Hardware Reference Guide - HP Compaq Business PC dc5100 Small Form Factor Model
2-26 www.hp.com Hardware Reference Guide
Hardware Upgrades
The 3.5-inch bay is located underneath the optical drive. To install a 
drive into the 3.5-inch bay:
✎
Install guide screws to ensure the drive will line up correctly in the 
drive cage and lock in place. HP has provided extra guide screws 
(four 6-32 standard screws and four M3 metric screws), installed in 
the front of the chassis, under the computer cover. The hard drive uses 
6-32 standard screws. All other drives use M3 metric screws. The 
HP-supplied M3 metric screws are black and the HP-supplied 6-32 
standard screws are silver.
1. Follow the procedure described in the “Removing an Optical 
Drive” section to remove the optical drive and access the 3.5-inch 
drive bay.
2. Position the guide screws on the drive into the J-slots in the drive 
bay 1. Then, slide the drive toward the rear of the computer 2 to 
secure the drive in the J slots.
Installing a Drive into the 3.5-inch Drive Bay (Hard Drive shown)
3. Slide the drive cage back into the chassis until it locks into place.










