IBM System x3950 E Type 8879 User manual

Welcome.
Thank you for buying an
IBM server.
This server
contains information for setting
up and configuring your server.
For detailed information about
your server, view the publications
on the
You can also find the most
current information about
your server at http://www.ibm.com/
support/
.
Your server
is based on the X-Architecture
technology, and it features
superior performance, availability,
and affordability.
Documentation CD.
Installation Guide
servers/eserver/support/
xseries/index.html
Installation Guide
System x3950
Type 8878
System x3950 E
Type 8879
Turn off the server
and install options.
Did the server
start correctly?
Ye s
No
Go to the Server Support
flow chart on the reverse
side of this page.
Start the server.
Did the server
start correctly?
Ye s
No
Install the server in the rack cabinet
and cable the server and options;
then, restart the server.
Was the
server setup
completed?
Use
ServerGuide to
install the operating
system?
The server is ready to use.
Go to
to register the server.
http://www.ibm.com/support/mysupport/
Go to the Web for instructions:
http://www.ibm.com/support/
servers/eserver/support/
xseries/index.html
No
Ye s
Ye s
No
Use the IBM
ServerGuide program
to set up and
configure hardware.
Go to the Server Support
flow chart on the reverse
side of this page.
Install applications,
such as IBM systems
management software
and IBM ServeRAID
programs

Server Support
Ye s
No
No
See the troubleshooting
information that comes with
the server to determine
the cause of the problem
and the action to take.
Update the firmware to the
latest level.
You can download firmware from
http://www.ibm.com/servers/
eserver/support/xseries/
index.html
No
No Software
Ye s
Ye s
Hardware
Check all cables for loose connections
and verify that all optional devices you
installed are on the ServerProven list at
http://www.ibm.com/servers/eserver/
serverproven/compat/us/.
Is the server working
correctly?
Is the problem
solved?
Hardware or
software problem?
View support telephone numbers at
http://www.ibm.com/planetwide/.
View information about IBM Support Line at
or view support telephone numbers at
http://www.ibm.com/services/sl/products/
http://www.ibm.com/planetwide/.
Register the server. Go to
http://www.ibm.com/support/mysupport/.
Ye s
Is the problem
solved?
Is the problem
solved?

IBM System x3950 Ty pe 8878 and System x3950 E
Ty pe 8879
Installation Guide


Note: Before using this information and the product it supports, read the general information in “Notices” on page 83, and the
Warranty and Support Information document on the IBM System xDocumentation CD.
5th Edition (November 2006)
©Copyright International Business Machines Corporation 2006. All rights reserved.
US Government Users Restricted Rights –Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety ............................v
Chapter 1. Introduction ......................1
The IBM System xDocumentation CD.................2
Hardware and software requirements ................2
Using the Documentation Browser .................2
Notices and statements in this document ................3
Features and specifications .....................4
Major components of the server ...................6
Chapter 2. Installing options....................7
Installation guidelines .......................7
System reliability guidelines....................8
Working inside the server with the power on .............8
Handling static-sensitive devices ..................9
Installing ahot-swap hard disk drive .................10
Installing additional DIMMs ....................11
Installing aDIMM .......................12
Installing amemory card ....................14
Installing an additional microprocessor ................15
Installing an adapter .......................19
Completing the installation.....................21
Connecting the cables .....................21
Updating the server configuration .................22
SMP Expansion cabling.....................23
Chapter 3. Server controls, connectors, LEDs, and power........31
Front view ..........................31
Rear view ...........................33
Server power features ......................34
Turning on the server .....................35
Turning off the server .....................35
Chapter 4. Configuring the server .................37
Using the ServerGuide Setup and Installation CD ............37
Using the Configuration/Setup Utility program .............37
Installing and using the baseboard management controller utility programs ...38
Enabling and configuring SOL using the OSA SMBridge management utility
program .........................38
Installing the OSA SMBridge management utility program ........47
Using the baseboard management controller utility programs .......48
Using the SAS/SATA Configuration Utility program ............50
Using the ServeRAID configuration programs..............50
Using the PXE boot agent utility program ...............50
Using the Scalable Partition Web Interface...............51
Creating ascalable partition ...................51
Deleting ascalable partition ...................54
Chapter 5. Updating IBM Director .................55
Chapter 6. Solving problems ...................57
Diagnostic tools overview .....................57
POST beep codes .......................57
©Copyright IBM Corp. 2006 iii

