blueroomelectronics
Well-Known Member
Then why did you post a photo of a power supply in an earlier post?
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Then why did you post a photo of a power supply in an earlier post?
What brand of computer psu are you using? Just out of curiosity....
FAN PROBLEM...!
a fan prblm or pwm connection prblm..replace thats all..it'll work.
Old fan is 4 your old mb and u need new fan for new mb. Else who is going to make fan circuit for new mb.
yes..!
just buy a new fan for your nwe motherboard. Old fan is 4 your old mb and u need new fan for new mb. Else who is going to make fan circuit for new mb.
i don't need headphones to hear the noise!!!!
and also it's not a solution to disable the PWM control wire so i can
totaly stop the electrical noise.
[edit]
@MrAl do you think it will work? not all motherboard have the same fan control IC.
the PDF link i gave is a random one i got while i was searching the net.
It's probably your fan that isn't suitable for PWM control - not a fault on the motherboard. PWM is supposed to have 'ripple', in fact it's 100% ripple - that's why it's efficient.
whizzz....
1microfared cap from pwm to gnd?
sometimes you lost the noise because the rpm of fan is slower now. is that a proper way or will it affect the mb? sometimes your fan speed may controlled by pwm from mb or new mb made your fan run faster than older one. y not safely try anoother fan?
Totally unrelated to the question... but related to the noise:
Funny, my video card makes funny noises (i got a GTX 280) whenever im on the world of warcraft character select screen... Not like its even intense for this video card lol.
problem FIXED!
no need for a resistor! just one 1uF capacitor from PWM control pin to GND pin! when i said that i tried few capacitors but they did nothing... i was connecting them from +12V to GND because i couldn't imagineeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!
something i've noticed and i don't know if it is ok or not... is that when i'm using the 1uF capacitor and i have the BIOS function at "ultra Silent" the RPMs of the fan are getting lower than without the capacitor.
so now... i know two things!!! first the PWM is full of ripple noise because of the reason MrAl gave (?) and second that the motherboard probably has missing components or that is kinda faulty (?)
if it is faulty i think i should RMA it...but how am i going to explain that to the dealer store?