Hi, I have recently built a computer and everything works fine. The one problem I have is the case fan. It's built into the removable side panel. It came with a 4 pin power connector, and a mini 3 pin connector (which is too short to reach the motherboard). I hooked up the 4 pin power and when I turn on, everything fires up along with the fans LED lights, but the fan doesn't actually spin. I bought a little extension lead so that I can now reach the motherboard with the additional mini 3 pin connector. Now, when I turn on the system the fan moves slightly for a second then the power just seems to cut out.
Why is this happening? I can only assume that there isn't enough power coming from the PSU to include the fan. But, I have a hyper 570W PSU which should be ample!
I'm running AMD x2 6000, 2gb ram, 160gb hd, single 8800gts 320mb GPU, and the dvd unit, all on a ASUS M2N4 sli motherboard. Surely I have enough power no?
You have them both connected? I'd assume the 4 pin connector is for attachment to the psu if you want the fan running flat out all the time, and the 3 pin connector for attachment to the mobo if you want the fan speed monitored / controlled by software
if I just connect the 4 pin, the LED comes on but no spin. If I try 4 pin and 3 pin together, it runs for a split second then cuts out, same outcome with just the 3 pin connected.
The only other thing worth mentioning is that the extension cable I bought for the short 3 pin wire to reach the motherboard is slightly thicker cable (like, almost unnoticeable). Would that cause a problem?
The 4 pin connector is a white molex. I have tried leaving it connected and played a demanding game for a couple of hours. The fan never kicked in even when performance was effected from the heat so I doubt it's software controlled