HP VECTRA VL800 - Manual (Page 41)

2 Installing and Replacing Hardware Parts in Your PC
Replacing the Hard Drive Bay and Speaker Assembly
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3 Ensure that the plastic clips on the front of the hard disk drive bay and
speaker assembly are lined-up with their associated locations.
4 From the front of the PC, gently push towards you the right-hand side of
the hard disk drive bay and speaker assembly until it clicks in place.
Repeat this procedure on the left-hand side of the hard disk drive bay
and speaker assembly.
5 Reconnect the speaker and control panel cables to their connectors on
the system board.
6 Reconnect the data and power cables. Replace the primary hard disk
drive, the secondary hard disk drive tray, and their retaining screws.
7 Replace the PC’s cover and front bezel (refer to page 25). Reconnect all
the power and telecommunications cables.