I just built a new gaming PC using mostly new parts, see parts list here.
The case has 3 built in fans that all run to a fan control switch on the front of the case, which then connects to a 4-pin molex connector. When I connect that molex to the PSU (using a 6-pin PCI-E adaptor), the whole thing won't POST. It will briefly start up, the fans will start to spin for a fraction of a second, then shut off, no beeps.
If I disconnect the fans from the PSU, then the computer will run fine, though the GPU and CPU will get too hot quickly during gaming without the case fans running, of course.
Any idea why this is happening? My PSU is a few years old. Can I instead connect the case fans to the sys_fan connection on my mobo? What kind of adapter would I need?
The case has 3 built in fans that all run to a fan control switch on the front of the case, which then connects to a 4-pin molex connector. When I connect that molex to the PSU (using a 6-pin PCI-E adaptor), the whole thing won't POST. It will briefly start up, the fans will start to spin for a fraction of a second, then shut off, no beeps.
If I disconnect the fans from the PSU, then the computer will run fine, though the GPU and CPU will get too hot quickly during gaming without the case fans running, of course.
Any idea why this is happening? My PSU is a few years old. Can I instead connect the case fans to the sys_fan connection on my mobo? What kind of adapter would I need?