Lenovo THINKSERVER TD230 - Manual (Page 8)

the server AC power cord from the wall outlet. Make sure the AC power cord is unplugged before you
open the chassis to add or remove the Remote Management Module.
• Hazardous conditions, devices and cables: Hazardous electrical conditions may be present on
power, telephone, and communication cables. Turn off the server and disconnect the power cord,
telecommunications systems, networks, and modems attached to the server before opening it. Otherwise,
personal injury or equipment damage can result.
• Electrostatic discharge (ESD) and ESD protection: ESD can damage disk drives, boards, and other
parts. We recommend that you perform all procedures in this chapter only at an ESD workstation. If one
is not available, provide some ESD protection by wearing an antistatic wrist strap attached to chassis
ground — any unpainted metal surface — on your server when handling parts.
• ESD and handling boards: Always handle boards carefully. They can be extremely sensitive to ESD.
Hold boards only by their edges. After removing a board from its protective wrapper or from the server,
place the board component side up on a grounded, static free surface. Use a conductive foam pad if
available but not the board wrapper. Do not slide board over any surface.
• Installing or removing jumpers: A jumper is a small plastic encased conductor that slips over two
jumper pins. Some jumpers have a small tab on top that you can grip with your fingertips or with a pair of
fine needle nosed pliers. If your jumpers do not have such a tab, take care when using needle nosed
pliers to remove or install a jumper; grip the narrow sides of the jumper with the pliers, never the wide
sides. Gripping the wide sides can damage the contacts inside the jumper, causing intermittent problems
with the function controlled by that jumper. Take care to grip with, but not squeeze, the pliers or other
tools you use to remove a jumper, or you may bend or break the pins on the board.
2 ThinkServer TD230 Remote Management User Guide