Dell Studio 1557 Service Manual page 14

NOTE: This procedure assumes that you have already removed the processor heat sink and are ready to replace it.
1. Follow the instructions in Before You
2. Align the four captive screws on the thermal-cooling assembly processor cover with the screw holes on the system board and tighten the screws in
sequential order.
3. Replace the system board on the computer base.
4. Replace the six screws that secure the system board to the computer base.
5. Connect the AC adapter connector cable, USB cable, fan cable, and the subwoofer cable to their respective connectors on the system board (see
Replacing the System Board
6. Connect the ExpressCard cables to their respective connectors on the system board (see
7. Replace the optical drive (see
8. Slide the battery into the battery bay until it clicks into place.
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Assembly).
Replacing the Optical Drive).
Replacing the ExpressCard Board).