Compaq EN Series Technical Reference Manual page 30

Figure 2-7 shows the connector and switch locations for the two types of backplane boards.
1 2 3 6
5
4
18 17 16 15
System Board Side Power Supply Side
Desktop Backplane Board
(P/N 008001-xxx
or 009663-xxx [5])
Item Function
1 PCI connector J20 (slot 1)
2 PCI connector J21 (slot 2)
3 ISA connector J10 [1]
4 PCI connector J22 (slot 3) [2]
5 ISA connector J11 [3]
6 Smart Cover sensor switch
7 PCI connector J23 (slot 4) [4]
8 PCI connector J24 (slot 5)
9 Power supply connector P1
NOTES:
[1] Shares slot with item 4 on desktop backplane (combo slot 1)
[2] Shares slot with item 3 on desktop backplane (combo slot 1)
[3] Shares slot with item 7 on desktop backplane (combo slot 2)
[4] Shares slot with item 5 on desktop backplane (combo slot 2)
[5] Later production units use the 009663-001 board
Figure 2–7. Backplane Board Connector, Header, and Switch Locations
7 9
10 11
12 14 13 18
Compaq Deskpro EN Series of Personal Computers
Third Edition - September 1998
Technical Reference Guide
1 2 7 8 3 5
4
17 16 15
System Board Side
Minitower Backplane Board
(P/N 008058-xxx)
Item Function
10 CD audio input header P7
11 Secondary EIDE connector P21
12 Diskette drive connector P10
13 Primary EIDE connector P20
14 Power button/LED header P5
15 Fan header P8
16 Speaker header P6
17 SCSI LED header P29
18 NIC WOL header P9
Desktop and Minitower Form Factors
6 9
10 12 11
14 13
Power Supply Side
2-9