Lenovo ThinkCentre A61e - Manual (Page 17)

Identifying parts on the system board
The system board (sometimes called the planar or motherboard) is the main circuit
board in your computer. It provides basic computer functions and supports a
variety of devices.
Figure 4 shows the location of parts on the system board for some computer
models.
1 Microprocessor and heat sink 9 Modem daughter card (MDC)
connector
2 Memory connectors (2) 10 Express card USB connector
3 Thermal sense cable connector 11 Express card PCIe connector
4 Front USB connector 12 Media card reader connector
5 Front panel connector 13 Internal speaker connector
6 Battery 14 Front audio connector
7 SATA IDE connectors (2) 15 Internal power distribution connector
8 Clear CMOS/Recovery jumper 16 System fan connector
Figure 4. Locating parts on the system board
Chapter 2. Overview 9