HP dx7500 - Microtower PC Service & Reference Manual page 79

b. If you are removing a media card reader, disconnect the USB cable from the system board.
Figure 7-22
5. Remove the two retainer screws that secure the drive to the bay (1) then slide the drive forward
and out of the bay (2).
Figure 7-23 Removing a 3.5-inch Device (Media Card Reader Shown)
NOTE: To install an external 3.5-inch drive, refer to
Bay on page 70.
Disconnecting the Media Card Reader Cable
Installing a Drive into the 3.5-inch External Drive
Drives 69