Specifications

CONFIDENTIAL

Removing the MLB (Main Logic Board)

1. Remove the chassis cover (refer to Chassis Cover Removal/Installation on page 6).

2. Place the computer on its side with the MLB on the bottom and the open side facing up.

3. Remove the base from the chassis. The base is retained with two screws on the back in the bottom

center of the computer and one directly on the bottom of the computer. Slide the base toward the rear

of the computer to remove it.

4. Remove the PCI card(s)

(refer to Removing PCI Cards on page 14).

5. Remove the Adaptec SCSI card (refer to Adaptec SCSI Card Removal/Installation on page 18).

6. Remove PCI card and assembly (refer to PCI Riser Card Removal/Installation on page 16).

7. Remove the CPU card (refer to Removing the CPU on page 11).

8. Remove the cache card (refer to Removing the Cache on page 13).

9. Remove the RAM (refer to RAM Removal/Installation on page 9).

10. Disconnect the cables attached to the MLB. Disconnect the power cable by pressing the

retaining clip facing the front of the computer, then pulling straight up. Disconnect all other

cables by pulling them straight up from their sockets.

11. Remove the eight screws that secure the logic board to the chassis.

12. Lift the edge of the MLB closest to the bezel and slide the MLB out of the chassis at an angle.

Removal/Installation of MLB

Figure 16: Main logic

board removal

Retaining screws