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      Locating parts on the system board - ThinkCentre M81 (type 0268, 1730, 4166, 4169, 5030, 5048, 5069, 7517)

      Figure 1. Shows the locations of the parts on the system board.

      System board part locations

      Figure 1. System board part locations

      1. 4-pin power connector15. 15 eSATA connector
      2. Microprocessor16. Power fan connector
      3. Microprocessor fan connector17. Front panel connector (for connecting LED indicators and power switch)
      4. Memory slot 1 (DIMM1)18. Front USB connector 1 (for connecting USB ports 1 and 2 on the front bezel)
      5. Memory slot 2 (DIMM2)19. Front USB connector 2 (for connecting additional USB devices)
      6. Memory slot 3 (DIMM3)20. Serial (COM2) connector
      7. Memory slot 4 (DIMM4)21. Internal speaker connector
      8. Thermal sensor connector22. Front audio connector
      9. 24-pin power connector23. PCI card slots (2)
      10. Battery24. PCI Express x1 card slot
      11. Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery jumper25. PCI Express x16 graphics card slot
      12. Parallel connector26. System fan connector
      13. SATA connector 1 (SATA 3.0 connector)27. Cover presence switch connector (Intrusion switch connector)
      14. SATA connectors 2 and 3 (SATA 2.0 connectors)28. PS/2 keyboard and mouse connector
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      • Alias ID: MIGR-77342
      • Document ID: PD008986
      • Last Updated :17 Jun 2014
      • © 2016 Lenovo