HP rp5800 Maintenance And Service Manual page 156

Computer seems to be locked up.
Cause
Program in use has stopped responding to commands.
The removable hard drive has no power to the hard drive enclosure.
Cause
The lock on the enclosure is not turned to the "ON" position.
Power cable from the computer power supply to the
enclosure frame is not properly connected.
The removable hard drive is not recognized by the computer.
Cause
The removable hard drive carrier is not fully seated in the
enclosure frame or the hard drive is not fully seated in the
carrier.
The removable hard drive enclosure is beeping and the green LED is flashing.
Cause
Fan failure alarm on the removable hard drive enclosure has
been activated.
146 Appendix E Troubleshooting Without Diagnostics
Solution
Attempt the normal Windows "Shut Down" procedure. If this
fails, press the power button for four or more seconds to turn
off the power. To restart the computer, press the power
button again.
Solution
Insert the key and turn the lock clockwise 90 degrees. The
green LED on the front of the enclosure should be on.
Check the power supply to make sure it is properly
connected to the rear of the enclosure frame.
Solution
Push the carrier into the enclosure frame so that the
connector on the rear of the frame is properly seated. If this
does not solve the problem, turn off the computer, remove
the carrier, and check to see if the connector on the hard
drive is properly seated in the carrier.
Solution
Shut down the computer and contact HP for a replacement
enclosure.