Buzzing from m/b?

[Kenny]

Maybe coincidence but the buzzing started just after enabling Wake On Lan
(PME Event) in bios.

On restart fairly loud continuous buzzing noise from m/b. Removing cards
etc. have narrowed it down to m/b itself. I strongly suspect the chipset
fan has failed, it's hard to see if it's spinning or not.

PC will start but the noise is unbearable. PC had been suffering
intermittent program lockups this last week or so. CPU and m/b temps. seem
normal.

It's a Gigabyte GA-K8NSC-939.

Would I be correct in my diagnosis?

Any way of telling for sure?

Can the chipset fan be replaced?

Can't find receipt so don't know if it's covered by warranty, I suspect not.

 

[Kenny]

After reading some forum posts came up with this:
http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=321728
which will fit but I don't understand what they mean by "2) The CPU cooler
must be one of the Recommended CPU Coolers mentioned above."
Same cooler on different retailer sites say the same thing but there's no
recommended CPU coolers listed!
Currently using the retail Athlon 64 3200 with supplied cooler.

 

[paulmd]

Maybe coincidence but the buzzing started just after enabling Wake On Lan
(PME Event) in bios.

On restart fairly loud continuous buzzing noise from m/b. Removing cards
etc. have narrowed it down to m/b itself.

It's a warning buzzer. You have some hardware failure. Probably the
reason you have lockups....

I strongly suspect the chipset

fan has failed, it's hard to see if it's spinning or not.

PC will start but the noise is unbearable. PC had been suffering
intermittent program lockups this last week or so. CPU and m/b temps. seem
normal.

What ARE the CPU/MB temps?

It's a Gigabyte GA-K8NSC-939.

Would I be correct in my diagnosis?

It's logical. Correct is only proven once problem is fixed, or at least
verified.

Any way of telling for sure?

Yep, crack open the case and look (flashlight is often helpful). Is
there some reason
you can't see the chipset fan? Like dust? Are all the other fans
running?

Since you got the case open, you may as well blow out the dust. CHeck
all of the capacitors for bulges or leaks (even teensy ones).

Can the chipset fan be replaced?

Yes. Usually.

 

[Yves Leclerc]

Could also be an internal cable which a fan is rubbing against.

 

[Kenny]

Put a drop of 3 in 1 oil in the bearing and it's quiet as a mouse now.

 

[RJK]

That won't last - REPLACE THE FAN, and there's very strong penetrating
additives in 3 in 1 oil that will attack your motherboard, if it gets onto
it !

regards, Richard

Put a drop of 3 in 1 oil in the bearing and it's quiet as a mouse now.

 

[Kenny]

Thanks for the reply, I have a new fan on order. The 3 in 1 simply
confirmed that the fan was the problem, it was a bit difficult to actually
pinpoint where the noise was coming from.