Supero A+ 122TG-H6IBQRF User manual

®
SUPER
USER'S MANUAL
Revision 1.0c
A+ SERVER
2122TG-H6IBQRF
2122TG-H6RF

The information in this User’s Manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
makes no commitment to update or to keep current the information in this manual, or to notify any
person or organization of the updates. Please Note: For the most up-to-date version of this
manual, please see our web site at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product
described in this manual at any time and without notice. This product, including software and
documentation, is the property of Supermicro and/or its licensors, and is supplied only under a
license. Any use or reproduction of this product is not allowed, except as expressly permitted by
the terms of said license.
IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO
USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. IN PARTICULAR, SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY
HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE PRODUCT, INCLUDING THE
COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH
HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between manufacturer and customer shall be governed by the laws of Santa
Clara County in the State of California, USA. The State of California, County of Santa Clara shall
be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all
claims will not exceed the price paid for the hardware product.
FCC Statement: 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 manufacturer’s instruction manual, may cause harmful
interference with radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference, in which case you will be required to correct the interference at your
own expense.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”
WARNING: Handling of lead solder materials used in this
product may expose you to lead, a chemical known to
the State of California to cause birth defects and other
reproductive harm.
Manual Revision 1.0c
Release Date: March 11, 2014
Unless you request and receive written permission from Super Micro Computer, Inc., you may not
copy any part of this document.
Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or mark
holders.
Copyright © 2014 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America

Preface
iii
Preface
About This Manual
ThismanualiswrittenforprofessionalsystemintegratorsandPCtechnicians.Itprovides
information for the installation and use of the A+ Server 2122TG-H6IBQRF/H6RF.
Installation and maintainance should be performed by experienced technicians only.
The A+ Server 2122TG-H6IBQRF/H6RF is a high-end server based on
the SC217HQ-R1620BP 2U rackmount chassis and the dual processor
H8DGT-HLIBQF/HLF serverboards. The 2122TG-H6IBQRF server uses the
H8DGT-HLIBQF serverboard, whereas the 2122TG-H6RF server uses the
H8DGT-HLF serverboard. The only difference between the two serverboards is
that the H8DGT-HLIBQF contains an InniBand™ connector and the H8DGT-HLF
does not.
Manual Organization
Chapter 1: Introduction
The rst chapter provides a checklist of the main components included with
the server system and describes the main features of the H8DGT-HLIBQF/HLF
serverboard and the SC217HQ-R1620BP chassis.
Chapter 2: Server Installation
This chapter describes the steps necessary to install the A+ Server
2122TG-H6IBQRF/H6RF into a rack and check out the server conguration prior
to powering up the system. If your server was ordered without processor and
memory components, this chapter will refer you to the appropriate sections of the
manual for their installation.
Chapter 3: System Interface
Refer here for details on the system interface, which includes the functions and
information provided by the control panel on the chassis as well as other LEDs
located throughout the system.
Chapter 4: Warning Statements for AC Systems
You should thoroughly familiarize yourself with this chapter for a general overview
of safety precautions that should be followed when installing and servicing the
A+ Server 2122TG-H6IBQRF/H6RF.

A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
iv
Chapter 5: Advanced Serverboard Setup
Chapter 5 provides detailed information on the H8DGT-HLIBQF/HLF serverboard,
including the locations and functions of connections, headers and jumpers. Refer
to this chapter when adding or removing processors or main memory and when
reconguring the serverboard.
Chapter 6: Advanced Chassis Setup
Refer to Chapter 6 for detailed information on the SC217HQ-R1620BP server
chassis. You should follow the procedures given in this chapter when installing,
removing or reconguring SAS/SATA or peripheral drives and when replacing
system power supply units and cooling fans.
Chapter 7: BIOS
The BIOS chapter includes an introduction to BIOS and provides detailed information
on running the CMOS Setup Utility.
Appendix A: BIOS Error Beep Codes
Appendix B: System Specications

