Gateway ALR 9250R User Manual page 17

Opening the top cover
The top cover is hinged so you can open it to access the internal
components without removing it entirely.
1. Power down the system.
2. While observing the static electricity precautions on page 2, turn each
of the three slotted retainers 90 degrees counterclockwise. See the
illustration Opening the Top Cover below.
3. Lift the lid covering the front portion of the system to access the power
supply subsystem, the fans, the hard disk drive mounting bracket, the
3.5-inch diskette drive, the data cables, and the RAID bay backplane.
To open the top cover
Opening the Top Cover
Slotted
retainers
Chapter 1: Getting Started 3