System Reliability Guidelines; Working Inside The Server With The Power On - IBM System x3400 Type 7975 Installation Manual

v You do not have to turn off the server to install or replace hot-swap power
v Blue on a component indicates touch points, where you can grip the component
v Orange on a component or an orange label on or near a component indicates
v When you have to access the inside of the server, you might find it easier to lay
v When you are finished working on the server, reinstall all safety shields, guards,
v For a list of supported options for the server, see http://www.ibm.com/servers/

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
v There is adequate space around the server to allow the server cooling system to
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 You do not operate the server without the DIMM air baffle installed. Operating the

Working inside the server with the power on

Attention:
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 (some models) 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.
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System x3400 Types 7973, 7974, 7975, and 7976: Installation Guide
supplies, hot-swap fans, or hot-plug Universal Serial Bus (USB) devices.
However, you must turn off the server before performing any steps that involve
removing or installing adapter cables.
to remove it from or install it in the server, open or close a latch, and so on.
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 and installing a specific
hot-swap component for any additional procedures that you might have to
perform before you remove or install the component.
the server on its side.
labels, and ground wires.
eserver/serverproven/compat/us/.
compatibility (EMC) shield installed in it.
work properly. Leave approximately 50 mm (2.0 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.
When installing the server in a rack, make sure that space is available around
the server to enable the server cooling system to work properly. See the
documentation that comes with the rack for additional information.
server without the air baffle might cause the DIMMs to overheat.
Static electricity that is released to internal server components when