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SPARCcenter 2000 System Board Manual—October 1994
1
1.3 System Board Description
Figure 1-1 identifies the major components on the system board.
Table 1-1
Safety Precautions
Item
Problem
Precaution
Ac power cord
ESD (Electrostatic
discharge)
The power cord provides a ground path for the cabinet. Do not unplug the
cord, even if the power is turned off.
Electric shock
Turn the cabinet circuit breaker OFF before opening the cabinet for service.
ESD mat & wrist
or foot strap
ESD
Use a cushioned, antistatic mat and a grounding strap for these
procedures.
System boards
ESD
Handle a system board by the edges only.Store boards in antistatic bags.
Breakage
Parts on a board may break if the board is flexed. Keep the board vertical
when out of the card cage. Place the board on a cushioned mat for service.
Springfingers
Personal injury
Springfingers have sharp edges, so handle springfinger-equipped screens
and boards carefully.
RFI leakage
The screens and panels used on the cabinet suppress radio frequency
interference (RFI) and are required by law in many localities.
Damaged springfingers
Replace any screen or board having broken or twisted springfingers with a
new assembly.
Cover panels
System damage and
overheating
Install all cover panels to keep out foreign objects and prevent overheating.
Filler panels
System damage and
overheating
Install filler panels in all unused card cage slots. Open slots severely
reduce the cooling capability of the system.