System reliability guidelinesTo help ensure proper system cooling and system reliability, make sure that thefollowing requirements are met:v Each of the drive bays has a drive or a filler panel and electromagneticcompatibility (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 towork properly. Leave approximately 50 mm (2.0 in.) of open space around thefront and rear of the server. Do not place objects in front of the fans. For propercooling 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 theserver without the air baffles might cause the device to overheat.Handling static-sensitive devicesAttention: Static electricity can damage the server and other electronic devices. Toavoid damage, keep static-sensitive devices in their static-protective packages untilyou are ready to install them.To reduce the possibility of damage from electrostatic discharge, observe thefollowing precautions:v Limit your movement. Movement can cause static electricity to build up aroundyou.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 unpaintedmetal surface on the outside of the server for at least 2 seconds. This drainsstatic electricity from the package and from your body.v Remove the device from its package and install it directly into the serverwithout setting down the device. If it is necessary to set down the device, put itback into its static-protective package. Do not place the device on the servercover or on a metal surface.v Take additional care when you handle devices during cold weather. Heatingreduces indoor humidity and increases static electricity.Chapter 2. Installing optional devices 35
