Compaq deskpro en series Manual De Usuario
Technical Reference Guide
Compaq Deskpro EN Series of Personal Computers
Desktop and Minitower Form Factors
Third Edition - September 1998
7-5
7.3
POWER DISTRIBUTION
7.3.1
3.5/5/12 VDC DISTRIBUTION
The power supply assembly includes a multi-connector cable assembly that routes +3.3 VDC, +5
VDC, -5 VDC, +12 VC, and -12 VDC to the system board as well as to the individual drive
assemblies.
VDC, -5 VDC, +12 VC, and -12 VDC to the system board as well as to the individual drive
assemblies.
Connector
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
P1
+3.3
+3.3RS
RTN
+5
RTN
+5
RTN
Fan Off
+5AUX
+12
P1 [1]
+3.3
-12
RTN
PS On
RTN
RSRTN
RTN
-5
+5
+5
P3-P5
+12
GND
GND
+5
P6
+5
GND
GND
+12
NOTES:
[1] This row represents pins 11-20 of the P1 connector.
All + and - values are VDC
.
RTN = Return (signal ground)
GND = Power ground
RS = Remote sense
= Deviation from ATX standard. PWR GD signal is produced by the south bridge component.
GND = Power ground
RS = Remote sense
= Deviation from ATX standard. PWR GD signal is produced by the south bridge component.
Figure 7–2. Power Cable Diagram
Power Supply
Assembly
(SP# 334112-001)
Drive
Assemblies
Assemblies
P1
P6
P3
P3
Backplane
Board
Board
1 2 3 4
P3-P5
P6
4 3 2 1
P4
P5
P1 (ATX-type)
1
12
20
11
2
5
4
3
7 8
6
9
14
10
13
16 17
15
18 19
P2