9.Reconnect the power cord and turn on the computer.

10.Lock any security devices that were disengaged when the access panel was removed.

Removing and Replacing the Primary 3.5-inch Internal Hard Drive

NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive.

The preinstalled 3.5-inch hard drive is located under the power supply. To remove and replace the hard drive:

1.Prepare the computer for disassembly (Preparation for Disassembly on page 92).

2.Remove the access panel (Access Panel on page 93).

3.Rotate the drive cage for internal drives to its upright position.

4.Rotate the power supply to its upright position. The hard drive is located beneath the power supply.

Figure 7-25Raising the Power Supply

5.Disconnect the power cable and data cable from the back of the hard drive.

Drives 115

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HP E3S36UT#ABA, E3S33UT#ABA, Pro 6305 C1E21UT#ABA manual