HP E1Z75UT E1Z75UT#ABA, E1Z74UT E1Z74UT#ABA, E1Z77UT E1Z77UT#ABA manual Guide Screw Device

{Connect a media card reader USB 3.0 cable with a USB 3.0 to USB 2.0 adapter to the USB 2.0 connector on the system board labeled MEDIA.

{The power cable for the drives has two branches coming off the system board connector. The first branch is a three-headed cable with the first connector routed to the 5.25-inch bay, the second connector routed to the 3.5-inch bay, and the third (two-wire) connector routed to the slim optical drive bay. The second branch is a three-headed cable with the first connector routed to the bottom 2.5-inch hard drive bay, the second connector routed to the middle 3.5-inch hard drive bay, and the third connector routed to the top 3.5-inch hard drive bay.

{You must 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 silver and blue isolation mounting guide screws and four silver 6-32 standard guide screws) installed on the side of the drive bays. The

6-32 isolation mounting screws are required for 3.5-inch hard drives installed in the 3.5-inch hard drive bays. The 6-32 standard guide screws are required for a USB 3.0 media card reader installed in the 3.5-inch optional drive bay. M3 metric guide screws for 5.25-inch optical drives and M3 isolation mounting guide screws for 2.5-inch hard drives are not provided. If you are replacing a drive, remove the guide screws from the old drive and install them in the new drive.

No.	Guide Screw	Device
1	Silver Standard 6-32 Guide Screws	USB 3.0 Media Card Reader
2	Silver and Blue 6-32 Isolation Mounting Screws	Secondary Hard Drive in 3.5-inch Hard Drive Bay

52 Chapter 5 Removal and replacement procedures: Tower (TWR)