HP Z400 HP Z400 Workstation Maintenance and Service Guide - Page 101

Power supply, Removing the power supply

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Power supply This section describes how to remove and install a power supply. Removing the power supply To remove the power supply: 1. Power down the workstation (see Predisassembly procedures on page 69). 2. Disconnect power from the workstation (see Predisassembly procedures on page 69). 3. Remove the side access panel (see Removing the side access panel on page 72). 4. Remove the airflow guide (see Removing the airflow guide on page 92). 5. Disconnect all of the power supply cables from the system board and all peripheral devices (hard drives, optical drives, and others as needed). 6. Remove the four screws from the rear of the chassis . 7. Slide the power supply inward then up to remove it from the chassis 2. Figure 5-23 Removing power supply Installing the power supply To install the power supply, reverse the previous steps. ENWW Removing and installing components 89

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Power supply
This section describes how to remove and install a power supply.
Removing the power supply
To remove the power supply:
1.
Power down the workstation (see
Predisassembly procedures
on page
69
).
2.
Disconnect power from the workstation (see
Predisassembly procedures
on page
69
).
3.
Remove the side access panel (see
Removing the side access panel
on page
72
).
4.
Remove the airflow guide (see
Removing the airflow guide
on page
92
).
5.
Disconnect all of the power supply cables from the system board and all peripheral devices (hard
drives, optical drives, and others as needed).
6.
Remove the four screws from the rear of the chassis
.
7.
Slide the power supply inward then up to remove it from the chassis
2
.
Figure 5-23
Removing power supply
Installing the power supply
To install the power supply, reverse the previous steps.
ENWW
Removing and installing components
89