Dell Inspiron 1720 (Mid 2007) - Manual (Page 141)

Adding and Replacing Parts
141
4 Using the pull-tab on the hard drive, pull the hard drive out of the hard
drive bay.
Replacing the Hard Drive
1 Remove the new drive from its packaging.
Save the original packaging for storing or shipping the hard drive.
NOTICE:
Use firm and even pressure to slide the drive into place. If you use
excessive force, you may damage the connector.
NOTICE:
If you are installing only one hard drive, ensure you install the new drive
in the primary hard drive bay.
NOTE:
The secondary hard drive is optional.
2 Place the hard drive into the bay and press down to fully seat it.
3 Replace and tighten the screws on the hard drive.
4 Replace the hard drive cover and tighten the screws.
1 secondary hard drive bay 2 screws (3)
3 primary hard drive 4 pull-tab
3
1
2
4