IBM 72336RU User Manual - Page 41

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

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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 system cooling and system reliability, make sure that the following requirements are met: v Each of the drive bays has a drive or a filler panel and electromagnetic compatibility (EMC) shield 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 as soon as possible. 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. 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 might result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when you work inside the server with the power on. The server supports hot-plug, hot-add, and 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 a server that is turned on: Chapter 2. Installing optional devices 29

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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 system cooling and system reliability, make sure that the
following requirements are met:
v
Each of the drive bays has a drive or a filler panel and electromagnetic
compatibility (EMC) shield 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 as soon as possible.
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.
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 might result in the
loss of data. To avoid this potential problem, always use an electrostatic-discharge
wrist strap or other grounding system when you work inside the server with the
power on.
The server supports hot-plug, hot-add, and 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 a server that is turned on:
Chapter 2. Installing optional devices
29