Preface
v
Table of Contents
Chapter 1 Introduction
1-1 Overview ......................................................................................................... 1-1
1-2 Serverboard Features ..................................................................................... 1-2
Processors ...................................................................................................... 1-2
Memory ........................................................................................................... 1-2
SAS ................................................................................................................ 1-2
PCI Expansion Slots ....................................................................................... 1-2
Onboard Controllers/Ports .............................................................................. 1-2
Graphics Controller ......................................................................................... 1-3
InniBand ........................................................................................................ 1-3
Other Features................................................................................................ 1-3
1-3 Server Chassis Features ................................................................................ 1-3
System Power................................................................................................. 1-3
SAS Subsystem .............................................................................................. 1-3
Front Control Panel......................................................................................... 1-4
Rear I/O........................................................................................................... 1-4
Cooling System............................................................................................... 1-4
Air Shrouds ..................................................................................................... 1-4
Mounting Rails ................................................................................................ 1-4
1-4 Contacting Supermicro.................................................................................... 1-6
1-5 2U Twin2: System Notes ................................................................................. 1-7
Nodes.............................................................................................................. 1-7
System Power................................................................................................. 1-7
SAS/SATA Backplane/Drives .......................................................................... 1-7
Chapter 2 Server Installation
2-1 Overview ......................................................................................................... 2-1
2-2 Unpacking the System .................................................................................... 2-1
2-3 Preparing for Setup......................................................................................... 2-1
Choosing a Setup Location............................................................................. 2-1
Rack Precautions............................................................................................ 2-2
Server Precautions.......................................................................................... 2-2
Rack Mounting Considerations ....................................................................... 2-3
Ambient Operating Temperature ................................................................ 2-3
Reduced Airow ......................................................................................... 2-3
Mechanical Loading ................................................................................... 2-3
Circuit Overloading..................................................................................... 2-3
Reliable Ground ......................................................................................... 2-3

A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
vi
2-4 Installing the System into a Rack ................................................................... 2-4
Identifying the Sections of the Rack Rails...................................................... 2-4
Locking Tabs ................................................................................................... 2-5
Releasing the Inner Rail ................................................................................. 2-5
Installing The Inner Rails on the Chassis....................................................... 2-6
Installing the Outer Rails on the Rack............................................................ 2-7
Standard Chassis Installation ......................................................................... 2-8
2-5 Checking the Serverboard Setup.................................................................... 2-9
2-6 Checking the Drive Bay Setup...................................................................... 2-10
2-7 Checking the Airow ......................................................................................2-11
2-8 Installation Complete......................................................................................2-11
Chapter 3 System Interface
3-1 Overview ......................................................................................................... 3-1
3-2 Control Panel Button....................................................................................... 3-2
3-3 Control Panel LEDs ........................................................................................ 3-2
3-4 Drive Carrier LEDs.......................................................................................... 3-3
SAS/SATA Drives ....................................................................................... 3-3
SCSI Drives................................................................................................ 3-3
Chapter 4 System Safety
4-1 Electrical Safety Precautions .......................................................................... 4-1
4-2 General Safety Precautions ............................................................................ 4-2
4-3 ESD Precautions............................................................................................. 4-3
4-4 Operating Precautions .................................................................................... 4-4
Chapter 5 Advanced Serverboard Setup
5-1 Handling the Serverboard ............................................................................... 5-1
Precautions ..................................................................................................... 5-1
Unpacking ....................................................................................................... 5-1
5-2 Connecting Cables.......................................................................................... 5-2
Connecting Data Cables ................................................................................. 5-2
5-3 I/O Port Connections....................................................................................... 5-2
5-4 Processor and Heatsink Installation................................................................ 5-3
Installing a CPU Heatsink ............................................................................... 5-5
Removing the Heatsink................................................................................... 5-6
5-5 Installing Memory............................................................................................ 5-7
DIMM Module Population Conguration .................................................... 5-8
5-6 PCI Expansion Cards...................................................................................... 5-9
5-7 Serverboard Details ...................................................................................... 5-10
H8DGT-HLIBQF/HLF Quick Reference .........................................................5-11

