SRPL8 Server System Product Guide 131
CAUTIONS
Electrostatic discharge (ESD) & ESD protection: ESD can damage
disk drives, boards, and other parts. We recommend that you do all
procedures in this chapter only at an ESD-protected workstation. If one is
not available, provide some ESD protection by wearing an antistatic wrist
strap attached to chassis groundany unpainted metal surfaceon your
system 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 system, place it
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.
Chassis covers, proper cooling, and airflow: For proper cooling and
airflow, always install the chassis covers before turning on the system.
Operating the system without the covers in place can damage system parts.
Installing or removing jumpers: A jumper is a small, plastic-encased
conductor that slips over two jumper pins. Newer 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 gently grip, but not
squeeze, with the pliers or other tool you use to remove a jumper; you might
bend or break the stake pins on the board.