POST error codes........................58
Troubleshooting tables ......................60
CD or DVD drive problems ...................60
General problems .......................61
Hard disk drive problems ....................61
Intermittent problems......................62
Keyboard, mouse, or pointing-device problems ............62
USB keyboard, mouse, or pointing-device problems ..........63
Memory problems .......................65
Microprocessor problems ....................66
Monitor problems .......................66
Optional-device problems ....................69
Power problems .......................70
Serial port problems ......................71
ServerGuide problems .....................72
Software problems ......................73
Universal Serial Bus (USB) port device problems ...........73
Video problems........................73
Light path diagnostics ......................74
Remind button ........................76
Light path diagnostics panel ...................77
Appendix. Getting help and technical assistance ...........81
Before you call .........................81
Using the documentation .....................81
Getting help and information from the World Wide Web ..........82
Software service and support ...................82
Hardware service and support ...................82
IBM Taiwan product service ....................82
Notices ...........................83
Trademarks ..........................83
Important notes.........................84
Product recycling and disposal ...................85
Battery return program ......................86
Electronic emission notices ....................87
Federal Communications Commission (FCC) statement .........87
Industry Canada Class Aemission compliance statement ........87
Australia and New Zealand Class Astatement ............87
United Kingdom telecommunications safety requirement.........87
European Union EMC Directive conformance statement .........88
Taiwanese Class Awarning statement ...............88
Chinese Class Awarning statement ................88
Japanese Voluntary Control Council for Interference (VCCI) statement ...88
Index ............................89
iv IBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide

Safety
Before installing this product, read the Safety Information.
Antes de instalar este produto, leia as Informações de Segurança.
Pred instalací tohoto produktu si prectete prírucku bezpecnostních instrukcí.
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat udit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d’installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.
Antes de instalar este produto, leia as Informações sobre Segurança.
©Copyright IBM Corp. 2006 v

Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
Important:
All caution and danger statements in this documentation begin with anumber. This
number is used to cross reference an English caution or danger statement with
translated versions of the caution or danger statement in the IBM Safety Information
book.
For example, if acaution statement begins with anumber 1, translations for that
caution statement appear in the IBM Safety Information book under statement 1.
Be sure to read all caution and danger statements in this documentation before
performing the instructions. Read any additional safety information that comes with
the server or optional device before you install the device.
vi IBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide

Statement 1:
DANGER
Electrical current from power, telephone, and communication cables is
hazardous.
To avoid ashock hazard:
vDo not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical
storm.
vConnect all power cords to aproperly wired and grounded electrical
outlet.
vConnect to properly wired outlets any equipment that will be attached to
this product.
vWhen possible, use one hand only to connect or disconnect signal
cables.
vNever turn on any equipment when there is evidence of fire, water, or
structural damage.
vDisconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
vConnect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached
devices.
To Connect: To Disconnect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
1. Turn everything OFF.
2. First, remove power cords from outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
Safety vii

Statement 2:
CAUTION:
When replacing the lithium battery, use only IBM Part Number 33F8354 or an
equivalent type battery recommended by the manufacturer. If your system has
amodule containing alithium battery, replace it only with the same module
type made by the same manufacturer. The battery contains lithium and can
explode if not properly used, handled, or disposed of.
Do not:
vThrow or immerse into water
vHeat to more than 100°C (212°F)
vRepair or disassemble
Dispose of the battery as required by local ordinances or regulations.
Statement 3:
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or
transmitters) are installed, note the following:
vDo not remove the covers. Removing the covers of the laser product could
result in exposure to hazardous laser radiation. There are no serviceable
parts inside the device.
vUse of controls or adjustments or performance of procedures other than
those specified herein might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view directly
with optical instruments, and avoid direct exposure to the beam.
viii IBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide

