CHAPTER 4: Upgrading Your Computer

9Make sure that the positive (+) side of the new battery is facing up (usually the side that the battery type and model number are etched into), then press the battery into the socket until it snaps into place.

10Replace the side panel by following the instructions in “Replacing the side panel” on page 37.

11Reconnect all external cables and the power cord.

12Turn on your computer.

13While your computer starts, press and hold the F1 key. The main menu of the BIOS Setup utility opens.

14In the BIOS Setup utility, restore any settings that you wrote down in Step 3.

15Save all your settings and exit the BIOS Setup utility.

Replacing the system board

To replace the system board:

1Remove the side panel by following the instructions in “Removing the side panel” on page 35.

2Remove all expansion cards by following the directions in “Adding or replacing an expansion card” on page 51.

3Remove all memory modules by following the directions in “Installing memory” on page 40.

4Disconnect all the power and data cables from the system board, noting their locations and orientation. (You will reconnect the cables after you install the new board.)

Tip

You can label each cable with tape to make it easier to re-connect them later.

5Remove the four screws that secure the power supply to your computer, then slide it out of your computer.

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