|After a few hours of troubleshooting, I've been able to determine what I believe to be a problem with the CPU Fan Header on my Gigabyte GA-EP43-UD3L. It is a 4 pin header and when powering on the board outside the case, it does not spin or light up the fan. I have a Zalman 9700. I also tested it with an Intel OEM fan. I pulled out an old ASUS board, and both fans work off that CPU Fan header. If I use the the 3 Pin Pwr Fan header on the Gigabyte board, it also spins and lights the fan, |
Since I want to continue this gigabyte board, I'm trying to figure out if there are any ramifications to running the fan off the 3 pin Power Fan header. When I attach it - its the blue wire that is being bypassed. I see that they sell adapters that allow you to connect fans directly to a molex connector Is this a better method? Bottom line - will running this fan off of any other power source other than the CPU header - screw anything up?