Troubleshooting the fan system

Monoply

Honorable
Aug 28, 2013
5
0
10,510
Is it safe to disconnect everything from the power supply unit except the connections to the 2 fan controller units with there 9 attached fans? There are also connections from the fan controllers to several 3 pin headers on the MOBO, including a PWM carrying cable. The object here is to be certain of power getting thru all connectors and that all individual fan speed controls work properly.
Thanks in advance,
Walt
 

clutchc

Titan
Ambassador
Wait. You have your fan controller output connected to your motherboard fan headers? And what the heck do you mean by "PWM carrying cable"?

If the 24 pin PSU cable isn't connected to the MB, the PSU won't start unless you jumper the 24 pin connector.