Preface
vii
5-8 Connector Denitions ................................................................................... 5-12
5-9 Jumper Settings ............................................................................................ 5-15
Explanation of Jumpers ................................................................................ 5-15
5-10 Onboard Indicators........................................................................................ 5-17
5-11 Enabling SATA RAID..................................................................................... 5-19
Serial ATA (SATA).......................................................................................... 5-19
Installing the OS/SATA Driver ....................................................................... 5-19
Building a Driver Diskette......................................................................... 5-19
Enabling SATA RAID in the BIOS................................................................. 5-20
Using the Adaptec RAID Utility ..................................................................... 5-21
Installing the RAID Driver During OS Installation......................................... 5-21
5-12 Installing Drivers............................................................................................ 5-22
Supero Doctor III........................................................................................... 5-23
5-13 Serverboard Battery...................................................................................... 5-24
Chapter 6 Advanced Chassis Setup
6-1 Static-Sensitive Devices.................................................................................. 6-1
Precautions ..................................................................................................... 6-1
Unpacking ....................................................................................................... 6-1
6-2 Control Panel .................................................................................................. 6-2
6-3 Chassis Cover................................................................................................. 6-3
6-4 Air Shrouds ..................................................................................................... 6-4
6-6 System Fans ................................................................................................... 6-5
Optional Fan Congurations ........................................................................... 6-5
6-7 Removing and Installing the Backplane.......................................................... 6-8
Removing the Backplane ................................................................................ 6-8
Installing the Backplane................................................................................ 6-10
6-8 Installing the Motherboard .............................................................................6-11
I/O Shield .......................................................................................................6-11
Permanent and Optional Standoffs................................................................6-11
6-9 Adapter Card Replacement........................................................................... 6-13
Add-on Card/Expansion Slot Setup .............................................................. 6-14
6-10 Drive Bay Installation/Removal ..................................................................... 6-16
Accessing the Drive Bays ............................................................................. 6-16
6-11 Power Supply................................................................................................ 6-20
Power Supply Replacement.......................................................................... 6-20
Power Supply Replacement.......................................................................... 6-20
Installation Complete..................................................................................... 6-21

A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
viii
Chapter 7 BIOS
7-1 Introduction...................................................................................................... 7-1
Starting BIOS Setup Utility.............................................................................. 7-1
How To Change the Conguration Data ......................................................... 7-1
Starting the Setup Utility ................................................................................. 7-2
7-2 Main Setup...................................................................................................... 7-2
7-3 Advanced Setup Congurations...................................................................... 7-3
7-3 Security Menu ............................................................................................... 7-15
7-4 Boot Menu..................................................................................................... 7-15
7-5 Exit Menu ...................................................................................................... 7-16
Appendix A BIOS Error Beep Codes
Appendix B System Specications

Chapter 1
Introduction
1-1 Overview
The A+ SERVER 2122TG-H6IBQRF/H6RF is a high-end server comprised of the
SC217HQ-R1620BP 2U server chassis and four distinct computing nodes each
with the H8DGT-HLIBQF/HLF dual processor serverboard. Please refer to our web
site for information on operating systems that have been certied for use with the
system (www.supermicro.com).
In addition to the serverboard and chassis, various hardware components have
been included with the 2122TG-H6IBQRF/H6RF, as listed below:
•Four (4) 80x80x38mm 4-pin PWM chassis fans (FAN-0129L4)
•Four (4) Air shrouds for H8DGT-HL serverboards (MCP-310-82713-0B)
•Eight (8) 1U Passive CPU heatsinks (SNK-P0037P)
•SAS/SATA
One (1) SAS hard disk drive (HDD) 2U twin backplane (BPN-SAS-217HQ)
Four (4) SAS2 adapter cards (BPN-ADP-SAS2-H6IR-0-P)
Twenty-four (24) 2.5" hot swap Hard Disk Drive trays (MCP-220-00047-0B)
•Four (4) Riser Cards (RSC-R1U-E16R-0-P)
•One (1) Rack mount rail kit (MCP-290-00053-0N)
Note: For your system to work properly, please follow the links below to download
all necessary drivers/utilities and the user’s manual for your server.
•Product manuals: http://www.supermicro.com/support/manuals/
•Product drivers and utilities: ftp://ftp.supermicro.com
•Product safety information:
http://supermicro.com/about/policies/safety_information.cfm
With questions, contact [email protected].
Chapter 1: Introduction
1-1

