System board connections
Refer to the following illustration and table to identify the system board connectors for your model.
No. System Board Connector System Board Label Color Component
1 PCI Express x1 X1PCIEXP3 black Expansion Card
2 PCI Express x1 X1PCIEXP2 black Expansion Card
3 PCI Express x1 X1PCIEXP1 black Expansion Card
4 PCI Express x16 X16PCIEXP black Expansion Card
5 DIMM3 (Channel A) DIMM3 black Memory Module
6 DIMM1 (Channel B) DIMM1 black Memory Module
7 Battery BAT black Battery
8 SATA 3.0 SATA1 light blue Any SATA Device other than the
Primary Hard Drive
9 SATA 3.0 SATA2 light blue Any SATA Device other than the
Primary Hard Drive
10 SATA 3.0 SATA0 dark blue Primary Hard Drive
10 Chapter 2 Hardware upgrades