System Reliability Guidelines; Handling Static-Sensitive Devices - IBM System x3750 M4 Type 8722 Installation And Service Manual

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 Each of the power-supply bays has a power supply or a filler installed in it.
v There is adequate space around the server to allow the server cooling system to
work properly. Leave approximately 50 mm (2.0 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 you turn on the server.
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 fan within 30 seconds of removal.
v You have replaced a hot-swap drive within 2 minutes of removal.
v You have replaced a failed hot-swap power supply within 2 minutes of removal.
v You do not operate the server without the air baffles installed. Operating the
server without the air baffles might cause the device to overheat.

Handling static-sensitive devices

Attention: Static electricity can damage the server and other electronic devices. To
avoid damage, keep static-sensitive devices in their static-protective packages until
you are ready to install them.
To reduce the possibility of damage from electrostatic discharge, observe the
following precautions:
v Limit your movement. Movement can cause static electricity to build up around
you.
v Handle the device carefully, holding it by its edges or its frame.
v Do not touch solder joints, pins, or exposed circuitry.
v Do not leave the device where others can handle and damage it.
v While the device is still in its static-protective package, touch it to an unpainted
metal surface on the outside of the server for at least 2 seconds. This drains
static electricity from the package and from your body.
v Remove the device from its package and install it directly into the server
without setting down the device. If it is necessary to set down the device, put it
back into its static-protective package. Do not place the device on the server
cover or on a metal surface.
v Take additional care when you handle devices during cold weather. Heating
reduces indoor humidity and increases static electricity.
Chapter 2. Installing optional devices
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