HP Compaq 8100 Elite Hardware Reference Manual page 35

2. Disconnect the drive cables from the rear of the drive, or, if you are removing a media card reader,
disconnect the USB and 1394 cables from the system board as indicated in the following
illustrations.
NOTE:
NOTE:
Figure 28
Figure 29
ENWW
On some models, the media card reader does not include a 1394 port or cable.
Your computer may look different than the illustration shown below.
Disconnecting the Media Card Reader USB Cable
Disconnecting the Media Card Reader 1394 Cable
Installing and Removing Drives 29