CPU and CHASSIS fan speed

[Atique Chowdhury]

Hi,
I have a question about the fan speed control. I have an i5 4460 with stock cooler. I am currently running it at DC Mode which puts it at a 60% fan speed or 2400 rpm. My chassis #1 which is my rear exhaust fan is also on DC mode and it is running on about 900RPM, again 60%.

This setup keeps my cpu to an average of 30 degree celsius, but is it bad to have it running at this speed? It does have a hum sound and is not completely silent at all.

If I set it to PWM mode; however, the CPU temperature rises to about 38-40celsius and these measurements are all from idle temps or temps with two firefox tabs open (basically idle). Is there any way to solve this without frying my cpu?

 

[geofelt]

First of all, do not worry about frying your cpu.
It will slow down or shut off to prevent damage.
That point is around 100c.

At idle, I would expect a temperature around 15c. over ambient.


The small fan on the stock cooler does get noisy when it spins up under load.
I would set the cooler to pwm which will increase the rpm only when needed.

If noise is an issue, a simple tower type cooler with a 120mm fan will do the job.

 

[Atique Chowdhury]

First of all, do not worry about frying your cpu.
It will slow down or shut off to prevent damage.
That point is around 100c.

At idle, I would expect a temperature around 15c. over ambient.


The small fan on the stock cooler does get noisy when it spins up under load.
I would set the cooler to pwm which will increase the rpm only when needed.

If noise is an issue, a simple tower type cooler with a 120mm fan will do the job.

so you think 38-40c idle is not bad at all? (PWM temperatures) I am planning to get a hyper 212 evo and 3 more 120mm fans for the extra empty mounts i have but for now I wanted to keep the transistors from being affected by such high temperatures