Lenovo THINKSERVER 3797 Hardware Maintenance Manual page 22

v The use of a grounding system is recommended. For example, wear an
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
v Remove the device from its package and install it directly into the server without
v Take additional care when handling devices during cold weather. Heating reduces
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ThinkServer RD220 Types 3729, 3779, 3797, and 3798: Hardware Maintenance Manual
electrostatic-discharge wrist strap, if one is available. Always use an
electrostatic-discharge wrist strap or other grounding system when working inside
the server with the power on.
metal surface on the outside of the server for at least 2 seconds. This drains
static electricity from the package and from your body.
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.
indoor humidity and increases static electricity.