Power Supply - HP Pro 3400 Maintenance And Service Manual

Power Supply

Description
Power supply, 300W (Active PFC; not for use in Brazil)
Power supply, 300W
WARNING!
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.
NOTE: When installing a new power supply, be sure to set the red switch to the setting (230 V or
115 V) appropriate for the country in which the computer is used. Spare power supplies normally
arrive set for 230 V.
1. Prepare the computer for disassembly
2. Remove the access panel
3. Disconnect all power cables from the mass storage devices and from the system board
connectors labeled ATX_CPU and PWR.
4. From the rear of the computer, remove the four Torx screws that secure the power supply to the
chassis.
5. Inside of the unit, press the power supply release latch on the chassis base (1).
82 Chapter 7 Removal and Replacement Procedures – Microtower Chassis
Voltage is always present on the system board when the computer is plugged into an
(Access Panel on page
(Preparation for Disassembly on page
50).
Spare part number
656721-001
689005-001
664862-001
692096-001
49).