Silicon Graphics 1450 User manual

SGI™1450 Server
Mounting Instructions
Document Number 007-4242-001

Cover design by Sarah Bolles, Sarah Bolles Design, and Dany Galgani, SGI Technical Publications.
© 2000, Silicon Graphics, Inc.— All Rights Reserved
The contents of this document may not be copied or duplicated in any form, in whole or in part, without the prior written permission of Silicon
Graphics, Inc.
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. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications.
LIMITED AND RESTRICTED RIGHTS LEGEND
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in the Rights in Data clause at FAR 52.227-14 and/or in
similar or successor clauses in the FAR, or in the DOD, DOE, or NASA FAR Supplements. Unpublished rights reserved under the Copyright
Laws of the United States. Contractor/manufacturer is Silicon Graphics, Inc., 1600 Amphitheatre Pkwy., Mountain View, CA 94043-1351.
SiliconGraphicsisaregisteredtrademarkandSGIandtheSGIlogoaretrademarksofSiliconGraphics,Inc.

007-4242-001 iii
Record of Revision
Version Description
001 June 2000
Initial Rev

007-4242-001 v
Contents
UnpackingandInspectingtheServer.................2
DeterminingSpaceRequirements..................2
ObservingPre-InstallationSafetyPrecautions...............2
CheckingtheSlideRailKit....................3
PreparingtheSlideAssemblies...................6
PreparingtheServer......................6
AttachingEIARailBrackets....................7
AttachingtheFrontBracket...................8
AttachingtheRearBracket...................10
AttachingtheSlideAssemblytotheRack................13
PlacingtheChassisintheRack...................14
InstallingHandles.......................14
AttachingtheFrontBezeltotheChassis................15
RemovingtheServerfromtheRack..................15

007-4242-001 vii
Figures
Figure 1 SlideAssemblyFullyExtended...........4
Figure 2 SafetyLatch.................5
Figure 3 InnerMemberAttachedtoChassis..........7
Figure 4 FL/RRBracketOrientation............8
Figure 5 Correct Alignment of Screw, Washer, Nut, Bracket,
andSlideAssembly(FL/RR)............9
Figure 6 FR/RLBracketOrientation............11
Figure 7 Correct Alignment of Screw, Washer, Nut, Bracket,
andSlideAssembly(FR/RL)............12
Figure 8 SlideAssemblyAlignedwithHolesinRack .......13
Figure 9 HandlesAlignedWiththeChassis..........14

007-4242-001 ix
Tables
Table 1 SGI1450ServerPhysicalSpecifications.........2

007-4242-001 1
0. SGI 1450 Server Mounting Instructions
This guide provides information on mounting the SGI 1450 server in a 19-inch rack.
To obtain SGI documentation using the World Wide Web, see the SGI Technical
Publications Library at http://techpubs.sgi.com.Enterakeywordsearch,or
search by title to find the information or manual you need.
Warning: To avoid personal injury when unpacking the server, use only a
mechanical assist unit to lift it off the shipping pallet. The minimum server
configuration weighs 26 kg (57 lbs); the maximum configuration weighs 40 kg (88 lbs).
Do not attempt to lift or move the server by the handles on the power supplies. Use
only a hand-truck or other mechanical assist unit to move the server from one location
to another.
This guide contains the following sections:
• Unpacking and Inspecting the Server
• Determining Space Requirements
• Observing Pre-Installation Safety Precautions
• Preparing the Slide Assemblies
•PreparingtheServer
• Attaching EIA Rail Brackets
• Attaching the Slide Assembly to the Rack
• Placing the Chassis in the Rack
• Installing Handles
• Attaching the Front Bezel to the Chassis
• Removing the Server from the Rack

2007-4242-001
SGI 1450 Server Mounting Instructions
Unpacking and Inspecting the Server
Remove the server from the packaging container and check that all accessories are
included. Inspect the packaging container for evidence of mishandling during transit. If
the packaging container is damaged, photograph it for reference. After removing the
contents, keep the damaged container and the packing materials.
Inspect the server and accessories for damage. If the contents appear damaged, file a
damage claim with the carrier immediately.
Determining Space Requirements
The SGI 1450 Server is designed either to be mounted in a standard 19-inch rack (rack
mode) or to stand upright (pedestal mode).
The following table specifies the space requirements for the SGI 1450 Server system in
rack mode.
Observing Pre-Installation Safety Precautions
Read the following warnings and cautions before proceeding with the installation.
Table 1 SGI 1450 Server Physical Specifications
Specification Rack Mode
Height 4u (7 inches)
Width 17.5 inches (44.5 cm)
Depth 26.5 inches (67.3 cm)
Weight 57 lbs (26 kg), minimum configuration
88 lbs (40 kg), maximum configuration
Required front clearance 3 inches (inlet air temperature <35 °C / 95 °F)
Required rear clearance 6 inches (no airflow restriction allowed)
Required side clearance 1 inch

