Replacing A Power Supply; Table 7-5 Power Supply Replacement Procedure - Compaq 4200 User Manual

Replacing a Power Supply

NOTE: Replacement power supply assemblies do not include a variable speed blower.
Therefore you must remove the operational blower from the defective power supply and install
it on the new supply before you remove the defective power supply.
Complete the procedures in Table 7–3 to replace a power supply.
1. When you are replacing the supply in a single power supply configuration before it has failed, you
must stop all data transfers.
2. Disconnect the AC power cord from the defective supply.
3. Remove the operational blower from the defective power supply by pushing in on the two blower
tabs
CAUTION: Removing a power supply significantly changes the airflow within the
enclosure. The system could shutdown unless the power supply is replaced within 5
minutes.
Table 7–5 Power Supply Replacement Procedure
WARNING: The blower blades rotate at a high speed and do not stop immediately
when power is removed. Avoid touching the rotating blades when removing the
blower.
and while pulling the blower element to the rear.
1
1
CXO6852A
Replacing CRUs 7–9