Lenovo 7515-J9U User Guide - Page 19
Locating parts on the system board, shows the locations of the parts on the system board.
UPC - 884942137211
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Locating parts on the system board Figure 4 shows the locations of the parts on the system board. Figure 4. System board parts locations 1 Microprocessor 2 Microprocessor fan connector 3 Memory slots (2) 4 Thermal sensor connector 5 Diskette drive connector 6 24-pin power connector 7 Battery 8 Cover presence switch connector (Intrusion switch connector) (some models) 9 SATA connectors (4) 10 Clear CMOS (Complementary Metal Oxide Semiconductor)/Recovery jumper 11 Power fan connector 12 Front panel connector 13 Front USB connectors (2) 14 Serial (COM 2) connector 15 Front audio connector 16 Internal speaker connector 17 PCI card slots (2) 18 PCI Express x1 card slot 19 PCI Express x16 graphics card slot 20 System fan connector 21 4-pin power connector Chapter 1. Product overview 11