NEC MH4000 User Manual page 100

5-16
Removing the Processor Board
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Upgrades and Options
Warning: If the system has been running, any
processor and heat sink already installed on the board
will be hot. To avoid the possibility of a burn while
removing the processor/memory board, let the
components cool for 10 minutes before continuing with
the procedures described here.
1. Power off the system and remove the left side panel
as described earlier in this chapter.
Notice: Observe static precautions. Use an antistatic
wrist strap.
2. Remove the processor board support panel described
earlier in this chapter, see Removing a Board
Support Panel.
3. Holding the board by its edges, carefully pull it out
until the edge connectors are free (see Figure 5-6).
4. Store board in an antistatic protective wrapper if
you are not installing or removing a processor at
this time.
Figure 5-6. Processor Board
A
B
C
D
Processor board connectors on
system board
A System board
B Processor #1 board connector
C Processor #2 board connector
D Processor board