Alienware Aurora R15 - System-Board Components

System-board components
1. Front I/O-panel cable 2. SYSFAN_LED3 connector
3. Upper front-chassis connector (FAN_SYS3) 4. Coin-cell battery
5. Wireless-card slot 6. SYSFAN_LED2 connector
7. Lower front-chassis fan connector (FAN_SYS2) 8. SATA 6 Gbps drive connector (HDD1)
9. SATA 6 Gbps drive connector (HDD2) 10. Power-supply connector (ATX1)
11. Solid-state drive slot (M.2 PCIe SSD-1) 12. Solid-state drive slot (M.2 PCIe SSD-0)
13. Air-cooling fan connector (FAN CPU) 14. PCI-Express x4 slot (SLOT3)
15. PCI-Express x4 slot (SLOT2) 16. PCI-Express x16 mechanical/x16 electrical slot (SLOT1)
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