HP Compaq dx7200 MT Reference Manual page 143

Removal and Replacement Procedures— Slim Tower (ST) Chassis
8. Rotate the power supply to its full upright position 1, then lift the power supply straight up
and out of the chassis 2.
To install the power supply, reverse the removal procedure.
CAUTION: When installing the power supply cables, make sure they are properly positioned so they
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are not cut by the drive cage and are not pinched by the rotating power supply.
Service Reference Guide, dx7200 390812-001 7–35