Lenovo 6435, 6438 Working inside the server with the power on, Handling static-sensitive devices

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.

You might be instructed to turn on the server while the cover is off, to look at system-board LEDs. Follow these guidelines when you work inside a server that is turned on:

vAvoid wearing loose-fitting clothing on your forearms. Button long-sleeved shirts before working inside the server; do not wear cuff links while you are working inside the server.

vDo not allow your necktie or scarf to hang inside the server.

vRemove jewelry, such as bracelets, necklaces, rings, and loose-fitting wrist watches.

vRemove items from your shirt pocket, such as pens and pencils, that could fall into the server as you lean over it.

vAvoid dropping any metallic objects, such as paper clips, hairpins, and screws, into the server.

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:

vLimit your movement. Movement can cause static electricity to build up around you.

vThe use of a grounding system is recommended. For example, wear an electrostatic-discharge wrist strap, if one is available.

vHandle the device carefully, holding it by its edges or its frame.

vDo not touch solder joints, pins, or exposed circuitry.

vDo not leave the device where others can handle and damage it.

vWhile the device is still in its static-protective package, touch it to an unpainted metal part of the server for at least 2 seconds. This drains static electricity from the package and from your body.

vRemove 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.

vTake additional care when you handle devices during cold weather. Heating reduces indoor humidity and increases static electricity.

Removing the cover

To remove the cover, complete the following steps:

1.Read the safety information that begins on page v and “Installation guidelines” on page 19.

Chapter 2. Installing optional devices 21