Checking the Slide Rail Kit
007-4242-001 3
Warning: You are responsible for installing an AC power disconnect for the entire
rack unit. This main disconnect must be readily accessible, and it must be labeled as
controlling power to the entire unit, not just to the server(s).
Warning: To avoid the potential for an electrical shock hazard, you must include a
third wire safety grounding conductor with the rack installation. If a server power
cord is plugged into an AC outlet that is part of the rack, then you must provide proper
grounding for the rack itself. If server power cords are plugged into wall AC outlets,
the safety grounding conductor in each power cord provides proper grounding only
for the server. You must provide additional, proper grounding for the rack and other
devices installed in it.
Caution: The operating temperature of the server, when installed in an equipment rack,
must not go below 5 °C (41 °F) or rise above 35 °C (95 °F). Extreme fluctuations in
temperature can cause various problems in your server.
Caution: The equipment rack must provide sufficient airflow to the front of the server
to maintain proper cooling. It must also include ventilation sufficient to exhaust a
maximum of 4,100 Btu’s per hour for the server. The rack selected and the ventilation
provided must be suitable to the environment in which the server will be used.
Checking the Slide Rail Kit
Warning: To avoid personal injury when unpacking the server, use only a
mechanical assist unit to lift it off the shipping pallet. The minimum server
configuration weighs 26 kg (57 lbs); the maximum weighs 40 kg (88 lbs). Do not
attempt to lift or move the server by the handles on the power supplies. Use only a
hand-truck or other mechanical assist unit to move the server from one location to
another.
!
!

4007-4242-001
SGI 1450 Server Mounting Instructions
The slide rail kit contains two slide rail assemblies, EIA brackets, and several screws,
nuts, and bolts, as explained in the following paragraphs.
As shown in Figure 1, each of the two slide rail assemblies contains three moving parts:
the inner member, the intermediate member, and the outer member.
The slide rail kit contains four EIA brackets. Two brackets are labeled FL/RR. One is
connected to the front left (FL) of the slide assembly; the other is connected to the rear
right (RR). The remaining two brackets are labeled FR/RL. One is connected to the front
right (FR) of the slide assembly; the other is connected to the rear left (RL). Figure 1
shows where the brackets are attached to the slide rail assembly.
Screws, lock nuts, and washers are provided for the assembly of each slide rail and to
attach the slide rails to the server. However, you must supply the screws that secure the
slide rail to the rack.
Figure 1 Slide Assembly Fully Extended
The inner member has a safety latch shown in Figure 2. Without fully extending the slide
assembly, you can move the server in and out from the rack. When the slide assembly is
A. Inner Member The inner member is the narrowest piece of the slide
assembly.
B. Intermediate Member The intermediate member is the middle member of the slide
assembly.
C. Outer Member The outer member is the widest piece of the slide assembly.
D. Front Left Bracket The front left bracket is labeled FL/RR.
E. Rear Left Bracket The rear left bracket is labeled FR/RL.
C
B
A
D E

Checking the Slide Rail Kit
007-4242-001 5
fully extended, this latch locks the assembly in the fully extended position. When you
depress the latch, you can release the inner member from the rest of the slide assembly.
Figure 2 Safety Latch
Warning: You must anchor the equipment rack to an unmovable support to prevent
it from falling over when the server is pulled on the slide assembly. The anchors must
be able to withstand a force of up to 113 kg (250 lbs). You must also consider the weight
of any other device installed in the rack.
Caution: After completing the rack mount installation, do not depress the safety latch
unless you are removing the chassis from the rack. The purpose of the safety latch is to
prevent the server from unexpectedly sliding out of the rack.
A. Inner Member The inner member is the narrowest piece of the slide
assembly. The inner member is attached to the chassis.
B. Safety Latch The safety latch is located on the inner member.
C. Intermediate Member The intermediate member slides into the inner member.
CA
B
!

