Hardware Reference Guide

System board connections
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 X16PCIEXP Black Expansion card
2 PCI Express ×4 X4PCIEXP Black Expansion card
3 Battery BAT Black Battery
4 DIMM4 (Channel A) DIMM4 White Memory module
5 DIMM3 (Channel A) DIMM3 Black Memory module
6 DIMM2 (Channel B) DIMM2 White Memory module
7 DIMM1 (Channel B) DIMM1 Black Memory module
8 M.2 SSD SSD Black M.2 SSD storage card
9 SATA 3.0 SATA1 Light blue Optical drive
10 M.2 WLAN WLAN Black M.2 WLAN card
11 SATA 3.0 SATA0 Dark blue Hard drive
12 SATA 3.0 SATA1 Light blue Optical drive
14 Chapter 2 Hardware upgrades