Sun Oracle Fire X4440, Service Manual

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Chapter 2 Preparing to Service the System 2-11
Caution – You must disconnect both power supplies before servicing any of the
components documented in this chapter.
2.8.1.1 Using an Antistatic Wrist Strap
Wear an antistatic wrist strap and use an antistatic mat when handling components
such as drive assemblies, circuit boards, or PCI cards. When servicing or removing
server components, attach an antistatic strap to your wrist and then to a metal area
on the chassis. Following this practice equalizes the electrical potentials between you
and the server.
Note – An antistatic wrist strap is not included in the accessory kit for the Sun Fire
X4440 Server. However, antistatic wrist straps are still included with options.
2.8.1.2 Using an Antistatic Mat
Place static-sensitive components such as motherboards, memory, and other PCBs on
an antistatic mat.
2.8.2 Antistatic Handling Procedure
1. Prepare an antistatic surface to set parts on during the removal, installation, or
replacement process.
Place static-sensitive components such as the printed circuit boards on an
antistatic mat. The following items can be used as an antistatic mat:
■
Antistatic bag used to wrap a Sun replacement part
■
Sun ESD mat, part number 250-1088
■
A disposable antistatic mat (shipped with some replacement parts or optional
system components)
2. Attach an antistatic wrist strap.
When servicing or removing server components, attach an antistatic strap to your
wrist and then to a metal area on the chassis.