Odd cpu fan noise driving me nuts!

Slide83

Junior Member
Feb 15, 2013
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I recently put together a system with a I5-3570k and a Gigabyte Z77-DS3H motherboard. Everything works great except for one problem that is driving me nuts. The stock Intel cpu fan makes a barely audible ramping up and down sound. It seems that it only does it at idle. It's like it is constantly ramping up but then realizing the core temperature doesn't require a higher fan speed so it ramps back down.

I haven't had any luck changing the cpu fan settings in the bios. In fact, the PWM/Voltage/Auto settings don't even seem to change anything... I tried downloading the speedfan program but I really don't know where to start...

Any ideas?
 

Slide83

Junior Member
Feb 15, 2013
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"CPU Smart Fan" isn't listed in the BIOS.

Yeah, I ordered a hyper 212 cooler. Hopefully that will take care of the issue. I just hated to spend any more money on something that should work right to begin with.
 

MeldarthX

Golden Member
May 8, 2010
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Intel's stock fans tend to have an annoying ramping whine; not really much you can do about it. Besides its also a piece of crap :) Zap is right if the fan is connect to the mb; it will only do what the bios tells it.......

Might be an issue with the bios; but honestly you'll be doing yourself a favor by getting rid of stock fan
 

Charlie98

Diamond Member
Nov 6, 2011
6,292
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Do yourself a big favorite and throw out the retail heatsink.

Yes and no. I put my stock i5 cooler on my G620 HTPC CPU and it works very very well... no weird behavior even with my Gigabyte mobo, and it hardly ramps up at all. I understand the OP's i5 makes more heat, and he would most likely be better served with a 212+ (et al) but if the BIOS is telling it to ramp up... he's still going to have the same problem.
 

Charlie98

Diamond Member
Nov 6, 2011
6,292
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"CPU Smart Fan" isn't listed in the BIOS.

It should be in 'PC health status' at the bottom... (it is on my Z68 board.)

On my B75 board they don't have 'Smart Fan,' but you can manually control or set the CPU fan slope. It's in the PC Health Status as well.