Disconnecting Power From The Server; Performing Electrostatic Discharge Prevention Measures; Removing The Top Cover - Sun Microsystems Sun Fire T2000 Service Manual

5.1.5

Disconnecting Power From the Server

Caution – The system supplies standby power to the circuit boards even when the
system is powered off.
●
Disconnect both power cords from the power supplies.
Note – The following FRU replacements do not require that power be removed:
DIMMs and PCI cards.
5.1.6 Performing Electrostatic Discharge Prevention
Measures
1. Prepare an antistatic surface on which to set parts during removal and installation.
Place ESD-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
■
Disposable ESD 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. Do this after you disconnect the power
cords from the server.
5.1.7

Removing the Top Cover

All field-replaceable units (FRUs) that are not hot-swappable require the removal of
the top cover.
5-6 Sun Fire T2000 Server Service Manual • July 2007