Technical Overview: Dell Dimension 3100/E310 Service Manual
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Dell™ Dimension™ 3100/E310 Service Manual
Inside View of Your Computer
System Board Components
Power Supply DC Connector Pin Assignments
1
bay for optional second hard drive
2
hard drive
3
floppy drive*
4
CD or DVD drive
5
power supply
6
system board
1
clear CMOS jumper
(RTCRST)
9
main power
2
fan connector (CPU FAN)
10
IDE drive connector
3
floppy drive connector (FLOPPY)
11
FlexBay USB
connector
4
processor and heat sink connector
12
PCI Express x1 card connector
5
processor power connector
13
PCI card connectors
6
memory module connectors (1, 2)
14
password jumper
(PSWD)
7
SATA connectors
(SATA-0 and SATA-1)
15
battery socket (BATTERY)
8
front panel I/O connector
Jumper Settings
The jumper locations are shown below.
Jumper
Setting
Description
PSWD
Password features are enabled (default).
Password features are disabled.
RTCRST
The real-time clock has not been reset.
The real-time clock is being reset (jumpered temporarily).
jumpered unjumpered
DC Power Connector P1
Pin Number
Signal Name
Color
Wire Gauge
1
+3.3 VDC
Orange
18-AWG
2
+3.3 VDC
Orange
18-AWG
3
COM
Black
18-AWG
4
+5 VDC
Red
18-AWG
5
COM
Black
18-AWG
6
+5 VDC
Red
18-AWG
7
COM
Black
18-AWG
8
POK
Gray
18-AWG
9
+5 VFP
Purple
18-AWG
10
+12 VB DC
Yellow
18-AWG
11
+12VB DC
Yellow
18-AWG
12
+3.3 VDC
Orange
18-AWG
13
+3.3 VDC
Orange
18-AWG
14
-12 VDC
Blue
18-AWG
15
COM
Black
18-AWG
16
PS-ON
Green
18-AWG
17
COM
Black
18-AWG
18
COM
Black
18-AWG
19
COM
Black
18-AWG
20
N/C
N/C
18-AWG
21
+5 VDC
Red
18-AWG
22
+5 VDC
Red
18-AWG
23
+5 VDC
Red
18-AWG
24
COM
Black
18-AWG
DC Power Connector P2
Pin Number
Signal Name
18-AWG Wire
1
COM
Black
2
COM
Black
3
+12 VA DC
Yellow
4
+12 VA DC
Yellow
DC Power Connect P3 and P5
Pin Number
Signal Name
18-AWG Wire
1
+3.3 VDC
Orange
2
COM
Black
3
+5 VDC
Red
4
COM
Black
5
+12 VB DC
Yellow
DC Power Connector P7
Pin Number
Signal Name
18-AWG Wire
1
+5 VDC
Red
2
COM
Black
3
COM
Black
4
+12 V DC
Yellow
DC Power Connectors P8 and P9
Pin Number
Signal Name
18-AWG Wire
1
+12 VA DC
Yellow
2
COM
Black
3
COM
Black
4
+5 VDC
Red
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