Supermicro SUPERSERVER 2028TR-HTR User manual

USER’S MANUAL
1.0b
SUPERSERVER®
2028TR-HTR
2028TR-HTFR
2028TR-H72R
2028TR-H72FR

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 1.0b
Release Date: May 7, 2015
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 © 2015 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America

iii
Preface
Preface
About This Manual
This manual is written for professional system integrators and PC technicians.
It provides information for the installation and use of the SuperServer
2028TR-HTR/HTFR/H72R/H72FR. Installation and maintainance should be
performed by experienced technicians only.
The SuperServer 2028TR-HTR/HTFR/H72R/H72FR is a high-end server based
on the SC217HQ-R1K68BP 2U rackmount chassis and the dual processor
X10DRT-H/HIBF serverboard. All models have four serverboard nodes with six
hot-swap Hard Disk Drives (HDDs) each per node.
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 X10DRT-H/HIBF serverboard
and the SC217HQ-R1K68BP chassis.
Chapter 2: Server Installation
This chapter describes the steps necessary to install the SuperServer
2028TR-HTR/HTFR/H72R/H72FR 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: Standardized Safety Warnings
You should thoroughly familiarize yourself with this chapter for a general overview
of safety precautions that should be followed when installing and servicing the
SuperServer 2028TR-HTR/HTFR/H72R/H72FR.
Chapter 5: Advanced Serverboard Setup
Chapter 5 provides detailed information on the X10DRT-H/HIBF 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.

SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual
iv
Chapter 6: Advanced Chassis Setup
Refer to Chapter 6 for detailed information on the SC217HQ-R1K68BP server
chassis. You should follow the procedures given in this chapter when installing,
removing or reconguring 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

v
Notes
Preface

vi
Table of Contents
Chapter 1 Introduction
1-1 Overview ......................................................................................................... 1-1
1-2 Serverboard Features ..................................................................................... 1-2
Processor ........................................................................................................ 1-2
Memory ........................................................................................................... 1-2
PCI Expansion Slots ....................................................................................... 1-2
Onboard Controllers/Ports .............................................................................. 1-2
1-3 Server Chassis Features ................................................................................ 1-4
System Power................................................................................................. 1-4
Front Control Panel......................................................................................... 1-4
Cooling System............................................................................................... 1-4
Air Shrouds ..................................................................................................... 1-4
Mounting Rails ................................................................................................ 1-4
1-4 Contacting Supermicro.................................................................................... 1-5
1-6 2U Twin2: System Notes ................................................................................. 1-6
Nodes.............................................................................................................. 1-6
System Power................................................................................................. 1-6
Hard Drive Backplane/Drives.......................................................................... 1-6
Adapter Cards................................................................................................. 1-6
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............................................................................. 2-2
2-4 Warnings and Precautions.............................................................................. 2-2
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
2-5 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
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual

vii
Installing The Inner Rails on the Chassis....................................................... 2-6
Installing the Outer Rails on the Rack............................................................ 2-7
Standard Chassis Installation ......................................................................... 2-8
Chapter 3 System Interface
3-1 Overview ......................................................................................................... 3-1
3-2 Control Panel Button....................................................................................... 3-2
Power .............................................................................................................. 3-2
UID .................................................................................................................. 3-2
3-3 Control Panel LEDs ........................................................................................ 3-2
Alert................................................................................................................. 3-2
NIC .................................................................................................................. 3-3
3-4 Hard Drive Carrier LEDs................................................................................. 3-3
Chapter 4 Standardized Warning Statements for AC Systems
4-1 About Standardized Warning Statements....................................................... 4-1
Warning Denition ........................................................................................... 4-1
Installation Instructions.................................................................................... 4-4
Circuit Breaker ................................................................................................ 4-5
Power Disconnection Warning ........................................................................ 4-6
Equipment Installation..................................................................................... 4-8
Restricted Area................................................................................................ 4-9
Battery Handling............................................................................................ 4-10
Redundant Power Supplies .......................................................................... 4-12
Backplane Voltage ........................................................................................ 4-13
Comply with Local and National Electrical Codes........................................ 4-14
Product Disposal........................................................................................... 4-15
Hot Swap Fan Warning................................................................................. 4-16
Power Cable and AC Adapter ...................................................................... 4-18
Chapter 5 Advanced Serverboard Setup
5-1 Handling the Serverboard ............................................................................... 5-1
Precautions ..................................................................................................... 5-1
5-2 Connecting Cables.......................................................................................... 5-2
Connecting Data Cables ................................................................................. 5-2
5-3 Rear I/O Ports................................................................................................. 5-3
5-4 Processor and Heatsink Installation................................................................ 5-4
Installing a Passive CPU Heatsink ................................................................. 5-7
Removing the Heatsink................................................................................... 5-8
5-5 Installing Memory............................................................................................ 5-9
Memory Support.............................................................................................. 5-9
5-6 Adding PCI Expansion Cards ........................................................................5-11
Table of Contents

