|
Technical Overview: Dell Dimension 3100/E310 Service Manual
Back to Contents Page
Technical Overview
Dell™ Dimension™ 3100/E310 Service Manual
 Inside View of Your Computer
System Board Components
Power Supply DC Connector Pin Assignments
Inside View of Your Computer
|
1
|
bay for optional second hard drive
|
|
2
|
hard drive
|
|
3
|
floppy drive*
|
|
4
|
CD or DVD drive
|
|
5
|
power supply
|
|
6
|
system board
|
System Board Components
|
1
|
clear CMOS jumper
(RTCRST)
|
9
|
main power
connector
|
|
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
|
Power Supply DC Connector Pin Assignments
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
|
Back to Contents Page
| 
