IBM PCM-6890B Personal Computer User Manual


 
22 PCM-6890B User Manual
Power connectors (CN9, CN1)
ATX power connector (CN9)
The ATX power supply uses a 20-pin connector shown below.
Make sure you plug in the right direction.
ATX power connector (CN9)
Pin Signal Pin Signal
1 N/C 11 N/C
2 N/C 12 -12V
3 GND 13 GND
4 +5V 14 PON
5 GND 15 GND
6 +5 V 16 GND
7 GND 17 GND
8 N/C 18 -5V
9 5V SB 19 +5V
10 +12V 20 +5V
CPU fan power connector (CN1)
Plug in the fan cable to the 3-pin fan connector onboard. The fan
connector is marked CN1.
CPU fan power connector (CN1)
Pin Signal
1 GND
2 +12V
3 Fan speed sense