Supermicro SUPERSERVER 4028GR-TR User manual

USER’S MANUAL
Revision 1.0c
SUPERSERVER®
4028GR-TR
4028GR-TRT
4028GR-TR2
4028GR-TRT2
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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: November 04, 2016
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 © 2016 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 4028GR-TR(T)(2).
Installation and maintenance should be performed by experienced technicians only.
Please refer to the server specications page on our Web site for updates on
supported memory, processors and operating systems (http://www.supermicro.
com).
Notes
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.
• Supermicro 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
If you have any questions, please contact our support team at:
[email protected]
This manual may be periodically updated without notice. Please check the
Supermicro Web site for possible updates to the manual revision level.
Warnings
Special attention should be given to the following symbols used in this manual.
Warning! Indicates high voltage may be encountered when performing
a procedure.
Warning! Indicates important information given to prevent equipment/
property damage or personal injury.

iv
SUPERSERVER 4028GR-TR(T)(2) Manual
Contents
Chapter 1 Introduction
1-1 Overview ......................................................................................................... 1-1
1-2 Motherboard Features..................................................................................... 1-2
Processors ...................................................................................................... 1-2
Memory ........................................................................................................... 1-2
Serial ATA ....................................................................................................... 1-2
PCI Expansion Slots ....................................................................................... 1-2
Input/Output Ports........................................................................................... 1-2
Daughter Cards............................................................................................... 1-4
IPMI................................................................................................................. 1-5
1-3 Chassis Features ............................................................................................ 1-5
System Power................................................................................................. 1-5
SATA Subsystem............................................................................................. 1-5
Front Control Panel......................................................................................... 1-5
Cooling System............................................................................................... 1-5
1-4 GPU Subsystem.............................................................................................. 1-5
1-5 Contacting Supermicro.................................................................................... 1-7
Chapter 2 Rack Installation
2-1 Unpacking the System .................................................................................... 2-1
2-2 Preparing for Setup......................................................................................... 2-1
Choosing a Setup Location............................................................................. 2-1
2-3 Warnings and Precautions.............................................................................. 2-2
Rack Precautions............................................................................................ 2-2
General Server Precautions............................................................................ 2-2
Rack Mounting Considerations ....................................................................... 2-3
Ambient Operating Temperature ................................................................ 2-3
Sufcient Airow ......................................................................................... 2-3
Circuit Overloading..................................................................................... 2-3
Reliable Ground ......................................................................................... 2-3
2-4 Procedure for Rack Mounting ......................................................................... 2-4
Identifying the Inner Rack Rails...................................................................... 2-4
Installing the Inner Rails on the Chassis ........................................................ 2-5
Installing the Outer Rails onto the Rack......................................................... 2-6
Installing the Chassis into a Rack................................................................... 2-7
Removing the Chassis from the Rack ............................................................ 2-8

v
Preface
Chapter 3 System Interface
3-1 Overview ......................................................................................................... 3-1
3-2 Control Panel Buttons ..................................................................................... 3-2
Power .............................................................................................................. 3-2
Reset............................................................................................................... 3-2
3-3 Control Panel LEDs ........................................................................................ 3-2
Power .............................................................................................................. 3-2
HDD................................................................................................................. 3-2
NIC2 ................................................................................................................ 3-3
NIC1 ................................................................................................................ 3-3
Information LED .............................................................................................. 3-3
Power Fail ....................................................................................................... 3-3
Overheating..................................................................................................... 3-4
Overheat Temperature Setting ................................................................... 3-4
Responses.................................................................................................. 3-4
3-4 Drive Carrier LEDs.......................................................................................... 3-4
3-5 Power Supply LEDs ........................................................................................ 3-5
Chapter 4 Standardized Warning Statements for AC Systems
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 (if applicable to your system)........................... 4-12
Backplane Voltage (if applicable to your system)......................................... 4-13
Comply with Local and National Electrical Codes........................................ 4-14
Product Disposal........................................................................................... 4-15
Hot Swap Fan Warning (if applicable to your system) ................................. 4-16
Power Cable and AC Adapter ...................................................................... 4-18
Chapter 5 Advanced Motherboard Setup
5-1 Handling the Motherboard .............................................................................. 5-1
Precautions ..................................................................................................... 5-1
Unpacking ....................................................................................................... 5-1