1-2
A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
1-2 Serverboard Features
At the heart of the A+ Server 2122TG-H6IBQRF/H6RF lies the H8DGT-HLIBQF/HLF,
a dual processor serverboard based on the AMD SR5690/SP5100 chipset and
designed to provide maximum performance. Up to four of these serverboards can
be mounted in the SC217 chassis.
The sections below cover the main features of the H8DGT-HLIBQF/HLF serverboard
(see Figure 1-1 for a block diagram of the chipset).
Processors
The H8DGT-HLIBQF/HLF supports single or dual AMD Opteron 6000 series
processors (AMD Socket G34 type). Please refer to the serverboard description
pages on our web site for a complete listing of supported processors (www.
supermicro.com).
Memory
Each H8DGT-HLIBQF/HLF serverboard has eight (8) single/dual/tri/quad
channel DIMM slots that can support up to 64 GB of ECC/Non-ECC UDIMM or
up to 256 GB of ECC RDIMM DDR3-1600/1333/1066 MHz speed SDRAM in
1 GB, 2 GB, 4 GB, 8 GB or 16 GB sizes of 1.5V or 1.35V voltages.
SAS
A LSI®SAS2108 SAS2 controller is integrated into the BPN-ADP-SAS2-H6IR-O-P
backplane to provide an six port 6 Gb/s SAS2 (Serial Attached SCSI) subsystem,
which is RAID 0, 1, 5, 6 and 10 supported. The SAS drives are hot-swappable units.
Note: The operating system you use must have RAID support to enable the hotswap
capability and RAID function of the SAS drives
PCI Expansion Slots
Each H8DGT-HLIBQF/HLF serverboard has:
•One (1) PCI-Express x16 Gen. 2 slot
•One (1) PCI-Express x8 in x4 Gen. 2 slot (for SAS adapter cards)
Onboard Controllers/Ports
Onboard I/O back panel ports include one COM port, a VGA port, two Gb LAN
ports, a dedicated IPMI LAN port, two USB ports and one single QSFP Mellonox
Connect-X2 InniBand™ connector (2122TG-H6IBQRF only). Two USB headers
and one USB Type-A port are also included on the motherboard.

1-3
Chapter 1: Introduction
Graphics Controller
The H8DGT-HLIBQF/HLF features an integrated Matrox®G200 graphics controller
with 16 MB DDR2 memory.
InniBand
The 2122TG-H6IBQRF server includes a QDR (quad data rate) speed InniBand
QSFP connector. InniBand is a scalable serial communications link intended for
connecting processors with high-speed peripherals.
Other Features
Other onboard features that promote system health include voltage monitors,
auto-switching voltage regulators, chassis and CPU overheat sensors and virus
protection.
1-3 Server Chassis Features
The following is a general outline of the main features of the SC217 server chassis.
System Power
Each SC217 chassis model includes a high-efciency 94-plus Platinum certied
power supply, rated at 1620 Watts plus one redundant backup power supply.
In the unlikely event your power supply fails, replacement is simple and can be
accomplished without tools.
Note: Depending on the input power and certain workloads, conguration power
supply redundancy may not always be available.
SAS Subsystem
The SC217 supports up to twenty-four (24) 2.5" hot-swap SAS/SATA drives in trays
(6 for each node). These drives are hot-swappable units and are connected to a
backplane that provides power and control.
Note: The operating system you use must have RAID support to enable the hot-
swap capability of the drives.

1-4
A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
Front Control Panel
SC217 models include four front panels on the handles of the chassis which control
each of the systems. Each control panel on the A+ Server 2122TG-H6IBQRF/H6RF
provides you with system monitoring and control for one server node. LEDs indicate
system power, UID, HDD activity, network activity, system status and power supply
failure. A main power button and a UID button are also included.
I/O Backplane
The SAS217HQ I/O backplane provides a total of 24 2.5” SATA/SAS HDDs, power
button, UID button and LEDs for each node.
Rear I/O
Each computing node provides a low-prole add-on card slot, a COM port, a VGA
port, two USB 2.0 ports, one IPMI Ethernet port, two gigabit Ethernet ports, and
one Inniband port per node (2122TG-H6IBQRF only).
Cooling System
The chassis accepts four system fans powered from the backplane. When Node A
and/or Node B are powered on, both fans on the left of the chassis will run. When
Node C and/or Node D are powered on, both fans on the right of the chassis will run.
Air Shrouds
The chassis includes four mylar air shrouds that direct the airow where cooling is
needed on each serverboard. Always use the air shroud included with your chassis
on each serverboard.
Mounting Rails
The includes a set of quick-release rails, and can be placed in a rack for secure
storage and use. To setup your rack, follow the instructions included in this manual.

