Dell Alienware Aurora R15 Service Manual page 90

19. Liquid cooling pump fan connector (FAN PUMP)
21. Power-supply connector (ATX3)
23. Power-supply connector (ATX2)
25. Top-chassis fan connector two (FAN_SYS5)
27. Memory-module slot, DIMM2
29. Side-light connector (SIDE LIGHT)
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
90 Removing and installing components
20. Liquid-cooling pump LED connector
22. Top-chassis fan connector one (FAN_SYS4)
24. CPU socket
26. Memory-module slot, DIMM1
28. SATA power connector (SATA PWR)