System board connectors
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 x16 downshifted to
a x4
x4PCIEXP white Expansion Card
3 PCI Express x16 X16PCIEXP black Expansion Card
4 Battery BAT black Battery
5 DIMM3 (Channel A) DIMM3 black Memory Module
6 DIMM1 (Channel B) DIMM1 black Memory Module
7 M.2 WLAN WLAN black M.2 WLAN card
8 M.2 WLAN WLAN black M.2 WLAN card
9 SATA 3.0 SATA1 light blue Primary Hard Drive
10 SATA 3.0 SATA2 light blue Any SATA Device other than the Primary
Hard Drive
11 SATA 3.0 SATA0 dark blue Any SATA Device other than the Primary
Hard Drive
System board connectors 13
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