate-controlled.

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· Ensure that the voltage and frequency of your power source match the
voltage and frequency inscribed on the electrical rating label of the
equipment.
·Do not install the system in or near a plenum, air duct, radiator, or heat
register.
·Never use the product in a wet location.
Equipment Chassis
· Do not block or cover the openings to the system.
·Never push objects of any kind through openings in the equipment.
Dangerous voltages might be present.
·Conductive foreign objects can produce a short circuit and cause fire,
electric shock, or damage to your equipment.
·Lift equipment using both hands and with your knees bent.
Equipment Racks
To avoid injury or damage to the equipment:
·Observe local occupational health and safety requirements and guidelines
for manual materials handling.
·Do not attempt to move a rack by yourself; a minimum of two people are
needed to move a rack.
·Do not attempt to move a fully loaded rack. Remove equipment from the
rack before moving it.
·Do not attempt to move a rack on an incline that is greater than 10 degrees
from the horizontal.
·Make sure the rack is properly secured to the floor or ceiling.
·Make sure the stabilizing feet are attached to the rack if it is a single-rack
installation.
·Make sure racks are coupled together if it is a multiple-rack installation.
·Make sure the rack is level and stable before installing an appliance in the
rack.
·Make sure the leveling jacks are extended to the floor.

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·Make sure the full weight of the rack rests on the leveling jacks.
·Always load the rack from the bottom up. Load the heaviest component in
the rack first.
·Make sure the rack is level and stable before pulling a component out of the
rack.
·Make sure only one component is extended at a time. A rack might become
unstable if more than one component is extended.
To avoid damage to the equipment:
· The rack width and depth must allow for proper serviceability and cable
management.
· Ensure that there is adequate airflow in the rack. Improper installation or
restricted airflow can damage the equipment.
·The rack cannot have solid or restricted airflow doors. You must use a
mesh door on the front and back of the rack or remove the doors to ensure
adequate air flow to the system.
·If you install the Model in a rack, do not place equipment on top of the unit.
It will cause restricted airflow and might cause damage to the equipment.
·Make sure the product is properly matted with the rails. Products that are
improperly matted with the rails might be unstable.
·Verify that the AC power supply branch circuit that provides power to the
rack is not overloaded. This will reduce the risk of personal injury, fire, or
damage to the equipment. The total rack load should not exceed 80 percent
of the branch circuit rating. Consult the electrical authority having jurisdiction
over your facility wiring and installation requirements.
Equipment Power Cords
· Use only the power cords and power supply units provided with your
system. The system might have one or more power cords.
·Plug the power cord into a grounded (earthed) electrical outlet that is easily
accessible at all times.
·In all European electrical environments, you must ground the Green/Yellow
tab on the power cord. If you do not ground the Green/Yellow tab, it can
cause an electrical shock due to high leakage currents.
·
Do not place objects on AC power cords or cables. Arrange them so that no

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one might accidentally step on or trip over them.
·Do not pull on a cord or cable. When unplugging from the electrical outlet,
grasp the cord by the plug.
·To reduce the risk of electrical shock, disconnect all power cords before
servicing the appliance.
Equipment Batteries
· The system battery contains lithium manganese dioxide. If the battery pack
is not handled properly, there is risk of fire and burns.
·Do not disassemble, crush, puncture, short external contacts, or dispose of
the battery in fire or water.
·Do not expose the battery to temperatures higher than 60°C (140°F).
·The system battery is not replaceable. If the battery is replaced by an
incorrect type, there is danger of explosion. Replace the battery only with a
spare designated for your product.
·Do not attempt to recharge the battery.
·Dispose of used batteries according to the instructions of the manufacturer.
Do not dispose of batteries with the general household waste. To forward
them to recycling or proper disposal, use the public collection system or return
them to TYAN, your authorized TYAN partner, or their agents.
Equipment Modifications
· Do not make mechanical modifications to the system. TYAN is not
responsible for the regulatory compliance of TYAN equipment that has been
modified.
Equipment Repairs and Servicing
· The installation of internal options and routine maintenance and service of
this product should be performed by individuals who are knowledgeable about
the procedures, precautions, and hazards associated with equipment
containing hazardous energy levels.
·Do not exceed the level of repair specified in the procedures in the product
documentation. Improper repairs can create a safety hazard.
·Allow the product to cool before removing covers and touching internal

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components.
·Remove all watches, rings, or loose jewelry when working before removing
covers and touching internal components.
·Do not use conductive tools that could bridge live parts.
·Use gloves when you remove or replace system components; they can
become hot to the touch.
·If the product sustains damage requiring service, disconnect the product
from the AC electrical outlet and refer servicing to an authorized service
provider. Examples of damage requiring service include:
– The power cord, extension cord, or plug has been damaged.
– Liquid has been spilled on the product or an object has fallen into the
product.
–The product has been exposed to rain or water.
– The product has been dropped or damaged.
– The product does not operate normally when you follow the operating
instructions.
·Retain all screws or other fasteners when removing access cover(s). Upon
completion of accessing inside the product, refasten access cover with original
screws or fasteners.

