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Preparing to Service the System 67
▼ Perform Electrostatic Discharge Prevention
Measures
Many components housed within the chassis can be damaged by electrostatic
discharge. To protect these components from damage, perform the following steps
before opening the chassis for service.
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:
■ Antistatic bag used to wrap a replacement part
■ ESD mat
■ A 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.
Related Information
■ “General Safety Information” on page 57
▼ Remove the Top Cover
1. Unlatch the fan module door.
Pull the release tabs back to release the door.
2. Press the top cover release button and slide the top cover to the rear about a 0.5
inch (12.7 mm).
The following figure shows the release button in a SPARC Enterprise T5120 server.
The top cover release button in a SPARC Enterprise T5220 server is similar.
Note – In newer versions of the top cover, the release button is located closer to the
edge of the cover. Except for this difference in location, the release mechanism
operates in the same manner in both versions.