Lenovo 88116CU, User Manual

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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 that are factory-installed or that you can install later.
The following illustration shows the locations of parts on the system board.
1
Diskette drive connector
13
PCI Express (x16) graphics adapter
connector (some models)
2
Speaker connector
14
PCI Express (x1) adapter connector
3
Memory connector 4
15
PCI adapter connector 1
4
Memory connector 3
16
PCI adapter connector 2
5
Memory connector 2
17
System fan connector (not used)
6
Memory connector 1
18
Battery
7
Front panel I/O connector
19
Temperature sensor connector
8
Serial connector (COM2)
20
Microprocessor fan connector
9
Serial ATA IDE connectors (5)
21
Microprocessor
10
Clear CMOS/Recovery jumper
22
Microprocessor heat sink
11
Cover presence switch (tamper sw)
connector
23
12v power connector
12
Power supply connector
Installing memory
Your computer has four connectors for installing dual inline memory modules
(DIMMs).
When installing DDR2 type memory modules, the following rules apply:
Chapter 3. Installing options
23