Using An Antistatic Wrist Strap; Using An Antistatic Mat; Esd Handling Procedure; Removing The Top Cover - Sun Microsystems Sun Fire X4450 Service Manual

2.7.1.1

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
X4450 Server. However, antistatic wrist straps are still included with options.
2.7.1.2

Using an Antistatic Mat

Place ESD-sensitive components such as motherboards, memory, and other PCBs on
an antistatic mat.
2.7.2

ESD Handling Procedure

1. Prepare an antistatic surface to set parts on during the removal, installation, or
replacement process.
Place ESD-sensitive components such as the printed circuit boards on an antistatic
mat. The following items can be used as an antistatic mat:
■
■
■
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.
2.8

Removing the Top Cover

The top cover and fan door are integrated.
Note – Some field-replaceable units (FRUs) require removal of the rear cover.
2-10 Sun Fire X4450 Server Service Manual • November 2009
Antistatic bag used to wrap a Sun replacement part
Sun ESD mat, part number 250-1088
A disposable ESD mat (shipped with some replacement parts or optional
system components)