What kind of 4-pin? If you look at the M2-ATX there is a 4-pin P4 style power connector in addition to the 20-pin.
I want to use a Abit NFS mainboard for my car PC, but it needs a 4 pin power plug in conjunction with the 20 Pin power plug...
Is it possible to splice the 4 Pin in off the 20 Pin? Adapter?
Okay, just to clarify...
1 X 20 pin
1 X 4 pin
1 X HDD molex
1 X Floppy Molex
Do you have a link to the MB spec? Still need to know what type of 4-pin...
I wouldn't recommend it, however. There are PSUs that provide the 4-pin 12v connection such as the M2ATX, DSATX and the newer Opus units.
Well I did the same thing with my MB that has the 12V P4 connector using an M2-ATX. You need to short pins 13 and 14 on the 20 pin connector to get the PSU to switch on, in addition to providing the 12V over P4 connector.
So you don't need to splice if you have the M2 already but I believe there are more ideal solutions out there.
EDIT: Nevermind that. You have the 20 pin ATX on your MB also...