High Pitched/Frequency Noise

[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

 

[Mike T.]

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

The whine is from a power supply that is failing. It's possible that the
power supply damaged the old motherboard. -Dave

 

[SteveH]

The whine is from a power supply that is failing. It's possible that the
power supply damaged the old motherboard. -Dave

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

 

[philipaaldridge]

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.

 

[Rod Speed]

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 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,

It wont be that.

I'll swap it out and the psu..

Bet that wont make any difference.

just wondered if you heard of something that
could cause motherboard/cpu to eventually pop.

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

 

[philo]

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,

<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

 

[frodo]

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.