Using a #1 Phillips bit, remove the two (2) 8mm screws from the front left.

Using a #1 Phillips bit, remove the two (2) 6mm screws from the right side in the battery well.

Using a #1 Phillips bit, remove the single (1) 25mm screw from the center.

The following is only relevant if you need to remove the CD-ROM/FDD assembly, or HDD

Using a #1 Phillips bit, remove the two (2) 8mm screws from the middle left of the case.