Note:
See “Front view” and “Rear view” for additional component descriptions.
Figure 1. System board
| 1 4-pin power connector | 2 Microprocessor fan connector |
| 3 Power button connector | 4 Internal speaker connector |
| 5 Auxiliary fan connector 2 | 6 10-pin power connector |
| 7 Auxiliary fan connector 1 | 8 SATA power connectors (2) |
| 9 Clear CMOS (Complementary Metal Oxide Semiconductor) / Recovery jumper | 10 SATA 3.0 connectors (3) |
| 11 M.2 solid-state drive slot | 12 M.2 Wi-Fi card slot |
| 13 Thermal sensor connector | 14 Illuminated red dot connector |
| 15 Front USB 2.0 connector | 16 Parallel connector |
| 17 Serial (COM2) connector | 18 PCI Express x1 card slots (2) |
| 19 PCI Express x16 graphics card slot | 20 System fan connector |
| 21 E-lock connector | 22 Microprocessor socket |
| 23 Cover presence switch connector (Intrusion switch connector) | 24 Coin-cell battery |
| 25 Memory slot (DIMM1) | 26 Memory slot (DIMM2) |
| 27 Memory slot (DIMM3) | 28 Memory slot (DIMM4) |
| 29 Keyboard and mouse connector |