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Table of Contents
Chapter 1: Overview....................................................................... 15
1.1 About the TYAN TN70A-B8026.............................................. 15
1.2 Product Models....................................................................... 15
1.3 Features.................................................................................. 16
1.4 Standard Parts List ................................................................. 37
1.4.1 Box Contents ................................................................... 37
1.4.2 Accessories ..................................................................... 38
1.5 About the Product................................................................... 39
1.5.1 System Front View .......................................................... 39
1.5.2 System Rear View ........................................................... 41
1.5.4 System Top View............................................................. 44
1.5.5 Chassis Dimensions ........................................................ 46
Chapter 2: Setting Up..................................................................... 47
2.0.1 Before you Begin ............................................................. 47
2.0.2 Work Area........................................................................ 47
2.0.3 Tools ................................................................................ 47
2.0.4 Precautions...................................................................... 48
2.1 Installing Motherboard Components ...................................... 49
2.1.1 Removing the Chassis Cover.......................................... 49
2.1.2 Replacing the Chassis Cover .......................................... 51
2.1.3 Removing the Riser Card Brackets ................................. 52
2.1.4 Removing the Air Duct..................................................... 54
2.1.5 Installing the CPU and Heatsink...................................... 55
2.1.6 Installing the Memory ...................................................... 58
2.1.7 Installing Hard Drives ...................................................... 62
2.1.8 Installing the PCI-E Cards ............................................... 67
2.2 Rack Mounting........................................................................ 68
2.2.1 Installing the Server in a Rack......................................... 68
2.2.2 Installing the inner Rails to the Chassis .......................... 69
2.2.3 Installing the Outer Rails to the Rack .............................. 72
2.2.4 Removing the Server from a Rack .................................. 74
Chapter 3: Replacing Pre-Installed Components ........................ 75
3.1 Introduction............................................................................. 75
3.2 Disassembly Flowchart........................................................... 75
3.3 Replacing Motherboard Components..................................... 76
3.4 Removing the Cover............................................................... 76
3.5 Replacing PCI-E Riser Cards................................................. 76
3.5.1 Riser Card Features ........................................................ 77
3.6 Replacing the Front Panel Board ........................................... 79

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3.6.1 Front Panel Board Features ............................................ 81
3.6.2 FPB LED and Connector Pin Definition........................... 82
3.7 Replacing the USB Board....................................................... 83
3.7.1 USB Board Features ....................................................... 85
3.7.2 Connector Pin Definition.................................................. 85
3.8 Replacing the Power Distribution Board................................. 86
3.8.1 Power Distribution Board Features ................................. 87
3.9 Replacing the System Fan ..................................................... 88
3.10 Replacing the Fan Board........................................................ 90
3.10.1 Fan Board Features ........................................................ 91
3.10.2 Fan Board LED Definitions.............................................. 91
3.10.3 Connector Pin Definitions................................................ 92
3.11 Replacing the HDD Backplane Board .................................... 93
3.11.1 HDD BP Board Features ................................................. 96
3.12 Replacing the Power Supply ................................................ 100
3.13 Disconnecting All Motherboard Cables ................................ 101
3.14 Removing the Motherboard.................................................. 102
Appendix I: Cable Connection Tables ........................................ 103
Appendix II: Fan and Temp Sensors .......................................... 109
Appendix III: FRU Parts Table ..................................................... 113
Appendix IV: Technical Support ................................................. 115

