Background; Concurrency; Time Of Day (Tod) Battery Weight; Required Ssrs And Roles - IBM Power775 Service Procedure

Power775 Time of Day (TOD) Battery Service Procedure
2.4

Background

The battery provides Real Time Clock(RTC) function for the DCCA unit when 350VDC is not present on the DCCA power
cables. When 350VDC is present at the DCCA power connection, the RTC function will be powered by a regulator within
the DCCA circuitry. There is a blue cover placed over the top of the battery.
2.5

Concurrency

The battery replacement is concurrently maintainable. The CEC will be powered on with 350 Volts DC during this
procedure.
2.6

Time of Day (TOD) Battery Weight

The battery and battery cover have negligible weight.
2.7

Required SSRs and Roles

This service procedure requires 1 SSR.
2.8

Estimated Service Time

20 minutes
2.9

P7IH Hand Tool Kit Required Tools

None
PN: 41U8496, EC N44172
Figure 1 Blue Battery Cover Location
Figure 2 Battery Location with Blue Battery Cover Removed
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