viii
5-7 Serverboard Details ...................................................................................... 5-12
X10DRT-H/HIBF Quick Reference................................................................ 5-12
5-8 Connector Denitions.................................................................................... 5-14
5-9 Jumper Settings ............................................................................................ 5-17
Explanation of Jumpers ................................................................................ 5-17
5-10 Onboard Indicators........................................................................................ 5-20
5-11 PCI-Express and SATA Connections ............................................................ 5-22
5-12 Installing Software......................................................................................... 5-23
SuperDoctor® 5 ............................................................................................ 5-24
5-13 Onboard Battery............................................................................................ 5-25
Chapter 6 Advanced Chassis Setup
6-1 Static-Sensitive Devices.................................................................................. 6-1
Precautions ..................................................................................................... 6-1
6-2 Front and Rear Views ..................................................................................... 6-2
6-3 Chassis Cover................................................................................................. 6-3
6-4 Air Shrouds ..................................................................................................... 6-4
6-5 System Fans ................................................................................................... 6-5
Checking the Airow ....................................................................................... 6-6
6-6 Replacing the Backplane ................................................................................ 6-7
Removing the Backplane ................................................................................ 6-7
Installing the Backplane.................................................................................. 6-9
6-7 Installing the Serverboard ............................................................................. 6-10
I/O Shield ...................................................................................................... 6-10
Permanent and Optional Standoffs............................................................... 6-10
Installing the Adapter Card ........................................................................... 6-12
6-8 Adding Expansion Cards .............................................................................. 6-13
6-9 Installing and Removing Hard Drives ........................................................... 6-15
6-10 Power Supply................................................................................................ 6-18
Power Supply Replacement.......................................................................... 6-18
Chapter 7 BIOS
7-1 Introduction...................................................................................................... 7-1
Starting BIOS Setup Utility.............................................................................. 7-1
How To Change the Conguration Data ......................................................... 7-2
Starting the Setup Utility ................................................................................. 7-2
7-2 Main Setup...................................................................................................... 7-2
7-3 Advanced Setup Congurations...................................................................... 7-4
7-4 Event Logs .................................................................................................... 7-30
7-5 IPMI............................................................................................................... 7-32
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual

7-6 Security Settings ........................................................................................... 7-34
7-7 Boot Settings................................................................................................. 7-35
7-8 Save & Exit ................................................................................................... 7-37
Appendix A BIOS Error Beep Codes
Appendix B System Specications
ix
Table of Contents

x
Notes
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual

Chapter 1
Introduction
1-1 Overview
The SuperServer 2028TR-HTR/HTFR/H72R/H72FR is a high-end server comprised
of two main subsystems: the SC217HQ-R1K68BP 2U server chassis and four
X10DRT-H/HIBF dual processor serverboards. 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 2028TR-HTR/HTFR/H72R/H72FR, as listed below:
•Four 80 x 80 x 38mm cooling fans (FAN-0129L4)
•Four air shrouds (MCP-310-82715-0B)
•Four 1U Passive heatsinks (SNK-P0047PW)
•Four 1U Passive heatsinks (SNK-P0047PS)
•SATA
One 2U Twin2backpane (BPN-SAS-217HQ)
Four HD backplanes (BPN-ADP-S2208L-H6iR)
Twenty-four 2.5" hot swap HDD trays (MCP-220-00047-0B)
•Four riser cards (RSC-R2UTP-E16R)
•One 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 info: http://www.supermicro.com/about/policies/safety_
information.cfm
For support, email [email protected].
Chapter 1: Introduction
1-1

1-2
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual
1-2 Serverboard Features
At the heart of the SuperServer 2028TR-HTR/HTFR/H72R/H72FR lies four
X10DRT-H/HIBF dual processor serverboards based upon the Intel®C612 chipset.
Below are the main features of the X10DRT-H/HIBF. Note that the features on each
board are quadrupled for the server, which includes four nodes.
Processor
Each X10DRT-H/HIBF supports up to two Intel E5-2600 (v3) series
(LGA 2011 Socket R3 type) processors. Please refer to our website for a complete
listing of supported processors (www.supermicro.com).
Memory
Each X10DRT-H/HIBF serverboard has eight DIMM slots that can support up
to 512 GB of ECC RDIMM (Registered)/Load Reduced (LRDIMM)/Non-Volative
(NVDIMM) DDR4-2133/1866/1600 memory. Please refer to our website for a
complete listing of supported memory.
PCI Expansion Slots
The server has one (1) PCI Express 3.0 x16 slot (Slot 1) available for each node
with the use of a riser card.
Onboard Controllers/Ports
Onboard I/O backpanel ports include two Gb LAN ports, a dedicated IPMI LAN port,
a VGA port and two USB 3.0 ports.A Connect-X3 port for InniBand (on), which
supports a single QSFP connector, is provided on the the X10DRT-HIBF only.

