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Will the P67 Sabertooth boot if you don't have a CPU_Fan plugged in?

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I was really hoping that it would still let you boot up if you don't have something plugged into the CPU_Fan socket. I just got an aerocool shark 140mm fan and it's a 3 pin fan that comes with a molex adaptor. This would be fine (i'm an idiot for not reading the fact it didn't say PWM anywhere) but can I plug it straight into the PSU rather than the motherboard?

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samuelspark said:
No. You need a four pin.


Bugger, I'll just connect my CPU fan to the 3 pin Chassis fan I guess =\ but controlling speeds might get a little interesting, as there won't be a direct between fan speed and CPU temperature.

Or would it be better to just run MOLEX 4P off the PSU?

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OpalReactor said:
Bugger, I'll just connect my CPU fan to the 3 pin Chassis fan I guess =\ but controlling speeds might get a little interesting, as there won't be a direct between fan speed and CPU temperature.

Or would it be better to just run MOLEX 4P off the PSU?


3 pins work in 4 pins. You just don't get that PWM. Don't run it on molex unless you have to.

Also, you should have no problems with running without anything connected to CPU fan header. Both my motherboards that I've used have been fine with that.
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