180 SPARCstation 20 Service Manual • July 1996
FIGURE 11-44 OpenBoot PROM Orientation
NVRAM/TOD
To remove and install a NVRAM/TOD, proceed as follows.
Removing a NVRAM/TOD
1. Remove power from the system.
See “Removing Power from the System” on page 45.
2. Remove the cover and attach the wrist strap.
See Chapter 7.
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing it on any surface.
Socket notch
OpenBoot PROM notch
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