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no Variable Speed in Fan on ASRock mobo

Discussion in 'Hardware' started by paulb100, Dec 19, 2012.

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  1. paulb100

    paulb100 Thread Starter

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    I have an old and noisy PC Iam looking at for a friend, its an old Celeron 2.6Ghz and the fan is going full belt at 3500 rpm, temps are 35'c and the fan is connected to the 3 pins on the motherboard (ASRock P4VM890) with a 3 pin connector (with 3 wires, so all are being used) - the fan speed is reported in BIOS but can not be adjusted at all anywhere.

    Could it be the fan is not a Variable Speed type?

    or is the Motherboard doesnt support Variable Fan Speeds?


    thanks
     
  2. Oddba11

    Oddba11

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    Fan type typically doesn't matter. Most likely the motherboard doesn't have variable speed control. I don't recall my motherboards of similar vintage have variable speed control either. At that time, it was a matter of choosing a fan that was quiet.
     
  3. managed

    managed Trusted Advisor Spam Fighter

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  4. crjdriver

    crjdriver Moderator

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    I looked at the manual for that board and it does not show any type of smart fan. That is a via chipset mb and as such it is a very low end type mb. It is not going to have the options that that you find on an intel chipset board.
     
  5. crjdriver

    crjdriver Moderator

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    Just checked the bios updates for that board and it does show an update to hardware monitor so it may be possible after a bios update. Up to you if you want to attempt a bios flash on that board; it may give an option for fan control and it may not. Here is what the bios note says;
    Modify BIOS H/W monitor algorithm.
     
  6. paulb100

    paulb100 Thread Starter

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    thanks for the replies guys...

    I may try the BIOS update but ive a feeling it wont enable it.

    Ive told him about the speed controller kit - thanks for that :)
     
  7. managed

    managed Trusted Advisor Spam Fighter

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    You're welcome.

    You do have the option of fitting a quieter fan or heatsink+quieter fan as well.
     
  8. Triple6

    Triple6 Moderator

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  9. paulb100

    paulb100 Thread Starter

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    I didnt know you could get them like that with the Variable Speed knob at the back - and for only £2... he is considering it as he also needs to replace the PSU which is noisier lol...

    yep tried speedfan - no joy
     
  10. managed

    managed Trusted Advisor Spam Fighter

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    Perhaps he should get some ear muffs instead then. ;)

    I just edited my previous post to include 'You do have the option of fitting a quieter fan or heatsink+quieter fan as well.' in case you missed it.
     
  11. paulb100

    paulb100 Thread Starter

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    yeah thanks for that, I think that Variable Fan Speed knob will do the job.. the CPU runs cool enough (well it would at 3500rpm hehe)
     
  12. managed

    managed Trusted Advisor Spam Fighter

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    I had a similar control that came with an old AMD socket A heatsink & fan, it was quite noisy at full revs but slowing it down a bit made it much quieter. Hopefully your friend will get the same result.
     
  13. replay

    replay

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