Statement 4:
≥18 kg (39.7 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)
CAUTION:
Use safe practices when lifting.
Statement 5:
CAUTION:
The power control button on the device and the power switch on the power
supply do not turn off the electrical current supplied to the device. The device
also might have more than one power cord. To remove all electrical current
from the device, ensure that all power cords are disconnected from the power
source.
1
2
Safety ix

Statement 8:
CAUTION:
Never remove the cover on apower supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect aproblem with one of these parts, contact
aservice technician.
Statement 26:
CAUTION:
Do not place any object on top of rack-mounted devices.
xIBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide

Chapter 1. Introduction
This Installation Guide contains instructions for setting up your IBM®System x3950
Type 8878 or System x3950 EType 8879 server and basic instructions for installing
some options. More detailed instructions for installing options are in the User’s
Guide on the IBM System x™Documentation CD, which comes with the server. This
document contains information about:
vSetting up and cabling the server
vStarting and configuring the server
vInstalling some options
vSolving problems
The System x3950 Eserver is for expansion purposes only and comes without a
microprocessor or memory, but you can install the components to make the System
x3950 Eserver functionally identical to the System x3950 server. You can
interconnect System x3950 and System x3950 Eservers to create multi-node
configurations using two, four, or eight nodes, for up to 32-way operation. ASystem
x3950 server must serve as the primary node in the multi-node configuration.
If firmware and documentation updates are available, you can download them from
the IBM Web site. The server might have features that are not described in the
documentation that comes with the server, and the documentation might be updated
occasionally to include information about those features, or technical updates might
be available to provide additional information that is not included in the server
documentation. To check for updates, go to http://www.ibm.com/servers/eserver/
support/xseries/index.html, select System x3950 or System x3950 Efrom the
Hardware list, and click Go.For firmware updates, click the Download tab. For
documentation updates, click the Install and use tab, and click Product
documentation.
Note: Changes are made periodically to the IBM Web site. Procedures for locating
firmware and documentation might vary slightly from what is described in this
document.
The server (standard on some models only) comes with an IBM ServerGuide™
Setup and Installation CD to help you configure the hardware, install device drivers,
and install the operating system.
The server comes with alimited warranty. You can obtain up-to-date information
about the server and other IBM server products at http://www.ibm.com/systems/x/.
Record information about the server in the following table. You will need this
information when you register the server with IBM.
Product name IBM System x3950 or System x3950 Eserver
Machine type 8878 or 8879
Model number _____________________________________________
Serial number _____________________________________________
©Copyright IBM Corp. 2006 1

The model number and serial number are on the ID labels, one located on the
lower-right front of the bezel and the other at the rear of the right side, as shown in
the following illustration.
The illustrations in this document show the System x3950 server, unless otherwise
noted.
ID labels
For alist of supported options for the server, go to the ServerProven®Web site at
http://www.ibm.com/servers/eserver/serverproven/compat/us/.
See the Rack Installation Instructions document for complete rack installation and
removal instructions.
The IBM System xDocumentation CD
The IBM System xDocumentation CD contains documentation for the server in
Portable Document Format (PDF) and includes the IBM Documentation Browser to
help you find information quickly.
Hardware and software requirements
The IBM System xDocumentation CD requires the following minimum hardware
and software:
vMicrosoft®Windows®XP, Windows 2000, or Red Hat Linux.
v100 MHz microprocessor.
v32 MB of RAM.
vAdobe Acrobat Reader 3.0 (or later) or xpdf, which comes with Linux operating
systems.
Using the Documentation Browser
Use the Documentation Browser to browse the contents of the CD, read brief
descriptions of the documents, and view documents using Adobe Acrobat Reader or
xpdf. The Documentation Browser automatically detects the regional settings in use
in your server and displays the documents in the language for that region (if
available). If adocument is not available in the language for that region, the
English-language version is displayed.
Use one of the following procedures to start the Documentation Browser:
2IBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide

