KT7A + high amp fan...how to avoid fan header burnout?

[JC]

Hi
I hear those high RPM fans pull like 4A...but my KT7A-RAID needs a fan connected to the CPU fan header, right? What do I do, use a 4-pin adapter for the fan, and hook up...some other 3-pin fan...to the CPU fan header? Obviously, people get around this.
thanks
JC

 

[HaVoC]

4 amps at 12 volts? I should hope not...that's 48Watts! Monster fan...

I think you are confusing 4A with 4 watts which is what the Delta fan pulls. This is probably too much current for the mobo headers so you have to go with the 4-pin Molex connector. If you really want the RPM monitoring, I guess you could hook a jumper wire from the RPM pin to the motherboard while powering the fan directly from the PSU.

 

[chasm22]

If you upgrade to the latest bios version, you won't have that problem. Bios wz and above give the following upgrade "Adds an option to enable/disable the CPU protection (fan1 error checking) function and changes the default setting to disabled. "

Of course, this comes with some luggage that you may not want, such as some new bugs.

Here is the option I am taking. If you go with the four pin fan hooked to the power supply, buy a three pin case fan. I bought a sunon, rpm sensing one, along with a three pin extension, and ran it to the m/b fan header.

 

[JC]

Havoc- oops, yeah, watts

Thanks guys!

 

[mHubs]

The KT7 and KT7a can take the Delta on the fan header, they can take like 6 watts on each header