IBM 72332MU Installation Guide - Page 22

Limitations in a single-power-supply server operating at 110 V ac installation

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v Back up all important data before you make changes to disk drives. v Have a small flat-blade screwdriver available. v You 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. v Blue on a component indicates touch points, where you can grip the component to remove it from or install it in the server, open or close a latch, and so on. v Orange on a component or an orange label on or near a component 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 a specific hot-swap component for any additional procedures that you might have to perform before you remove or install the component. v When you are finished working on the server, reinstall all safety shields, guards, labels, and ground wires. v For a list of supported optional devices for the server, see http://www.ibm.com/ servers/eserver/serverproven/compat/us/. Limitations in a single-power-supply server operating at 110 V ac installation If your server has only one power supply operating at 110 V ac, it will not support some optional devices. In a single-power-supply server operating at 110 V ac the following resources are supported: v Up to two 2.66 GHz microprocessors or up to four slower microprocessors v Sixteen DIMMs v Three PCI expansion slots, if you do not install a video adapter or other high powered PCI devices System reliability guidelines To help ensure proper cooling and system reliability, make sure that: v Each of the drive bays has a drive or a filler panel installed in it. v There 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 you turn on the server. Operating the server for extended periods of time (more than 30 minutes) with the server cover removed might damage server components. v You have followed the cabling instructions that come with optional adapters. v You have replaced a failed fan within 48 hours. v You have replaced a hot-swap drive within 2 minutes of removal. v For redundant and hot-swappable power supply operation, the power supplies are connected to 200-240 V ac. v Microprocessor socket 2 always contains either a heat-sink blank or a microprocessor and heat sink. 10 IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: Installation Guide

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v
Back up all important data before you make changes to disk drives.
v
Have a small flat-blade screwdriver available.
v
You 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.
v
Blue on a component indicates touch points, where you can grip the component
to remove it from or install it in the server, open or close a latch, and so on.
v
Orange on a component or an orange label on or near a component 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 a specific
hot-swap component for any additional procedures that you might have to
perform before you remove or install the component.
v
When you are finished working on the server, reinstall all safety shields, guards,
labels, and ground wires.
v
For a list of supported optional devices for the server, see http://www.ibm.com/
servers/eserver/serverproven/compat/us/.
Limitations in a single-power-supply server operating at 110 V ac
installation
If your server has only one power supply operating at 110 V ac, it will not support
some optional devices. In a single-power-supply server operating at 110 V ac the
following resources are supported:
v
Up to two 2.66 GHz microprocessors or up to four slower microprocessors
v
Sixteen DIMMs
v
Three PCI expansion slots, if you do not install a video adapter or other high
powered PCI devices
System reliability guidelines
To help ensure proper cooling and system reliability, make sure that:
v
Each of the drive bays has a drive or a filler panel installed in it.
v
There 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 you turn on the server.
Operating the server for extended periods of time (more than 30 minutes) with
the server cover removed might damage server components.
v
You have followed the cabling instructions that come with optional adapters.
v
You have replaced a failed fan within 48 hours.
v
You have replaced a hot-swap drive within 2 minutes of removal.
v
For redundant and hot-swappable power supply operation, the power supplies
are connected to 200-240 V ac.
v
Microprocessor socket 2 always contains either a heat-sink blank or a
microprocessor and heat sink.
10
IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: Installation Guide