vIf Autostart is enabled, insert the CD into the CD drive. The Documentation
Browser starts automatically.
vIf Autostart is disabled or is not enabled for all users, use one of the following
procedures:
–If you are using aWindows operating system, insert the CD into the drive and
click Start --> Run.In the Open field, type
e:\win32.bat
where eis the drive letter of the drive, and click OK.
–If you are using Red Hat Linux, insert the CD into the drive; then, run the
following command from the /mnt/cdrom directory:
sh runlinux.sh
Select the server from the Product menu. The Available Topics list displays all the
documents for the server. Some documents might be in folders. Aplus sign (+)
indicates each folder or document that has additional documents under it. Click the
plus sign to display the additional documents.
When you select adocument, adescription of the document appears under Topic
Description.To select more than one document, press and hold the Ctrl key while
you select the documents. Click View Book to view the selected document or
documents in Acrobat Reader or xpdf. If you selected more than one document, all
the selected documents are opened in Acrobat Reader or xpdf.
To search all the documents, type aword or word string in the Search field and
click Search.The documents in which the word or word string appears are listed in
order of the most occurrences. Click adocument to view it, and press Crtl+F to use
the Acrobat search function or Alt+F to use the xpdf search function within the
document.
Click Help for detailed information about using the Documentation Browser.
Notices and statements in this document
The caution and danger statements that appear in this document are also in the
multilingual Safety Information document, which is on the IBM System x
Documentation CD. Each statement is numbered for reference to the corresponding
statement in the Safety Information document.
The following notices and statements are used in this document:
vNote: These notices provide important tips, guidance, or advice.
vImportant: These notices provide information or advice that might help you avoid
inconvenient or problem situations.
vAttention: These notices indicate potential damage to programs, devices, or
data. An attention notice is placed just before the instruction or situation in which
damage could occur.
vCaution: These statements indicate situations that can be potentially hazardous
to you. Acaution statement is placed just before the description of apotentially
hazardous procedure step or situation.
vDanger: These statements indicate situations that can be potentially lethal or
extremely hazardous to you. Adanger statement is placed just before the
description of apotentially lethal or extremely hazardous procedure step or
situation.
Chapter 1. Introduction 3

Features and specifications
The following information is asummary of the features and specifications of the
server. Depending on the server model, some features might not be available, or
some specifications might not apply.
Notes:
1. Racks are marked in vertical increments of 4.45 cm (1.75 inches). Each
increment is referred to as aunit, or “U.” A1-U-high device is 4.45 cm (1.75
inches) tall.
2. Power consumption and heat output vary depending on the number and type of
optional features installed and the power-management optional features in use.
3. These levels were measured in controlled acoustical environments according to
the procedures specified by the American National Standards Institute (ANSI)
S12.10 and ISO 7779 and are reported in accordance with ISO 9296. Actual
sound-pressure levels in agiven location might exceed the average values
stated because of room reflections and other nearby noise sources. The
declared sound-power levels indicate an upper limit, below which alarge
number of computers will operate.
4IBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide

