HP Desktop Pro A 300 G3 Maintenance and Service Guide - Page 48

Power supply

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Power supply For a list of available power supplies, see Computer major components on page 5. The power supply is secured to the rear of the chassis with four screws. Two cables connect the power supply to the system board. 1. Prepare the computer for disassembly (Preparation for disassembly on page 16). 2. Remove the access panel (Access panel on page 17). 3. Remove the front bezel (Front bezel on page 23). 4. If installed, remove the optical drive (Removing the optical drive on page 25) 5. Remove the drive cage (Removing the drive cage on page 28) 6. Remove the four Torx T15 screws that connect the power supply to the rear of the chassis. 7. Disconnect the power supply cables from the PWRCPU and PWR system board connectors (1). 40 Chapter 4 Removal and replacement procedures

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Power supply
For a list of available power supplies, see
Computer major components
on page
5
.
The power supply is secured to the rear of the chassis with four screws. Two cables connect the power supply
to the system board.
1.
Prepare the computer for disassembly (
Preparation for disassembly
on page
16
).
2.
Remove the access panel (
Access panel
on page
17
).
3.
Remove the front bezel (
Front bezel
on page
23
).
4.
If installed, remove the optical drive (
Removing the optical drive
on page
25
)
5.
Remove the drive cage (
Removing the drive cage
on page
28
)
6.
Remove the four Torx T15 screws that connect the power supply to the rear of the chassis.
7.
Disconnect the power supply cables from the PWRCPU and PWR system board connectors
(1)
.
40
Chapter 4
Removal and replacement procedures