Dell D31M Owner's Manual page 117

NOTE: Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup
program. You must make the appropriate changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can
reconnect the cables correctly after you replace the system board.
2. Remove the side cover.
3. Remove the front bezel.
4. Remove the memory module.
5. Remove the WLAN.
6. Remove the M.2 2230 SSD/M.2 2280
7. Remove the 3.5-inch hard
8. Remove the graphics
9. Remove the powered
NOTE: This step is required only if the system is configured with powered GPU.
10. Remove the VR heatsink.
11. Remove the processor fan and 125 W heat-sink assembly
12. Remove the system fan.
13. Remove the processor.
About this task
The following image indicates the connectors on your system board.
1. ATX CPU power connector
2. ATX CPU power connector
3. Memory module connectors
4. Power button connector
5. SD card reader connector
6. M.2 PCIe SSD connector
7. M.2 PCIe SSD connector
8. SATA0 connector (blue)
SSD.
drive.
card.
GPU.
.
Removing and installing Field Replaceable Units (FRUs) 117