Dell XPS 8950 Service Manual page 52

About this task
The following image indicates the slots and connectors on your system board.
1. processor socket
2. processor-power cables
3. U-DIMM slots
From the left (a>b>c>d):
a. DIMM 3
b. DIMM 1
c. DIMM 4
d. DIMM 2
4. SATA power cable
5. M.2 2230/2280 solid-state drive slot
6. M.2 2230 wireless-card slot
7. power-button cable
8. chassis-fan cable
9. optical-drive/hard-drive data cable (SATA 3)
10. hard-drive data cable (SATA 0)
11. hard-drive data cable (SATA 1)
12. hard-drive data cable (SATA 2)
13. system-board power cable
14. coin-cell battery socket
15. M.2 2230/2280 solid-state drive slot
16. PCIe x16 slot (SLOT 2)
17. PCIe x4 slot (SLOT 4)
18. PCIe x4 slot (SLOT 1)
19. fan and heat-sink assembly fan cable
20. processor-fan cable
21. processor-fan pump cable
The following image(s) indicate the location of the system board and provides a visual representation of the removal procedure.
52 Removing and installing components