vi
SUPERSERVER 4028GR-TR(T)(2) Manual
5-2 Connecting Cables.......................................................................................... 5-2
Connecting Data Cables ................................................................................. 5-2
Connecting Power Cables .............................................................................. 5-2
Connecting the Control Panel......................................................................... 5-2
5-3 Input/Output Ports........................................................................................... 5-3
5-4 Installing the Processor and Heatsink ............................................................ 5-4
Installing an LGA 2011 Processor................................................................... 5-4
Installing a CPU Heatsink ............................................................................... 5-7
Removing the Heatsink .................................................................................. 5-7
5-5 Installing Memory............................................................................................ 5-8
Processor/DIMM Population Congurations .............................................. 5-9
5-6 Motherboard Details...................................................................................... 5-10
PCI-E Daughter Board .................................................................................. 5-12
5-7 Connector Denitions.................................................................................... 5-13
Power Connectors ....................................................................................... 5-13
Control Panel Connectors............................................................................. 5-14
Rear Input/Output Connections..................................................................... 5-17
Internal Headers............................................................................................ 5-18
5-8 Jumper Settings ............................................................................................ 5-20
5-9 Onboard Indicators........................................................................................ 5-22
5-10 SATA Ports .................................................................................................... 5-23
5-11 Installing Software......................................................................................... 5-24
SuperDoctor®5 ............................................................................................. 5-25
5-12 Onboard Battery............................................................................................ 5-26
Chapter 6 Advanced Chassis Setup
6-1 Static-Sensitive Devices.................................................................................. 6-2
Precautions ..................................................................................................... 6-2
6-2 Removing Power from the System ................................................................. 6-2
6-3 Installing Hard Drives...................................................................................... 6-3
6-4 Removing the Chassis Cover ......................................................................... 6-5
6-5 Installing Expansion Cards ............................................................................. 6-6
6-6 Installing the Air Shroud.................................................................................. 6-7
6-7 Replacing Fans ............................................................................................... 6-9
6-8 Power Supply................................................................................................ 6-10

vii
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...................................................................... 7-4
7-4 Event Logs .................................................................................................... 7-37
7-5 IPMI............................................................................................................... 7-39
7-6 Security Settings ........................................................................................... 7-42
7-7 Boot Settings................................................................................................. 7-45
7-8 Save & Exit ................................................................................................... 7-48
Appendix A BIOS Error Beep Codes
Appendix B System Specications

viii
Notes

Chapter 1
Introduction
1-1 Overview
The SuperServer 4028GR-TR(T)(2) is a GPU/Xeon Phi optimized server comprised
of two main subsystems: the SC418GTS-R3200B/R4000B 4U server chassis
and the X10DRG-O(T)+ motherboard, augmented by a daughter board for PCIe
expansion capabilities. The models and features are:
Model Network
Ports
PCIe Board Power Supply
4028GR-TR 1 Gb X9DRG-O-PCIE 1600 W, Platinum
4028GR-TRT 10 Gb X9DRG-O-PCIE 1600 W, Platinum
4028GR-TR2 1 Gb X10DRG-O-PCIE 2000 W, Titanium
4028GR-TRT2 10 Gb X10DRG-O-PCIE 2000 W, Titanium
Other components are:
• Eight 9-cm fans (FAN-0151L4)
• One air shroud (MCP-310-41808-0B) over PCI slots
• Two passive CPU heatsinks (SNK-P0048PS)
• Storage Accessories
One SAS backplane (BPN-SAS3-216A)
Twenty-four hot-swap drive carriers (MCP-220-00047-0B)
• Riser card (RSC-X9DRG-O)
• One rail set (MCP-290-00057-0N)
Operating systems certied for use with the system are listed on the web site.
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.
• Supermicro 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
If you have any questions, please contact our support team at:
[email protected]
Chapter 1: Introduction
1-1

