Removing an Internal 3.5-inch Hard Drive
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.
Remove/disengage any security devices that prohibit opening the computer.
Remove all removable media, such as compact discs or USB flash drives, from the computer.
Turn off the computer properly through the operating system, then turn off any external devices.
Disconnect the power cord from the power outlet and disconnect any external devices.
long as the system is plugged into an active AC outlet. You must disconnect the power cord to
avoid damage to the internal components of the computer.
Remove the access panel.
Disconnect the power cable (1) and data cable (2) from the back of the hard drive.
Chapter 2 Hardware Upgrades
Regardless of the power-on state, voltage is always present on the system board as
Disconnecting the Hard Drive Cables