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Fan speed

GermanPCBuilder
By GermanPCBuilder
in Cooling
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Posted

Imagine that I have 2 case fans ( both 2000 RPM ) one in the front and one in the back , one is hooked up to the second cup fan header and the other to the first case fan header , which fan is going to spin faster und full load? The one that's hooked up to the additional cup fan header or the one hooked up to the case fan header ? 

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Posted
16 minutes ago, GermanPCBuilder said:

Imagine that I have 2 case fans ( both 2000 RPM ) one in the front and one in the back , one is hooked up to the second cup fan header and the other to the first case fan header , which fan is going to spin faster und full load? The one that's hooked up to the additional cup fan header or the one hooked up to the case fan header ? 

Shouldn't they spin at the exact same speed?

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27 minutes ago, GermanPCBuilder said:

Imagine that I have 2 case fans ( both 2000 RPM ) one in the front and one in the back , one is hooked up to the second cup fan header and the other to the first case fan header , which fan is going to spin faster und full load? The one that's hooked up to the additional cup fan header or the one hooked up to the case fan header ? 

Probably the one on the cpu fan header as it will crank up as you cpu is under load and that will get to the highest temp most likely.

I am a paid professional, but only when I am at work...and getting paid.

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Posted

It depends on the motherboard and settings.

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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So one is using CPU_OPT and another CHA_FAN1? In that case one on chassis header will be 100% all the time by default. Unless your mobo has pre-settings for all headers. One on CPU_OPT will by default follow 1st CPU header and run according to CPU temps.

^^^^ That's my post ^^^^
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