HP E1Z75UT E1Z75UT#ABA, E1Z74UT E1Z74UT#ABA, E1Z77UT E1Z77UT#ABA manual Pwrcpu Pwrcmd PWR

Models: E1Z77UT E1Z77UT#ABA E1Z74UT E1Z74UT#ABA E1Z75UT E1Z75UT#ABA

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Power supply

Description

Spare part number

 

 

Power supply, 92% efficient

702455-001

 

 

Power supply, 90% efficient

702456-001

 

 

Power supply, standard

702457-001

 

 

WARNING! To reduce potential safety issues, only the power supply provided with the computer, a

replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer.

The power supply is located at the rear of the chassis. It is held in place by three Torx screws outside of the chassis and a release lever inside of the chassis.

WARNING! Voltage is always present on the system board when the computer is plugged into an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer.

1.Prepare the computer for disassembly (Preparation for disassembly on page 85).

2.Remove the access panel (Access panel on page 86).

3.Rotate the drive cage to the upright position.

4.Disconnect all power cables from the following system board connectors:

{PWRCPU

{PWRCMD

{PWR

112

Chapter 6 Removal and replacement procedures: Small Form Factor (SFF)

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HP E1Z75UT E1Z75UT#ABA, E1Z74UT E1Z74UT#ABA, E1Z77UT E1Z77UT#ABA manual Pwrcpu Pwrcmd PWR