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Chapter 1: Overview
1.1 About the TYAN TN70A-B8026
Congratulations on your purchase of the TYAN®TN70A-B8026, a highly optimized
rack-mountable barebone system. The TN70A-B8026 is designed to support single
AMD®EPYC™ 7001/7002 Series Processor and up to 1024GB RDIMM/LRDIMM of
DDR4 ECC RDIMM/LRDIMM 2666/2400 memory, providing a rich feature set and
incredible performance. Leveraging advanced technology from AMD®, the
TN70A-B8026 server system is capable of offering scalable 32 and 64-bit computing,
high bandwidth memory design, and lightning-fast PCI-E bus implementation. The
TN70A-B8026 not only empowers your company in nowadays IT demand but also
offers a smooth path for future application usage.
TYAN®also offers the TN70A-B8026 in a version that can support up to twenty-four
(24) front hot-swap 2.5” and two (2) internal fixed 2.5” hard drives. The
TN70A-B8026 uses TYAN’s latest chassis featuring a robust structure and a solid
mechanical enclosure. All of this provides TN70A-B8026 the power and flexibility to
meet the needs of nowadays server application.
1.2 Product Models
The system board within the Tyan Barebone is defined by the following models:
B8026T70AV16E8HR: AMD-based platform
B8026T70AE24HR: AMD-based platform
B8026T70AV26HR-LE: AMD-based platform
B8026T70AV18E8HR: AMD-based platform
B8026T70AV2E24HR: AMD-based platform
B8026T70AV8E16HR: AMD-based platform


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1.3 Features
TN70A-B8026 (B8026T70AE24HR)
System
Form Factor 2U Rackmount
Chassis Model TN70A
Dimension (D x W x H) 27.56" x 17.72" x 3.43" (700 x 450 x
87mm)
Motherboard S8026GM2NRE
Gross Weight 30 kg (66 lbs)
Net weight 19 kg (42 lbs)
Front Panel
Buttons (1) RST, (1) ID, (1) PWR w/ LED
LEDs (1) ID, (1) IPMI/Warning
I/O Ports (2) USB 2.0 ports
External Drive Bay
Type / Q'ty 2.5" Hot-Swap NVMe, (24)
HDD backplane
support SAS 12Gb/s, SATA 6Gb/s, NVMe
Supported HDD
Interface (24) 2.5" NVMe
Internal Drive Bay
Type / Q'ty (2) 2.5" fixed HDD/SSD
Supported HDD
Interface (2) SATA 6Gb/s
System Cooling
Configuration FAN (8) 6cm fans
Power Supply
Type RPSU
Input Range AC 100-127V/10A, AC
200-240V/5A
Frequency 50-60 Hz
Output Watts 770 Watts
Efficiency 80 plus Platinum
Redundancy 1+1
Processor
Socket Type / Q'ty AMD Socket SP3/ (1)
Supported CPU Series (1) AMD EPYC™ 7001/7002 Series
Processor
Average CPU Power
(ACP) wattage Max up to 180W
Memory
Supported DIMM Qty (16) DIMM slots
DIMM Type / Speed DDR4 ECC RDIMM/LRDIMM
2666/2400

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Capacity Up to 1,024GB RDIMM/LRDIMM
Memory channel 8 Channels
Memory voltage 1.2V
Notification
LRDIMM is not supported when AMD
EPYC™ 7002 Series Processors
deployed in all configurations.
Please contact Tyan Technical
Support for more details.
Expansion Slots
PCI-E
(2) PCI-E Gen3 x8 slots ( w/ x0 link
or x8 link), (2) PCI-E Gen3 x16 slot
( w/ x16 link or x8 link), *Without
using OCP 2.0 Mezz card, please
contact with Tyan technical support
for details.
Pre-install TYAN
Riser Card
M7106-L24-3F, M7106-R24-3F, (2)
M2093 w/ (4) PCI-E x8 SFF-8611
OCuLink connectors for (8) NVMe
ports
Others: (1) PCI-E Gen3 x16 OCP 2.0 slots
(conn.A+conn.B)
LAN
Port Q'ty (2) GbE ports, (1) PHY dedicated
for IPMI
Controller Broadcom BCM5720
PHY Realtek RTL8211E
Storage
SATA
Connector (2) SATA
Controller Direct from AMD EPYC CPU
Speed 6Gb/s
RAID N/A
Notification
The rear 2 SATA SSDs/HDDs
are not available when AMD
EPYC™ 7002 Series
Processors deployed in all
configurations. Please
contact Tyan Technical
Support for more details.
Connector
(OCuLink)
(2) M.2 connectors
(22110/2280/2260/2242) by
PCI-E interface
NVMe Connector
(M.2)
(8) NVMe ports default from
2x M2093 card / (8) PCI-E x8
SFF-8612 OCuLink
connectors for (16) NVMe
ports

