Hardware Reference Guide

System board connectors
Refer to the following illustration and table to identify the system board connectors for your model.
Table 2-1 System board connectors
Item System board connector System board label Color Component
1 PCI Express ×16 downshifted to
a ×4
×4PCIEXP White Expansion card
2 PCI Express ×1 ×1PCIEXP2 Black Expansion card
3 PCI Express ×1 ×1PCIEXP1 Black Expansion card
4 PCI Express ×16 ×16PCIEXP Black Expansion card
5 DIMM4 (Channel A) DIMM4 White Memory module
6 DIMM3 (Channel A) DIMM3 Black Memory module
7 DIMM2 (Channel B) DIMM2 White Memory module
8 DIMM1 (Channel B) DIMM1 Black Memory module
9 Battery BAT Black Battery
10 M.2 WLAN 2230 WIRELESS Black M.2 WLAN card
11 SATA 3.0 SATA0 Dark blue Primary hard drive
12 SATA 3.0 SATA2 Light blue Any SATA device other than the primary
hard drive
13 SATA 3.0 SATA1 Light blue Any SATA device other than the primary
hard drive
14 USB 3.0 SD RDR Black USB 3.0 device, such as a USB 3.0
memory card reader
15 M.2 SSD 2280 SSD2 Black M.2 SSD storage card
16 M.2 SSD 2280 SSD1 Black M.2 SSD storage card
System board connectors 13