1-2
SUPERSERVER 4028GR-TR(T)(2) User's Manual
1-2 Motherboard Features
At the heart of the server is the X10DRG-O(T)+-CPU, a dual processor motherboard
based on the Intel PCH C612 chipset. Below are the main features. (See Figure
1-1 for a block diagram)
Processors
The X10DRG-O(T)+-CPU supports dual Intel E5-2600 v3/v4 series processors
in LGA 2011 sockets (Socket R3). Each processor supports dual Intel QuickPath
Interconnect (QPI) links of up to 9.6 GT/s per QPI. Refer to the motherboard
description pages on our web site for a complete listing of supported processors
(www.supermicro.com).
Memory
The motherboard has 24 DIMM slots that can support up to 3 TB of Load
Reduced (LRDIMM) or 1.5 TB of Registered (RDIMM) DDR4 ECC, 288-pin, at
2400/2133/1866/1600/1333 MHz. DIMMs up to 64 GB at 1.2V. See Chapter 5 for
details.
Serial ATA
The motherboard supports a ten SATA 3.0 ports. That is four I-SATA, two more
I-SATA with SuperDOM support, and four S-SATA. RAID 0, 1, 5 and 10 can be
enabled.
PCI Expansion Slots
The system includes a daughter board that supports PCI-E expansion cards.
• Daughterboard X9DRG-O-PCIE (SYS-4028GR-TR[T]) supports eleven PCI-E
3.0 devices, including up to eight double-width graphic processor units (GPUs)
with x16 full signal slots, plus two PCI-E 3.0 x8 and one PCI-E 2.0 x4 expansion
cards.
• Daughterboard X10DRG-O-PCIE (SYS-4028GR-TR[T]2) supports up to ten
double-width GPUs with x16 full signal slots, or eight double width GPUs with
three PCI-E 3.0 x16 and one PCI-E 3.0 x8 expansion cards
The daughter boards are further described in Chapter 5.
Note that both CPUs must be installed to enable use of all PCI-E slots.

1-3
Chapter 1: Introduction
5 PHASE
160W
#0~3
2133
DDR4
VR12.5
P0
#B-1
#A-1
QPI
9.6G
PCH
C612
PCI-E X16 Gen3
DMI2
SPI
DMI2
BMC
ASD2400
PCI-E X24
PCI-E X16 Gen3
E5
DDR4
E5
DDR4
QPI
9.6G
5GB/s
S_SATA
P1
P1
P0
PCI-E X24
PCI-E X8 Gen3
PCI-E X16 Gen3
#1 #2 #3
#2 #3 #1
5 PHASE
160W
VR12.5
VGA
PCI-E X8 Gen3
Internal
COM Port
Header
X540 (-OT+)
I350 (-O+)
LAN
i_SATA
#4
#5
#2
USB 3.0/2.0
USB
6.0 Gb/S
For Ports 0~3
6.0 Gb/S
For Ports 4/5
1
UP
C
2UPC
SXB2
PCH
10G
LAN
Ports#4/5
SATA
SATA3
SATA3
port2
port3
port1
port1 port2
port3
#A-2
#B-2
#C-1
#C-2
#D-1
#D-2
2133
DDR4
#F-1
#E-1
#E-2
#G-1
#F-2
#H-2
#H-1
#G-2
Ports#0~3
SATA
#D-3
#C-3
#B-3
#A-3
#E-3
#F-3
#G-3
#H-3
S_SATA
6.0 Gb/S
For Ports 0~3
SATA3
PCI-E X4 Gen2
PCI-E X4 Gen2
SXB3 SXB1 SXB4
X16
X16 X16 X16
X8 X8
GEN2,X1
GEN2
X4
PCIe
PCIe X1 Gen2
PCIe
BMC
GEN2
X4
DMI2
CPU1 CPU2
DMI2
DMI2
PCI-E X16 Gen3
VGA Dedicated LAN
i_SATA
#4~5 (SMC SATADOM)
#0
#1
#2
#3
Ports #0~3
#0~3
#0
#1
#2
#3
Figure 1-1. Intel PCH C612 Chipset System Block Diagram
Note: This is a general block diagram. See Chapter 5 for details.