Table 1. Features and specifications
Microprocessor (not standard on
System x3950 Emodels):
vIntel®Xeon™MP
v1MB (minimum) Level-2 cache
v4MB or 8MB Level-3 cache
v667 MHz front-side bus (FSB)
vSupport for up to four microprocessors
Note: Use the Configuration/Setup Utility
program to determine the type and speed
of the microprocessors.
Memory (not standard on System x3950
Emodels):
vMinimum: 2GB depending on server
model, expandable to 64 GB
vType: 333 MHz, registered, ECC,
PC2-3200 double data rate (DDR) II,
SDRAM
vSizes: 1GB, 2GB, or 4GB in pairs
vConnectors: Two-way interleaved, four
dual inline memory module (DIMM)
connectors per memory card
vMaximum: Four memory cards, each
card containing two pairs of PC2-3200
DDRII DIMMs
Drives:
vSlim DVD-ROM: IDE
vSerial Attached SCSI (SAS) hard disk
drives
Expansion bays:
vSix SAS, 2.5-inch bays
vOne 12.7-mm removable-media drive
bay (DVD drive installed, standard on
some models only)
Expansion slots:
Six PCI-X 2.0 hot-plug 266 MHz/64-bit
slots
Upgradeable microcode:
System BIOS, diagnostics, service
processor, BMC, and SAS microcode
Power supply:
vStandard: Two dual-rated power
supplies
–1300 watts at 220 Vac input
–650 watts at 110 Vac input
v
Hot-swappable at 220 Vac only
Size:
v3U
vHeight: 128.35 mm (5.05 in.)
vDepth: 715 mm (28.15 in.)
vWidth: 440 mm (17.32 in.)
vWeight: approximately 38.5 kg (85 lb)
when fully configured or 31.75 kg (70
lb) minimum
Integrated functions:
vBaseboard management controller
vIBM EXA-32 Chipset with integrated
memory and I/O controller
vService processor support for Remote
Supervisor Adapter II SlimLine
vLight path diagnostics
vThree Universal Serial Bus (USB) ports
(2.0)
–Two on rear of server
–One on front of server
vBroadcom 5704C dual 10/100/1000
Gigabit Ethernet controllers
vATI 7000-M video
–16 MB video memory
–SVGA compatible
v
Mouse connector
vKeyboard connector
vSerial connector
vSMP Expansion Ports
Acoustical noise emissions:
vSound power, idle: 6.6 bel declared
vSound power, operating: 6.6 bel
declared
Environment:
vAir temperature:
–Server on:
-10° to 35°C (50° to 95°F); altitude:
0to 914 m(3000 ft). If the server
has adual-core microprocessor, at
maximum power reduce the 35°C
by 1°C per 300 mabove sea level,
or the microprocessor might throttle
to remain within the internal thermal
specifications.
-10 to 32°C (50° to 90°F); altitude:
914 mto 2133 m(7000 ft).
–Server off: 10° to 43°C (50.0° to
109.4°F); maximum altitude: 2133 m
(6998.0 ft)
v
Humidity:
–Server on: 8% to 80%
–Server off: 8% to 80%
Heat output:
Approximate heat output in British thermal
units (Btu) per hour:
vMinimum configuration: 1364 Btu (400
watts) per hour
vMaximum configuration: 5780 Btu (1700
watts) per hour
Electrical input:
vSine-wave input (50-60 Hz) required
vInput voltage low range:
–Minimum: 100 Vac
–Maximum: 127 Vac
vInput voltage high range:
–Minimum: 200 Vac
–Maximum: 240 Vac
v
Approximate input kilovolt-amperes (kVA):
–Minimum: 0.40 kVA
–Maximum: 1.6 kVA
Scalability support:
Maximum configuration:
vEight nodes
v32-way operation
v128 DIMMs
v48 SAS hard disk drives
v48 PCI-X adapters
Chapter 1. Introduction 5

Major components of the server
Blue on acomponent indicates touch points, where you can grip the component to
remove it from or install it in the server, open or close alatch, and so on.
Orange on acomponent or an orange label on or near acomponent indicates that
the component can be hot-swapped, which means that if the server and operating
system support hot-swap capability, you can remove or install the component while
the server is running. (Orange can also indicate touch points on hot-swap
components.) See the instructions for removing or installing aspecific hot-swap
component for any additional procedures that you might have to perform before you
remove or install the component.
The following illustration shows the major components in the server.
FRONT
Memory
card
Hot-swap
power
supply
I/O board
Hot-swap fans
92 mm
Hot-swap fans
80 mm
Operator information
panel
Hot-swap
hard disk
drive
Hard disk
drive filler
panel
CD-ROM drive
Bezel
Heat sink
Microprocessor
Microprocessor
baffle
PCI-X divider
DIMM
Microprocessor tray
VRM
Top cover
Air baffle
PCI-X slots
6IBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide

