Turning Off The Computer System (Without Ups); Turning Off The Computer System (With Ups) - HP A3765A Installation Manual

Turning Off the Computer System (Without UPS)

The computer has no remote turn off sensor for ac power. If the cabinet switch is put in the
OFF position before turning off the computer switch, the computer senses that as an ac
power fail condition. Without a UPS attached to the D Class computer, there is no battery
backup for the computer.
CAUTION DO NOT turn the cabinet power switch OFF before shutting down the D
Class computer. All processes and data that have not been stopped or saved
will be aborted or lost.
1. Put the computer power switch in the OFF position. This has to be done first so that the
removal of ac by the cabinet power switch is not seen as an ac power failure by the
computer.
2. Put the cabinet power switch in the OFF position. This removes ac from all the
components mounted in the cabinet, except the computer.
3. At this point, external peripherals can be turned off if necessary.

Turning Off the Computer System (With UPS)

If the cabinet ON/OFF switch is put in the OFF position, all components connected to the
cabinet PDU will be turned off, this does not turn off the computer connected to the UPS.
1. Put the computer power switch in the OFF position.
2. Put the console power switch in the OFF position.
3. Put the UPS Output switch in the OFF (O) position.
4. Put the cabinet power switch in the OFF position. This removes ac from all the
components mounted in the cabinet, except the computer connected to the UPS.
5. At this point, external peripherals can be turned off if necessary.
Chapter 3
Turning Off the Computer System (Without UPS)
Cabinet Operation
3-3