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Notification
2 onboard M.2 connectors
shall support NVMe only
when AMD EPYC™ 7002
Series Processors deployed
in all configurations. Please
contact Tyan Technical
Support for more details.
Graphic
Connector type D-Sub 15-pin
Resolution Up to 1920x1200
Chipset Aspeed AST2500
I/O Ports
USB
(3) USB3.0 ports (2 at rear, 1
TYPE-A)/ (2) USB2.0 ports (2 at
front)
COM (1) DB-9 port (COM1) + (1) header
(COM2)
VGA (1) D-Sub 15-pin port
RJ-45 (2) GbE ports, (1) PHY dedicated for
IPMI
System Monitoring
Chipset Aspeed AST2500
Temperature Monitors temperature for CPU &
memory & system environment
Voltage Monitors voltage for CPU, memory,
chipset & power supply
LED
Over temperature warning
indicator, Fan & PSU fail LED
indicator
Others Watchdog timer support
Server Management
Onboard Chipset Onboard Aspeed AST2500
AST2500 iKVM
Feature
IPMI 2.0 compliant baseboard
management controller (BMC),
Supports storage over IP and remote
platform-flash, USB 2.0 virtual hub
AST2500 IPMI
Feature
24-bit high quality video
compression, 10/100/1000 Mb/s
MAC interface
BIOS
Brand / ROM size AMI, 32MB
Feature
Hardware Monitor, Boot from USB
device/PXE via LAN/Storage, User
Configurable FAN PWM Duty Cycle,
Console Redirection, ACPI 6.1,
SMBIOS 3.1/PnP/Wake on LAN,
ACPI sleeping states S5

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Operating System OS supported list Please refer to our AVL support
lists.
Regulation
FCC (DoC) Class A
CE (DoC) Class A
VCCI Class A
CB/LVD Yes
RCM Class A
Operating Environment
Operating Temp. 10° C ~ 35° C (50° F~ 95° F)
Non-operating Temp. - 40° C ~ 70° C (-40° F ~ 158° F)
In/Non-operating
Humidity 90%, non-condensing at 35° C
RoHS RoHS 6/6 Compliant Yes
Package Contains
Manual (1) Quick Installation Guide
Installation CD (1) TYAN Device Driver CD
Barebone (1) TN70A-B8026 Barebone
TN70A-B8026 (B8026T70AV16E8HR)
System
Form Factor 2U Rackmount
Chassis Model TN70A
Dimension (D x W x H) 27.56" x 17.72" x 3.43" (700 x 450 x
87mm)
Motherboard S8026GM2NRE
Gross Weight 30 kg (66 lbs)
Net weight 19 kg (42 lbs)
Front Panel
Buttons (1) RST, (1) ID, (1) PWR w/ LED
LEDs (1) ID, (1) IPMI/Warning
I/O Ports (2) USB 2.0 ports
External Drive Bay
Type / Q'ty 2.5" Hot-Swap SSD/HDD + NVMe,
(16) + (8)
HDD backplane
support SAS 12Gb/s, SATA 6Gb/s, NVMe
Supported HDD
Interface
(16) 2.5" SATA 6Gb/s + (8) 2.5"
NVMe
Internal Drive Bay Type / Q'ty (2) 2.5" fixed HDD/SSD

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Supported HDD
Interface (2) SATA 6Gb/s
System Cooling
Configuration FAN (8) 6cm fans
Power Supply
Type RPSU
Input Range AC 100-127V/10A, AC
200-240V/5A
Frequency 50-60 Hz
Output Watts 770 Watts
Efficiency 80 plus Platinum
Redundancy 1+1
Processor
Socket Type / Q'ty AMD Socket SP3/ (1)
Supported CPU Series (1) AMD EPYC™ 7001/7002 Series
Processor
Average CPU Power
(ACP) wattage Max up to 180W
Memory
Supported DIMM
Qty (16) DIMM slots
DIMM Type / Speed DDR4 ECC RDIMM/LRDIMM
2666/2400
Capacity Up to 1,024GB RDIMM/LRDIMM
Memory channel 8 Channels
Memory voltage 1.2V
Notification
LRDIMM is not supported when AMD
EPYC™ 7002 Series Processors
deployed in all configurations. Please
contact Tyan Technical Support for
more details.
Expansion Slots
PCI-E
(2) PCI-E Gen3 x8 slots, (2) PCI-E
Gen3 x8 slots ( w/ x0 link or x8 link),
(2) PCI-E Gen3 x16 slot ( w/ x16 link
or x8 link), *Without using OCP 2.0
Mezz card, please contact with Tyan
technical support for details.
Pre-install TYAN
Riser Card M7106-L24-3F, M7106-R24-3F
Others: (1) PCI-E Gen3 x16 OCP 2.0 slots
(conn.A+conn.B)
LAN
Port Q'ty (2) GbE ports, (1) PHY dedicated
for IPMI
Controller Broadcom BCM5720