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
No. 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 Memory module
4 DIMM2 DIMM2 White Memory module
5 DIMM1 DIMM1 White Memory module
6 SATA 3.0 SATA2 Light blue Optical drive
7 M.2 SSD SSD Black M.2 SSD storage card
8 SATA 3.0 SATA1 Light blue Optical drive
9 M.2 WLAN WLAN Black M.2 WLAN card
10 SATA 3.0 SATA0 Dark blue Primary hard drive
12 Chapter 2 Hardware upgrades