Signal Distribution; Figure 7-4. Signal Distribution - Compaq EN Series Technical Reference Manual

7.4

SIGNAL DISTRIBUTION

Figure 7-4 shows general signal distribution between the main subassemblies of the system unit.
System
Board
NOTES:
[1] Small Form Factor only
[2] No cable used for interface; direct connection between PS assembly and system board.
CDS Models only.
Figure 7–4. Signal Distribution Diagram
32-Bit PCI Bus
Riser
J50
Card
Conn
16-Bit ISA Bus
PWR SW, PWR LED, HD LED
SW/LED
P5
Conn
+3.5, +/- 5,
+/- 12 VDC [2]
Power
P1
Conn
IDE I/F
Pri. IDE
P20
Conn
IDE I/F
CD-ROM
P32
Conn
Audio
Audio
P7
Conn
Dsk I/F Diskette Drive [1]
Dsk.
P10
Conn
Mouse
J5
Conn Mouse
Kybd
J7
Conn
Compaq Deskpro EN Series of Personal Computers
First Edition - June 1998
Technical Reference Guide
PCI Connectors
Riser Card
ISA Connector [1]
Power
Supply
Assembly
5, 12 VDC
IDE
Hard Drive
CD-ROM
5, 12 VDC
5, 12 VDC
Keyboard
Net PC and Small Form Factor Models
HD Activity
Power On
Power Button
7-7