- Forum: Water Cooling
Are you sure it's the fans? Maybe it's the pump, or (hopefully not) an HDD if you have any. Or CD/DVD drive if you have one.Try turning on the PC with just one fan plugged in at a time, to narrow down which ones are doing it. Let it run for like 10 seconds and power it off. If you can narrow it down to a fan or two, yeah, I'd say try and get a replacement.