HP Dc7900 Service Reference Guide: HP Compaq dc7900 Business PC - Page 103
Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay, CAUTION
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Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay NOTE: A 3.5-inch drive may be a diskette drive or a media card reader. A 5.25-inch drive may be an optical drive or a media card reader with a 5.25-inch adapter kit attached. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 63). 2. Remove the computer access panel (Computer Access Panel on page 70). 3. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then remove the bezel blank. See Bezel Blanks on page 72 for more information. 4. Install two guide screws in the lower holes on each side of the drive (1). NOTE: Optical drives, diskette drives, and media card readers use M3 metric guide screws. Eight extra metric guide screws are provided on the diskette drive bracket under the access panel. The HP-supplied metric screws are black. Refer to Drives on page 83 for an illustration of the extra M3 metric guide screws location. If you are replacing a drive, transfer the guides screws from the old drive to the new one. Figure 7-31 Installing a 5.25-Inch Drive in a Minitower (top) and Desktop (bottom) 5. Install the drive in the desired drive bay by sliding it all the way into the front of the drive cage until it locks (2). The drivelock automatically secures the drive in the bay. CAUTION: The bottom 5.25-inch drive bay has a shorter depth than the upper two bays. The bottom bay supports a half-height drive or other device that is no more than 14.5 cm (5.7 inches) in depth. Do not try to force a larger drive, such as an optical drive, into the bottom bay. This could cause damage to the drive and the system board. The use of unnecessary force when installing any drive into the drive bay may result in damage to the drive. Drives 91