Odd cpu fan noise driving me nuts!

[Slide83]

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?

 

[ch33zw1z]

Are you sure the heatsink/fan is seated properly? Try reseating...

 

[VirtualLarry]

disable "CPU Smart Fan" in BIOS.

 

[paul878]

Do yourself a big favorite and throw out the retail heatsink.

 

[Slide83]

"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.

 

[Zap]

I just hated to spend any more money on something that should work right to begin with.

The CPU fan only does what BIOS tells it to do. :\

 

[MeldarthX]

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]

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]

"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.