Lenovo 0126/90A5 Maintenance Manual

Identifying parts on the motherboardThe motherboard (sometimes called the planar or system board) is the main circuit board in your computer.It provides basic computing functions and supports a variety of devices that are factory-installed or thatyou can install later. The following illustration shows the location of connectors and components on thefront of the motherboard.Lenovo H515s5 641 2 3 79131410111215168 BB BB BB BB BB BB BB BB BB BB BB BB BB1. System fan header 9. LPC debug header2. Clear CMOS jumper 10. Front panel connector3. Battery 11. System fan header4. Microprocessor and heat sink 12. PCI express X 16 adapter slot5. Microprocessor fan header 13. Front USB connectors (2)6. SATA connectors (2) 14. Mini PCI-E slot7. Memory slots (2) 15. PCI express X 1 adapter slot8. Hard disk drive power connector 16. Front audio connectorChapter 7. Locating connectors, controls and components 25