Dell Inspiron 3800 - Manual (Page 65)

Figure 23. System Board Assembly
10. Lift the system board assembly out of the bottom case assembly.
Be sure to transfer the memory module(s) to the replacement system-board assembly.
Insert the diskette that accompanied the replacement system board assembly into the diskette drive, and turn on the
computer. Follow the instructions on the display screen.
After replacing the system board assembly, be sure to enter the system ’s service tag number into the BIOS of the
replacement system-board assembly.
Thermal Cooling Assembly
Figure 24. Thermal Cooling Assembly
To remove the thermal cooling assembly, perform the following steps.
NOTICE: To avoid damaging the system board, remove the power cable, the battery, and the
second battery (if installed) before you service the computer.
1. Remove the main battery.
2. Remove the device from the media bay.
3. Remove the keyboard assembly .
4. Remove the display assembly .
5. Remove the palmrest assembly .
6. Remove the microprocessor module .
7. Remove the modem (if present).
1 System board assembly
2 Bottom case assembly
3 4-mm screws with captive
washers (2)
1 4-mm screws (2)
2 Thermal cooling assembly and
exhaust fan