6007-4242-001
SGI 1450 Server Mounting Instructions
Preparing the Slide Assemblies
To prepare the slide assemblies, follow these steps:
1. Remove the slide assemblies from the kit.
2. Orient the slide assembly so that the inside of the inner member is facing up and the
safety latch is visible.
3. Fully extend the telescoping slide assembly until the intermediate member hits the
safety latch on the inner member.
4. Depress the safety latch with your thumb. Pull the inner member away from the
intermediate member until the inner member separates from the rest of the slide
assembly.
5. Set the intermediate and outer members of the slide assembly aside. You will need
them later on.
Preparing the Server
To prepare the server, follow these steps:
1. Remove six #10-32 x 1/4 long pan-head screws from the kit.
2. Orient the first inner member so that the latch points towards the rear of the chassis.
Figure 3 shows the inner member attached to the chassis (the inner member is noted by
“A”). Notice that the safety latch is pointed towards the rear of the chassis

Attaching EIA Rail Brackets
007-4242-001 7
Figure 3 Inner Member Attached to Chassis
3. Align the three holes in the inner member with the three holes in the chassis.
4. Insert and tighten a screw through each hole in the bar and chassis wall.
5. Repeat steps 2 through 4 for the other inner member on the other side of the chassis.
Attaching EIA Rail Brackets
At this point, you have removed the inner member from the slide assembly. The outer
andintermediatememberscomprisetheslideassembly.Notethelocationofthebrackets
in Figure 1.
Note: Mounting holes in the vertical rails of equipment racks are commonly spaced in a
5/8 x 5/8 x 1/2-inch sequence. Perform the steps in the following sections carefully;
brackets must be mounted with precision to allow room for the next server you install in
arack.
A A A

8007-4242-001
SGI 1450 Server Mounting Instructions
Attaching the Front Bracket
To attach the front bracket to the slide assembly, follow these steps:
1. Remove two #8-32 x 1/2 long pan-head screws, two washers, and two lock nuts
from the kit.
2. Extend the intermediate member out from the outer member so that the hole at the
front end of the outer member is visible through a rectangular hole in the
intermediate member. Item B in Figure 5 shows the direction in which you must
extend the intermediate member.
Figure 4 shows how the FL/RR bracket is oriented and how the slide rail assembly is
extended.
Figure 4 FL/RR Bracket Orientation
A. Front Left
Bracket
The front left bracket is labeled FL/RR.
B. Lower Tongue The correct orientation of the lower tongue of the bracket safety
latch is shown.
C. Extended Slide
Assembly
Theintermediatememberisextendedsothattherectangularhole
in the screw hole in the outer member is centered in the rectangular
holeoftheintermediatemember.
B
A
C

Attaching EIA Rail Brackets
007-4242-001 9
3. PlaceoneofthebracketslabeledFL/RRontheoutsideoftheoutermember.The
lower tongue of the bracket must be oriented correctly. Item B in Figure 4 shows the
bracket’s correct orientation.
4. Place a screw in the holes from inside the intermediate member and tighten with a
washer and lock nut. The correct alignment of the screw, washer, lock nut, bracket,
and slide assembly is shown in Figure 5.
Figure 5 Correct Alignment of Screw, Washer, Nut, Bracket, and Slide Assembly (FL/RR)
A. Extended Slide Rail
Assembly
The slide rail assembly is extended so that the screw hole
in the outer member is centered in the rectangular hole of
theintermediatemember.
B. Extension Direction The intermediate member is extended in this direction.
C. Rectangular Hole The screw hole is centered in the rectangular hole of the
intermediate member.
D. Front Left Bracket The front left bracket is labeled FL/RR.
E. Screw The screw secures the bracket to the slide rail assembly.
F. Washer and Locknut The correct orientation of the washer and locknut is
shown.
D
E
F
C
B
A

10 007-4242-001
SGI 1450 Server Mounting Instructions
Caution: Before continuing, make sure that the screw connecting the front bracket is
tightened securely. If it is not, the rack installation may not be able to support the weight
of the server.
5. Slide the intermediate member back and forth over the screw you just tightened. If
theintermediatemembercannotslideoverthescrew,makesurethescrewsizeis
correct.
6. Repeat steps 2 through 5 for the other slide assembly.
Attaching the Rear Bracket
To attach the rear bracket to the slide assembly, follow these steps:
1. Remove four #8-32 x 1/2 long pan-head screws, four washers, and four lock nuts
from the kit.
2. Extend the intermediate member out from the outer member so that you have
complete access to the rear part of the outer member. Item B in Figure 7 shows the
direction in which you must extend the intermediate member. On the right side of
the slide assembly, notice that the three screw holes in the outer member are
accessible.
3. Place one of the brackets labeled FR/RL on the outside of the outer member. The
lower tongue of the bracket must be oriented correctly. Item B in Figure 6 shows the
correct orientation.
Figure 6 shows how the FR/RL bracket is oriented and how the slide rail assembly is
extended.
!