Inside View of Your Computer
Dell™ Dimension™ E521 Service Manual
Power Supply DC Connector Pin Assignments
|
1 |
floppy drive or Media Card Reader |
2 |
CD or DVD drive |
3 |
power supply |
|
4 |
system board |
5 |
hard drive |
|
|
|
1 |
fan connector (FAN_CPU1) |
2 |
processor socket (CPU) |
3 |
memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4) |
|
4 |
power connector (PW_12V_A1) |
5 |
serial ATA drive connectors (SATA2, SATA3) |
6 |
serial ATA drive connectors (SATA0, SATA1) |
|
7 |
front-panel connector (FRONTPANEL) |
8 |
power connector (POWER1) |
9 |
line-in, line-out, microphone, side surround, center, and LFE connectors (AUDIO_6_STACK) |
|
10 |
USB connectors (2) (USB2_BACK1) |
11 |
network connector and USB connectors (2) (NIC_USB1) |
12 |
real-time clock reset jumper (RTCRST) |
|
13 |
video connector (VIDEO1) |
14 |
battery socket (BT1) |
15 |
Internal USB connector (USB1) |
|
16 |
PCI Express x16 connector (SLOT1) |
17 |
standby power indicator (AUX_PWR_LED) |
18 |
PCI Express x1 connector (SLOT2) |
|
19 |
PCI connector (SLOT3) |
20 |
PCI connector (SLOT4) |
21 |
password jumper (PSWD) |
|
22 |
floppy drive connector (FLOPPY1) |
|
|
|
|
|
Pin Number |
Signal Name |
18-AWG Wire |
|---|---|---|
1 |
GND |
Black |
2 |
GND |
Black |
3 |
+12 VADC |
Yellow |
4 |
+12 VADC |
Yellow |
|
Pin Number |
Signal name |
18-AWG Wire |
|---|---|---|
1 |
+3.3 VDC |
Orange |
2 |
GND |
Black |
3 |
+5 VDC |
Red |
4 |
GND |
Black |
5 |
+12 VBDC |
White |
|
Pin Number |
Signal Name |
22-AWG Wire |
|---|---|---|
1 |
+5 VDC |
Red |
2 |
GND |
Black |
3 |
GND |
Black |
4 |
+12 VADC |
Yellow |
|
Pin Number |
Signal name |
18-AWG Wire |
|---|---|---|
1 |
+12 VBDC |
White |
2 |
GND |
Black |
3 |
GND |
Black |
4 |
+5 VDC |
Red |