HPE ProLiant DL20, Maintenance And Service Manual

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Replacing the HPE DL20 Gen9 290-W Non-hot plug power
supply
About this task
WARNING:
To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all times.
• Unplug the power cord from the power supply to disconnect power to the equipment.
• Do not route the power cord where it can be walked on or pinched by items placed against it. Pay
particular attention to the plug, electrical outlet, and the point where the cord extends from the
equipment
WARNING:
To reduce the risk of injury from electric shock hazards, do not open power supplies. Refer all
maintenance, upgrades, and servicing to qualified personnel.
WARNING:
To reduce the risk of personal injury from hot surfaces, allow the drives and the internal system
components to cool before touching them.
CAUTION:
To prevent damage to electrical components, properly ground the server before beginning any
installation procedure. Improper grounding can cause ESD.
Procedure
1. If installed, remove the security bezel .
2. Power down the server .
3. Release the power cord from the strain relief clip.
4. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
5. Do one of the following:
• Extend the server from the rack
• Remove the server from the rack
6. Remove the access panel .
7. Remove the air baffle .
8. Remove the HPE Smart Storage Battery and holders .
9. Remove the power supply.
Replacing the HPE DL20 Gen9 290-W Non-hot plug power supply 69