1-4
SUPERSERVER 4028GR-TR(T)(2) User's Manual
Input/Output Ports
The rear I/O ports include a VGA (monitor) port, four USB 3.0 ports, two Ethernet
LAN ports (1Gb for X10DRG-O+, 10Gb for X10DRG-OT+) and one dedicated IPMI
2.0 LAN port.
The motherboard also includes two headers for four front access USB 2.0 ports
and one USB 2.0 Type A port.
IPMI
Intelligent Platform Management Interface (IPMI) 2.0 is a hardware-level interface
specication that provides remote access, monitoring and administration for
Supermicro servers. IPMI enables administrators to view a server hardware status
remotely, receive an alarm automatically if a failure occurs, and power cycle a
system that is non-responsive.
1-3 Chassis Features
The 4028GR-TR(T) server uses the SC418GTS-R3200Pchassis; the 4028GR-TR(T)2
server uses the SC418GTS-R4000P chassis.
System Power
The chassis features a 2+2 redundant power supply system composed of four hot-
plug, high efciency power modules.
Storage Drives
The chassis includes twenty-four 2.5" drive bays, which house hot-swappable
SATA drives.
Front Control Panel
The control panel provides a system monitoring and control interface. LEDs indicate
system power, HDD activity, network activity, and a system overheat/fan-fail/UID
LED. A main power button and a system reset button are also included.
Cooling System
The chassis has an innovative cooling design that includes eight 9-cm heavy-duty
fans. They offer status monitoring through IPM, dual cooling zones, fan speed
control, and Pulse Width Modulation (PWM) control.
In addition, an air shroud helps channel air over the motherboard and PCI slots for
maximum cooling. The power supply modules also include a cooling fan. All chassis
and power supply fans operate continuously.

1-5
Chapter 1: Introduction
1-4 GPU Subsystem
The 4028GR-TR(T)(2) server represents one of Supermicro's massively parallel
processing multiple GPU/Xeon Phi servers, with support for up to eight GPUs/
Xeon Phis. NVIDIA Tesla GPUs place this system at the forefront of today's GPU
computing solutions. Refer to the NVIDIA web site (www.nvidia.com) for details on
Tesla GPUs.
The GPUs process complex image calculations and then route the data out through
the VGA port on the motherboard.
NVIDIA K40/K80 GPUs have been tested for use with this system. Any combination
of these cards (up to a total of eight may have come bundled with the system.
Power Notes
To provide power for the GPU cards, connect the GPU power cable from each of
the GPUs to JPW4, 6, 7, 12, 13, 14, 15, 16 on the motherboard (one cable for
each card).

1-6
SUPERSERVER 4028GR-TR(T)(2) User's Manual
1-5 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

2-1
Chapter 2: Rack Intallation
Chapter 2
Rack Installation
This chapter provides instructions for preparing and mounting your chassis in a rack.
2-1 Unpacking the System
You should inspect the box the chassis was shipped in and note if it was damaged
in any way. If the chassis itself shows damage, le a damage claim with the carrier
who delivered it.
2-2 Preparing for Setup
Decide on a suitable location for the rack unit that will hold your chassis. It should
be a clean, dust-free area that is well ventilated. Avoid areas where heat, electrical
noise and electromagnetic elds are generated. A nearby grounded power outlet.
is required
The box your chassis was shipped in should include two sets of rail assemblies, two
rail mounting brackets and the mounting screws to mount the system into the rack.
Please read this chapter in its entirety before beginning the installation procedure.
Choosing a Setup Location
• Leave at least 25 inches clearance in front of the rack to open the front door
completely.
• Leave approximately 30 inches of clearance in the back of the rack to allow for
sufcient airow and access for servicing.
• It should be a restricted access location, such as a dedicated equipment room
or a service closet.