Chapter 2. Installing options
This chapter provides basic instructions for installing hardware options in the server.
These instructions are intended for users who are experienced with setting up IBM
server hardware. If you need more detailed instructions, see the User’s Guide on
the IBM System xDocumentation CD.
Installation guidelines
Before you begin installing options, read the following information:
vRead the safety information that begins on page v, “Working inside the server
with the power on” on page 8, and the guidelines in “Handling static-sensitive
devices” on page 9. This information will help you work safely.
vWhen you install your new server, take the opportunity to download and apply
the most recent firmware updates. This step will help to ensure that any known
issues are addressed and that your server is ready to function at maximum levels
of performance. To download firmware updates for your server, go to
http://www.ibm.com/servers/eserver/support/xseries/index.html, select System
x3950 or System x3950 Efrom the Hardware list, click Go,and then click the
Download tab. For additional information about tools for updating, managing,
and deploying firmware, see the System xand xSeries®Tools Center at
http://publib.boulder.ibm.com/infocenter/toolsctr/v1r0/index.jsp.
vBefore you install optional hardware devices, make sure that the server is
working correctly. Start the server, and make sure that the operating system
starts, if an operating system is installed, or that a19990305 error code is
displayed, indicating that an operating system was not found but the server is
otherwise working correctly. If the server is not working correctly, see Chapter 6,
“Solving problems,” on page 57 for diagnostic information.
vObserve good housekeeping in the area where you are working. Place removed
covers and other parts in asafe place.
vIf you must start the server while the cover is removed, make sure that no one is
near the server and that no tools or other objects have been left inside the
server.
vDo not attempt to lift an object that you think is too heavy for you. If you have to
lift aheavy object, observe the following precautions:
–Make sure that you can stand safely without slipping.
–Distribute the weight of the object equally between your feet.
–Use aslow lifting force. Never move suddenly or twist when you lift aheavy
object.
–To avoid straining the muscles in your back, lift by standing or by pushing up
with your leg muscles.
v
Make sure that you have an adequate number of properly grounded electrical
outlets for the server, monitor, and other devices.
vBack up all important data before you make changes to disk drives.
vHave asmall flat-blade screwdriver available.
vYou do not have to turn off the server to install or replace hot-swap power
supplies, hot-swap fans, hot-plug adapters, or hot-plug Universal Serial Bus
(USB) devices. However, you must turn off the server before you perform any
steps that involve removing or installing adapter cables.
vBlue on acomponent indicates touch points, where you can grip the component
to remove it from or install it in the server, open or close alatch, and so on.
©Copyright IBM Corp. 2006 7

vOrange on acomponent or an orange label on or near acomponent indicates
that the component can be hot-swapped, which means that if the server and
operating system support hot-swap capability, you can remove or install the
component while the server is running. (Orange can also indicate touch points on
hot-swap components.) See the instructions for removing or installing aspecific
hot-swap component for any additional procedures that you might have to
perform before you remove or install the component.
vWhen you are finished working on the server, reinstall all safety shields, guards,
labels, and ground wires.
vFor alist of supported optional devices for the server, see http://www.ibm.com/
servers/eserver/serverproven/compat/us/.
System reliability guidelines
To help ensure proper cooling and system reliability, make sure that:
vEach of the drive bays has adrive or afiller panel installed in it.
vIf the server has redundant power, each of the power-supply bays has apower
supply installed in it.
vThere is adequate space around the server to allow the server cooling system to
work properly. Leave approximately 50 mm (2 in.) of open space around the front
and rear of the server. Do not place objects in front of the fans. For proper
cooling and airflow, replace the server cover before turning on the server.
Operating the server for extended periods of time (more than 30 minutes) with
the server cover removed might damage server components.
vYou have followed the cabling instructions that come with optional adapters.
vYou have replaced afailed fan within 48 hours.
vYou have replaced ahot-swap drive within 2minutes of removal.
vYou do not run the server without the air baffle installed. Operating the server
without the air baffle might cause the microprocessor or microprocessors to
overheat.
vMicroprocessor sockets 2, 3, and 4each always contain either amicroprocessor
baffle or amicroprocessor and heat sink.
vFor redundant and hot-swappable operation, the power supplies are connected to
200-240 Vac.
Working inside the server with the power on
Attention: Static electricity that is released to internal server components when
the server is powered-on might cause the server to halt, which could result in the
loss of data. To avoid this potential problem, always use an electrostatic-discharge
wrist strap or other grounding system when working inside the server with the
power on.
The server supports hot-swap devices and is designed to operate safely while it is
turned on and the cover is removed. Follow these guidelines when you work inside
aserver that is turned on:
vAvoid wearing loose-fitting clothing on your forearms. Button long-sleeved shirts
before working inside the server; do not wear cuff links while you are working
inside the server.
vDo not allow your necktie or scarf to hang inside the server.
vRemove jewelry, such as bracelets, necklaces, rings, and loose-fitting wrist
watches.
8IBM System x3950 Type 8878 and System x3950 EType 8879: Installation Guide