Lenovo 8253 Computer Hardware 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.
The following illustration shows the locations of parts on the system board for
some models.
1 Microprocessor and heat sink 10SATA connectors (2)
2 Microprocessor fan connector 11Clear CMOS/Recovery jumper
3 Memory connector 1 12Power LED connector
4 Memory connector 2 13Front USB connector
5 Power connector 14Front audio connector
6 Diskette drive connector 15PCI connectors
7 Secondary IDE connector 16AGP connector
8 Primary IDE connector 17System fan connector
9 Battery 1812v power connector
4 Hardware Replacement Guide
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