Dell Dimension 5100C - Manual (Page 44)

Power Supply DC Connector Pin Assignments
DC Power Connector P1
(default)
Password features are disabled.
RTCRST
(default)
Real-time clock reset in normal operation.
Clear CMOS settings.
Pin Number Signal Name 18-AWG Wire
1 +3.3 VDC Orange
2 +3.3 VDC Orange
3 COM Black
4 +5 VDC Red
5 COM Black
6 +5 VDC Red
7 COM Black
8 POK* Gray
9 +5 VFB Purple
10 +12 VDC Yellow
11 +12 VDC * Yellow
12 +3.3 VDC Orange
13 +3.3 VDC Orange
14 -12 VDC Blue
15 COM Black
16 PS_ON* Blue