SuperServer 4028GR-TR(T)(2) User's Manual
2-2
2-3 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 installations, stabilizers should be attached to the rack.
• In multiple rack installations, the racks should be coupled together.
• Always make sure that the rack is stable before extending a component from
the rack.
• Only one chassis should be extended from the rack at a time. Extending two or
more chassis simultaneously may cause the rack to become unstable.
• When initially installing the server to a rack, test that the rail locking tabs engage
to prevent the server from being overextended. Have a rack lift in place as a
precaution in case the test fails.
• In any instance of pulling the system from the rack, always use a rack lift and
follow all associated safety precautions.
General Server Precautions
• Review the electrical and general safety precautions that came with the
components you are adding to your chassis.
• 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 upward.
• 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 the hot-swappable hard 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.

2-3
Chapter 2: Rack Intallation
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).
Sufcient Airow
Equipment should be mounted into a rack so that the amount of airow required
for safe operation is not compromised.
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.
• Slide rail mounted equipment is not to be used as a shelf or a work space.

SuperServer 4028GR-TR(T)(2) User's Manual
2-4
2-4 Procedure for Rack Mounting
This section provides information on installing a 4U chassis into a rack unit with
the rails provided. There are a variety of rack units on the market, so the assembly
procedure may differ slightly. Also refer to the installation instructions for your rack
unit.
Note: This rail will t a rack between 26.5"and 36.4" deep.
Identifying the Inner Rack Rails
The chassis package includes one pair of rack rail assemblies in the rack mounting
kit. Each assembly consists of an inner rail that secures to the chassis and an outer
rail that is attached directly to the rack. The inner rails are etched with "L" (Left
side) and "R" (Right side).
Figure 2-1. Identifying the Rack Rails
Inner Rail Assembly

2-5
Chapter 2: Rack Intallation
Figure 2-2. Installing the Inner Rails
Installing the Inner Rails on the Chassis
Installing the Inner Rails
1. Identify the left and right side inner rails. Place the correct inner rail on the side
of the chassis, aligning the hooks of the chassis with the inner rail holes. Make
sure the rail faces "outward" so that it will t with the rack's mounting bracket.
2. Slide the rail toward the front of the chassis to hook the inner rail onto the side
of the chassis.
3. If desired, secure the rail with two at head M4 x 4mm screws as illustrated.
4. Repeat for the other inner rail.
1
1
1
2
1
3
Warning: Do not pick up the server by the front handles. They are designed
to pull the system from a rack only.

SuperServer 4028GR-TR(T)(2) User's Manual
2-6
Figure 2-3. Extending and Mounting the Outer Rails
1
1
1
2
1
3
1
4
21D01
L-min=676.00(26.61")(outer rail)
Installing the Outer Rails onto the Rack
Installing the Outer Rails
1. Press upward on the locking tab at the rear end of the middle rail.
2. Push the middle rail back into the outer rail.
3. Hang the hooks on the front of the outer rail onto the square holes on the front
of the rack. If desired, use screws to secure the outer rails to the rack.
4. Pull out the rear of the outer rail, adjusting the length until it just ts within the
posts of the rack.
5. Hang the hooks of the rear section of the outer rail onto the square holes on the
rear of the rack. Take care that the proper holes are used so the rails are level.
If desired, use screws to secure the rear of the outer rail to the rear of the rack.
6. Repeat for the other outer rail.
Stability hazard. The rack stabilizing mechanism must be in place, or the rack
must be bolted to the oor before you slide the unit out for servicing. Failure to
stabilize the rack can cause the rack to tip over.
Do not use a two post "telco" type rack.