Chapter 7 Power and Signal Distribution
Compaq Deskpro Personal Computers
Third Edition - April 2001
7-10
NOTE:
No polarity consideration required for connection to speaker header P6 or SCSI HD LED header P29.
[1] Separate cable connection for these two pins (equivalent of header P29 on other systems).
Figure 7–7. Header Pinouts
1 HD LED anode
3 HD LED cathode
4 PWR LED anode
5 PWR LED cathode
6 PWR button (gnd)
7 PWR button (+)
8 SCSI HD LED [1]
9 SCSI HD LED [1]
Power Button/LED Header P5
(Slim Desktop/Configurable Minitower only)
CD Audio Header P7
1 Ground
3 Ground
4 Audio (right channel)
2 Audio (left channel)
Carrier Detect
TX Data 3
Data Terminal Ready 4
Ground 5
RX Data 2
6 Data Set Ready
8 Clear to Send
9 Ring Indicate
7 Request to Send
Serial Port A/COM1 Header P16
Small Form Factor onl
BIOS Fail 1
Fan Alert 5
Ground 7
Intrusion 3
2 OS Fail
6 Pwr
4 Thermal
AOL/SOS Header P12
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