Cpu Fan Spinning At Full Speed When Pc Is Turned On

[manuleka 0]

I've just upgrade CPU from i3 3220 to an i7 3770 and i noticed that everytime i power on the machine the CPU Fan spins at full throttle before slowing down...I never had this issue with my i3... anyone experiencing this? is it normal? I read a few posts somewhere online and someone suggested it maybe a failsafe feature before BIOS loads up... but why wouldn't that happen on the i3...I'm guessing this may be an issue???

Edited April 18, 2013 by manuleka (see edit history)

[yordan 10]

I would rather say that this behavior is quite normal. At poweron the fans start spenning at full speed until the firmware boots and takes control of the fan speed. I would even say that not behaving that way woud be an issue

[manuleka 0]

I would rather say that this behavior is quite normal. At poweron the fans start spenning at full speed until the firmware boots and takes control of the fan speed. I would even say that not behaving that way woud be an issue

so you're saying my i3 fan wasn't working properly?

[yordan 10]

At least it was not working the way I expect it to work.

[manuleka 0]

At least it was not working the way I expect it to work.

ok... yea i've never had a PC where it does that on powerup... well as far as i can remember

[yordan 10]

Probably depens on many factors.Each PC I had till now does this kind of thing : a lot of span noising while powerup, and the fans slow down as system starts booting.

[manuleka 0]

OK thanks for that yordan, i was thinking of replacing the cooler due to that initial full speed spinning...

[OpaQue 15]

Try Cleaning the PC -

 

• 
  
• remove any clogged vents.
  
• remove the Processor fan and clean it.
  
• take a good look at the motherboard and ensure no pins are clogged by dust.
  

 

Then check your Processor Usage to see any Malware sucking the life of your CPU.

Finally, Use a tool like ScanDisk/ChkDsk to ensure your HDD is healthy.

[manuleka 0]

This is a brand new CPU...

 

Interior of PC is quite clean... board is about 6 Months old...

 

I think i would have to try another Cooler just to see if it does the same pattern

 

 

Try Cleaning the PC -

 

• 
  
• remove any clogged vents.
  
• remove the Processor fan and clean it.
  
• take a good look at the motherboard and ensure no pins are clogged by dust.
  

 

Then check your Processor Usage to see any Malware sucking the life of your CPU.

Finally, Use a tool like ScanDisk/ChkDsk to ensure your HDD is healthy.

[Ahsaniqbalkmc 0]

I agree with what @yordan is saying. I have noticed this behaviour of full speed fan spinning when the computer first starts with all my laptops. On my older desktop, the fan always used to spin at the same speed, but I later found out that this was because the bios feature for controlling fan speed was turned off. So basically, I completely agree with yordan's explanation. The fan runs at full speed before the bios has booted up completely to control its speed.

 

I would like you to make sure that the fan of your previous i3 pc could run faster. I am assuming that the fan had a slower maximum rpm and therefore you didn't notice any sound when you turned on that pc because the fan (because of its slower maximum rpm). If you ever noticed your fan running faster than that, then my assumption would be completely wrong.

[manuleka 0]

I agree with what @yordan is saying. I have noticed this behaviour of full speed fan spinning when the computer first starts with all my laptops. On my older desktop, the fan always used to spin at the same speed, but I later found out that this was because the bios feature for controlling fan speed was turned off. So basically, I completely agree with yordan's explanation. The fan runs at full speed before the bios has booted up completely to control its speed.

 

I would like you to make sure that the fan of your previous i3 pc could run faster. I am assuming that the fan had a slower maximum rpm and therefore you didn't notice any sound when you turned on that pc because the fan (because of its slower maximum rpm). If you ever noticed your fan running faster than that, then my assumption would be completely wrong.

 

you could be right Ahsani, the i3 3220 i had is a 55W one, and the fan was pretty quiet...