High Pitched/Frequency Noise

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philipaaldridge

Hi All,

I built my own PC 1 1/2 years ago, all was good until it started
randomly black-screening, resulting in disconnecting the power and the
mother board discharging before it would power back on.

Eventually, it popped and never returned. I've kept the innards,
replaced motherboard and CPU and my pc is back up and running. with
old memory, psu, cd drive and harddrive.

My worry is that there is a high pitched frequency coming from the
CPU, that comes and goes, esp with the graphics demands. I'm worried
that either the memory, or psu or something is cooking the motherboard
and will blow out again. My pc is working fine, but wondered if anyone
could give experience on such matters.

Cheers and all the best ! !

Phil
 
Hi All,

I built my own PC 1 1/2 years ago, all was good until it started
randomly black-screening, resulting in disconnecting the power and the
mother board discharging before it would power back on.

Eventually, it popped and never returned. I've kept the innards,
replaced motherboard and CPU and my pc is back up and running. with
old memory, psu, cd drive and harddrive.

My worry is that there is a high pitched frequency coming from the
CPU, that comes and goes, esp with the graphics demands. I'm worried
that either the memory, or psu or something is cooking the motherboard
and will blow out again. My pc is working fine, but wondered if anyone
could give experience on such matters.

Cheers and all the best ! !

Phil
Click to expand...

The whine is from a power supply that is failing. It's possible that the
power supply damaged the old motherboard. -Dave
 
Mike T. said:
The whine is from a power supply that is failing. It's possible that the
power supply damaged the old motherboard. -Dave
Click to expand...
As the o/p doesn't say more than high pitched, it could also be the fan (if
there is one) on the video card, which could also explain the sound
increasing under heavy graphics load.

SteveH
 
I'm pretty sure its not the fan(s) as I've done a test, complete
health and safety approved, by putting my thumb on the fans and
slowing it down and its not that. its not a whine, its more like a
dog whistle ( if you could hear such a thing) ..

Its very cheap memory, which is points to my main cultprit, I'll swap
it out and the psu.. just wondered if you heard of something that
could cause motherboard/cpu to eventually pop.

thanks y'all for your help.

safe.
 
I'm pretty sure its not the fan(s) as I've done a test, complete
health and safety approved, by putting my thumb on the fans
and slowing it down and its not that. its not a whine, its more
like a dog whistle ( if you could hear such a thing) ..
Click to expand...

Its most likely one of the coils in the voltage regulator for the cpu
voltage if its coming from the motherboard and not the psu.
Its very cheap memory, which is points to my main cultprit,
Click to expand...

It wont be that.
I'll swap it out and the psu..
Click to expand...

Bet that wont make any difference.
just wondered if you heard of something that
could cause motherboard/cpu to eventually pop.
Click to expand...

Nar, its normally just a coil that hasnt been
made properly so you get an audible effect.
 
Hi All,

I built my own PC 1 1/2 years ago, all was good until it started
randomly black-screening, resulting in disconnecting the power and the
mother board discharging before it would power back on.

Eventually, it popped and never returned. I've kept the innards,
replaced motherboard and CPU and my pc is back up and running. with
old memory, psu, cd drive and harddrive.

My worry is that there is a high pitched frequency coming from the
CPU,
Click to expand...


<snip>

Nope not a chance that your CPU is making noise...

it's some other component such as your powersupply
or monitor

have a snoop with a stethoscope or rubber hose
 
capacitors can make a very high pitched noise when they are "not happy";
look for swelling/bulging in the power regulator area. Use a stethoscope
or a plastic tube/hose or something to pinpoint it. a cardboard
paper-towel tube would work.
 
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