Dell OptiPlex 790 - Recommended Tools; Turning Off Your Computer

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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SMA LL FORM FACT OR C O MPUTER (S FF ) V IE W
Number Name Number Name
1 P1 power connector(POWER) 12 LPC debug connector(LPC_DEBUG)
2 System fan connector(FAN_HDD) 13 Battery connector(BATTERY)
3 Internal speaker connector(INT_SPKR) 14 P2 power connector(12V_PWRCONN)
4 Buzzer(BEEP) 15 Processor connector(N/A)
5 PCI-e 4x connector(SLOT2) 16 CPU fan connector(FAN_CPU)
6 PCI-e 16x connector(SLOT1) 17 Power switch connector(PWR_SW)
7 SATA 2 connector(SATA2) 18 Memory connector(DIMM3)
8 SATA 1 connector(SATA1) 19 Memory connector(DIMM1)
9 SATA 0 connector(SATA0) 20 Memory connector(DIMM4)
10 Front IO connector(FRONTPANEL) 21 Memory connector(DIMM2)
11 Intrusion switch connector(INTRUDER)