Figure 7-7. Header Pinouts - Compaq Evo D500 Technical Reference Manual

Chapter 7 Power and Signal Distribution
(Slim Desktop/Configurable Minitower only)
Data Terminal Ready 4
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
7-10 Compaq Deskpro and Evo Personal Computers
Featuring Intel Celeron and Pentium III Processors
Power Button/LED Header P5
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]
CD Audio Header P7
1 Ground
2 Audio (left channel)
3 Ground
4 Audio (right channel)
AOL/SOS Header P12
BIOS Fail 1
2 OS Fail
Intrusion 3
4 Thermal
Fan Alert 5
6 Pwr
Ground 7
Serial Port A/COM1 Header P16
(Small Form Factor only)
Carrier Detect 6 Data Set Ready
RX Data 2 7 Request to Send
TX Data 3 8 Clear to Send
9 Ring Indicate
Ground 5
Fifth Edition - March 2002