Dell OptiPlex 980 Technical Guidebook - Page 5

DT System Board 1 Processor power connector (12VPOWER) 2 Processor connector (CPU) 3 Memory module connectors (DIMM_4) 4 Memory module connectors (DIMM_2) 5 Memory module connectors (DIMM_3) 6 Memory module connectors (DIMM_1) 7 Battery socket (BATTERY) 8 Password jumper (PSWD) 9 SATA drive connectors (SATA0) 10 SATA drive connectors (SATA1) 11 SATA drive connectors (SATA2) 12 Thermal sensor connector (rear) 13 Front-panel connector (FRONTPANEL) 14 External Power USB connector 15 Internal USB connector 16 Power connector (POWER) OptiPlex XE Technical Guidebook 17 Serial Port Jumper (J3 & J4) 18 Power connector (24V POWER) 19 Serial Port Jumper (J1 & J2) 20 PCI Express x16 card connector(SLOT1) 21 PCI card connectors (SLOT2) 22 PCI card connectors ( SLOT3) 23 PCI Express x1 card connector(SLOT4) 24 Intruder connector (INTRUDER) 25 RTC reset jumper (RTCRST) 26 Internal buzzer (SPKR) 27 Speaker connector (INT_SPKR) 28 Thermal Sensor connector (front) 29 Fan connector (FAN_HDD) 30 Connector for optional wireless card 31 Fan connector (FAN_CPU) Page 5