Dell OptiPlex 330 (Late 2007) - Manual (Page 77)

Power Supply DC Connector Pin Assignments
DC Power Connector P1
(12VPOWER) (DIMM_1, DIMM_2)
5 SATA drive connectors
(SATA0, SATA1) 6 front-panel connector
(FRONTPANEL)
7 power connector
(POWER) 8 SATA drive connectors
(SATA2, SATA3)
9 RTC reset jumper (RTCRST) 10 password jumper (PSWD)
11 battery socket (BATTERY) 12 PCI Express x16 card connector
(SLOT1)
13 PCI card connectors
(SLOT2 and SLOT3)
14 internal buzzer (SPKR)
15 serial/ PS/2 connector (PS2/SER2) 16 fan connector (FAN_CPU)
17 floppy drive connector (FLOPPY)
Pin Number Signal name Wire Color Wire Size
1 3.3 V Orange 20 AWG
2 3.3 V Orange 20 AWG
3 RTN Black 20 AWG
4 5 V Red 20 AWG
5 RTN Black 20 AWG
6 5 V Red 20 AWG
7 RTN Black 20 AWG
8 POK Gray 22 AWG
9 5 V AUX Purple 20 AWG
10 +12 V Yellow 20 AWG
11 +12 V Yellow 20 AWG
12 3.3 V Orange 20 AWG
13 3.3 V Orange 20 AWG
14 -12 V Blue 22 AWG
15 RTN Black 20 AWG
16 PS_ON Green 22 AWG