On the Ant I was testing on the extra fan connector doesn't seem to work, testend on another one and everything works fine on that one.
I guess I could power the fan for the Ant with the broken fanconnector from my PSU, or not? What cable/connector from the PSU is best use to power the fan?
Traditionally, an ATA power connector is used for fans (Molex 4-pin), but anything should work just the same. If you want to go cheap on it, you could
probably just screw the leads into the alternate power connector (the one you'd use if it didn't come with PCI connectors), or do the same with an output, so you don't have to run another lead from your PSU.