1-5
Chapter 1: Introduction
Figure 1-1. AMD SR5690/SP5100 Chipset:
System Block Diagram
Note: This is a general block diagram. Please see Chapter 5 for details.
BMC
WPCM450-R
PCI
DDR2 SDRAM
64Mb X16bit
PSU I2C
IPMB
VGA
FE PHY
RTL8201N
SIO
W83527
LPC
HWM
W83795G
COM2
COM1
Clock Gen
SPI Flash
INTEL
KAWELA
RJ45
RJ45
PCI-E GEN2 X16
Slot1
PCI-E GEN2 X8
Mellanox
Connect-X2
Slot2
PCI-E GEN2 X4
RJ45 USB x5
SP5100
SMBus
SATA x6
PCI-E GEN2 X8
SR5690
A-Link
HT3 Link
16x16-5.2GT/s
DIMM 1A
DIMM 2A
DIMM 3A
DIMM 4A
DIMM 1A
DIMM 2A
DIMM 3A
DIMM 4A
AMD
Socket G34
CPU2
HT3 Link
(8+8)x(8+8)-6.4GT/s
HT3 Link
(8+8)x(8+8)-6.4GT/s
HT3 Link
(8+8)x(8+8)-6.4GT/s
AMD
Socket G34
CPU1
RMII

1-6
A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
1-4 Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
Web Site: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
[email protected] (Customer Support)
Web Site: www.supermicro.com
Asia-Pacic
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235
Taiwan (R.O.C)
Tel: [phone]
Fax: [phone]
Email: [email protected]
Tel: [phone]
Web Site: www.supermicro.com.tw

1-7
Chapter 1: Introduction
1-5 2U Twin2: System Notes
As a 2U Twin2 conguration, the 2122TG-H6IBQRF/H6RF is a unique server system.
With four system boards incorporated into a single chassis acting as four separate
nodes, there are several points you should keep in mind.
Nodes
Each of the four serverboards act as a separate node in the system. As independant
nodes, each may be powered off and on without affecting the others. In addition,
each node is a hot-swappable unit that may be removed from the rear of the chassis.
The nodes are connected to the server backplane by means of an adapter card.
Note: A guide pin is located between the upper and lower nodes on the inner chassis
wall. This guide pin also acts as a “stop” when a node is fully installed. If too much
force is used when inserting a node this pin may break off. Take care to slowly slide
a node in until you hear the “click” of the locking tab seating itself.
System Power
A single 1620 Watts power supply can be used to provide the power for all four
serverboards. Each serverboard however, can be shut down independently of the
other with the power button on its own control panel. As a default, the A+ Server
2122TG-H6IBQRF/H6RF comes with a second power supply module for power
redundancy.
Note: Redundant power availability will vary by conguration.
SAS/SATA Backplane/Drives
As a system, the 2122TG-H6IBQRF/H6RF supports the use of twenty-four (24)
SAS/SATA drives. A single SAS/SATA backplane works to apply system-based
control for power and fan speed functions, yet at the same time logically connects
a set of six SAS/SATA drives to each serverboard. Consequently, RAID setup is
limited to a six-drive scheme (RAID cannot be spread across all twenty-four drives).
See the Drive Bay Installation/Removal section in Chapter 6 for the logical hard
drive and node conguration.

1-8
A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
Notes

Chapter 2: Server Installation
2-1
Chapter 2
Server Installation
2-1 Overview
This chapter provides a quick setup checklist to get your A+ Server
2122TG-H6IBQRF/H6RF up and running. Following these steps in the order given
should enable you to have the system operational within a minimum amount of time.
This quick setup assumes that your system has come to you with the processors
and memory preinstalled. If your system is not already fully integrated with a
serverboard, processors, system memory etc., please turn to the chapter or section
noted in each step for details on installing specic components.
2-2 Unpacking the System
You should inspect the box the A+ Server 2122TG-H6IBQRF/H6RF was shipped
in and note if it was damaged in any way. If the server itself shows damage you
should le a damage claim with the carrier who delivered it.
Decide on a suitable location for the rack unit that will hold the A+ Server
2122TG-H6IBQRF/H6RF. It should be situated in a clean, dust-free area that is
well ventilated. Avoid areas where heat, electrical noise and electromagnetic elds
are generated. You will also need it placed near a grounded power outlet. Read the
Rack and Server Precautions in the next section.
2-3 Preparing for Setup
The box the A+ Server 2122TG-H6IBQRF/H6RF was shipped in should include two
sets of rail assemblies, two rail mounting brackets and the mounting screws you
will need to install the system into the rack. Follow the steps in the order given to
complete the installation process in a minimum amount of time. Please read this
section in its entirety before you begin the installation procedure outlined in the
sections that follow.
Choosing a Setup Location
•Leave enough clearance in front of the rack to enable you to open the front door
completely (~25 inches) and approximately 30 inches of clearance in the back
of the rack to allow for sufcient airow and ease in servicing.

