Final answer:
To replace a PSU in a DSS8440 server, follow these steps: power off the server, disconnect and remove the faulty PSU, insert and secure the new PSU, reconnect all cables, and power on the server for testing.
Step-by-step explanation:
Sequence of Steps to Replace a PSU in a DSS8440 Server:
- Make sure the server is powered off and unplugged.
- Locate the faulty power supply unit (PSU) in the server chassis.
- Disconnect all cables connected to the PSU.
- Remove the screws or fasteners securing the PSU in place.
- Gently pull out the PSU from its slot.
- Insert the new PSU into the vacant slot and securely fasten it.
- Reconnect all cables to the new PSU.
- Plug the server back in and power it on to test the new PSU.
It's important to refer to the DSS8440 server manual or manufacturer documentation for specific instructions and precautions.