1-3
Chapter 1: Introduction
Figure 1-1. Intel C612 Chipset:
System Block Diagram
Note: This is a general block diagram and may not exactly represent
the features on your serverboard. See the previous pages for the
actual specications of your serverboard.
SPI
LAN3
RGMII
Debug Card
FRONT PANELCTRL
FAN SPEED
PCI-E X1 G2
USB 2.0
#12 USB2.0
#1/#2/#4/#5/6/7/8
PCH
6.0 Gb/S
USB 2.0
LPC
USB
#1
#0
SATA
RTL8211E-VB-CG
RJ45
BIOS
SPI
SPI
Temp Sensor
W83773G
TPM HEADER
USB 3.0
USB
BIOS
HEADER
SPI
AST2400
BMC
RMII/NCSI
COM1
Connector
VGA CONN
BMC Boot Flash
DDR3
5 PHASE
145W
1866/2133
1866/2133
DDRIV
P1
P1
P0
VR12.5
P0
#2-1
DDRIV
#1-4
#1-3
#1-2
#1-1
QPI
9.6G
SLOT 1
l
PCI-E X16 G3
DMI2
PCI-E X16
PCI-E X8 G3
PCI-E X8 G3
2IMD2IMD
l
SNB CORE
DDR-IV
SNB CORE
DDR-IV
QPI
9.6G
4GB/s
5 PHASE
145W
VR12.5
#3B #1 #2 #3B#2#3A #1
#2-2
#2-3
#2-4
<=1.758W (average)
2.3W (Peak)
TDP: 5W (SERVER)
Idle:0.45W
5V:1.2A
3.3V:0.1A
3.3 STBY:0.2A
1.05 PCH
1.05 ASW
1.5 PCH
PVCCIO 1.0/0.95
3.3STBY:0.5A
PCI-E X4 G3
i350
LAN1
#3
PCI-E X8 in X4 slot
SXB2
#3A
PCI-E X8 G3
1UPC0UPC
x2 rear port
x2 rear port
PCI-E X8 in X4 slot
Mellanox CX3
IB QDR/FDR
SXB1
S-SATA
I-SATA
6.0 Gb/S
Adaptor Interface
SPI Switch
SPI

1-4
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual
1-3 Server Chassis Features
The following is a general outline of the main features of the SC217HQ server
chassis.
System Power
Each SC217HQ chassis model includes a high-efciency 80-plus Titanium certied
power supply, rated at 1600 watts plus one redundant backup power supply. In
the unlikely event your power supply fails, replacement is simple and can be
accomplished without tools.
Front Control Panel
SC217HQ-R1K68BP chassis includes four front panels on the handles of the
chassis, which control each of the systems. Each control panel on the SuperServer
2028TR-HTR/HTFR/H72R/H72FR provides you with system monitoring and control
for one server node. LEDs indicate system power, HDD activity, network activity,
system overheat and power supply failure. A main power button and a system reset
button are also included.
Cooling System
The SC217HQ chassis accepts four system fans, which are powered from the
backplane.
Air Shrouds
The SC217HQ chassis includes one mylar air shroud per node that directs 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 SC217HQ 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 step-by-step instructions
included in this manual.

1-5
Chapter 1: Introduction
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)
Website: 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)
Website: www.supermicro.nl
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]
Website: www.supermicro.com.tw

1-6
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual
1-6 2U Twin2: System Notes
As a 2U Twin2 conguration, the SuperServer 2028TR-HTR/HTFR/H72R/H72FR 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 independent
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
Dual 1600 power supplies are 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.
Hard Drive Backplane/Drives
The SuperServer 2028TR-HTR/HTFR/H72R/H72FR supports the use of 24 hard
drives (SATA). A single backplane works to apply system-based control for power
and fan speed functions and logically connects a set of six hard drives to each
serverboard/node. Consequently, RAID setup is limited to a six-drive scheme (RAID
cannot be spread across all 24 drives). See the Drive Bay Installation/Removal
section in Chapter 6 for the logical hard drive and node conguration.
Adapter Cards
Besides the serverboard, the four servers are differentiated by the type of adapter
card installed. The table below lists the differences between the four servers.
Server Differentiation
Server Serverboard Adapter Card
2028TR-HTR X10DRT-H BPN-ADPX9-6SATA-O-P
2028TR-HTFR X10DRT-HIBF BPN-ADPX9-6SATA-O-P
2028TR-H72R X10DRT-H BPN-ADP-S2208L-H6iR-O-P
2028TR-H72FR X10DRT-HIBF BPN-ADP-S2208L-H6iR-O-P

Chapter 2: Server Installation
2-1
Chapter 2
Server Installation
2-1 Overview
This chapter provides a quick setup checklist to get your SuperServer
2028TR-HTR/HTFR/H72R/H72FR 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 2028TR-HTR/HTFR/H72R/H72FR server 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
2028TR-HTR/HTFR/H72R/H72FR server. 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 SuperServer 2028TR-HTR/HTFR/H72R/H72FR 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.

2-2
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual
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.
•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.
2-4 Warnings and Precautions
Rack Precautions
•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.).
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.

2-4
SUPERSERVER 2028TR-HTR/HTFR/H72R/H72FR User's Manual
2-5 Installing the System into a Rack
This section provides information on installing the 2028TR-HTR/HTFR/H72R/H72FR
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
Warning: do not pick up the server with the front handles. They are
designed to pull the system from a rack only.