2-2
A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
•This product is for installation only in a Restricted Access Location (dedicated
equipment rooms, service closets and the like).
•This product is not suitable for use with visual display work place devices
acccording to §2 of the the German Ordinance for Work with Visual Display Units.
Rack Precautions
Warning: To prevent bodily injury when mounting or servicing this unit in a
rack, you must take special precautions to ensure that the system remains
stable. The following guidelines are provided to ensure your safety:
•This unit should be mounted at the bottom of the rack if it is the only unit in
the rack.
•When mounting this unit in a partially lled rack, load the rack from the bottom
to the top with the heaviest component at the bottom of the rack.
•If the rack is provided with stabilizing devices, install the stabilizers before
mounting or servicing the unit in the rack.
•Ensure that the leveling jacks on the bottom of the rack are fully extended to
the oor with the full weight of the rack resting on them.
•In single rack installation, stabilizers should be attached to the rack. In multiple
rack installations, the racks should be coupled together.
•Always make sure the rack is stable before extending a component from the
rack.
•You should extend only one component at a time. Extending two or more
simultaneously may cause the rack to become unstable.
Server Precautions
•Review the electrical and general safety precautions in Chapter 4.
•Determine the placement of each component in the rack before you install the
rails.
•Install the heaviest server components on the bottom of the rack rst, and then
work up.
•Use a regulating uninterruptible power supply (UPS) to protect the server from
power surges, voltage spikes and to keep your system operating in case of a
power failure.
•Allow any hot plug drives and power supply modules to cool before touching
them.
•Always keep the rack's front door and all panels and components on the servers
closed when not servicing to maintain proper cooling.

Chapter 2: Server Installation
2-3
Rack Mounting Considerations
Ambient Operating Temperature
If installed in a closed or multi-unit rack assembly, the ambient operating
temperature of the rack environment may be greater than the ambient temperature
of the room. Therefore, consideration should be given to installing the equipment
in an environment compatible with the manufacturer’s maximum rated ambient
temperature (Tmra).
Reduced Airow
Equipment should be mounted into a rack so that the amount of airow required
for safe operation is not compromised.
Mechanical Loading
Equipment should be mounted into a rack so that a hazardous condition does not
arise due to uneven mechanical loading.
Circuit Overloading
Consideration should be given to the connection of the equipment to the power
supply circuitry and the effect that any possible overloading of circuits might have
on overcurrent protection and power supply wiring. Appropriate consideration of
equipment nameplate ratings should be used when addressing this concern.
Reliable Ground
A reliable ground must be maintained at all times. To ensure this, the rack
itself should be grounded. Particular attention should be given to power supply
connections other than the direct connections to the branch circuit (i.e. the use of
power strips, etc.).

2-4
A+ SERVER 2122TG-H6IBQRF/H6RF USER'S MANUAL
2-5 Installing the System into a Rack
This section provides information on installing the chassis into a rack unit with the
rails provided. There are a variety of rack units on the market, which may mean
that the assembly procedure will differ slightly from the instructions provided. You
should also refer to the installation instructions that came with the rack unit you are
using. Note: This rail will t a rack between 26.5" and 36.4" deep.
Identifying the Sections of the Rack Rails
The chassis package includes two rail assemblies in the rack mounting kit. Each
assembly consists of three sections: An inner chassis rail which secures directly to
the chassis, an outer rail that secures to the rack, and a middle rail which extends
from the outer rail (see Figure 2-1). These assemblies are specically designed for
the left and right side of the chassis.
Figure 2-1. Identifying the Outer Rail, Middle Rail and Inner Rails
(Left Rail Assembly Shown)
Inner Rail
Rail Assembly
(Shown with Rails
Retracted)
This Side Faces
Outward
Locking Tab
Middle Rail
Outer Rail