high frequency sound

[Mitternacht]

if its that change the power cable and socket and that might eliminate that possibility. unless its within your psu.


is there a speaker in your system? try taking it out and see if its parts or the computer with some kind of error.

Already ran it with only a power cable attached to it and it still did the noise, no internal speakers, switched power cords; nothing. I was hoping it was the PSU and not something too major.

[Eclecticos]

I've been searching the net. . apparently It could be your video card, hard drive, or monitor.
IMO if it starts out with the noise and it goes away. . try a drop of oil in the fan.

[Mitternacht]

I've been searching the net. . apparently It could be your video card, hard drive, or monitor. IMO if it starts out with the noise and it goes away. . try a drop of oil in the fan.

That's a likely culprit, along with the psu. I guess I'll try the oil in the fans, even though I'm just about 100% positive its not those. I get off work in an hour, so I'll let you guys know if anything works after I try it.

[AJ@PR]

Long shot, but I'm with Sly.... I say capacitor.

Just a test... can you unplug the PSU, leave it a short while unplugged (60 minutes?)... then plug it back in.

When you re-plug it, check to see if it makes similar noises before you turn on the computer.

Just shooting some ideas...

[Mitternacht]

Long shot, but I'm with Sly.... I say capacitor.

Just a test... can you unplug the PSU, leave it a short while unplugged (60 minutes?)... then plug it back in.

When you re-plug it, check to see if it makes similar noises before you turn on the computer.

Just shooting some ideas...

Thanks for the ideas, but it only makes the noise with the comp on, and if the sound is going on as I shut down, as soon as the PC shuts off, the sound stops. I start it back up, and the sound comes right back instantly.

[slytherock]

I'll say: unplug everything. even the cpu. keep only the PSU and the mobo (if you have a spare one; even better) add one component at a time till you find the faulty one.

(Don't worry about the beeps )

Edit: try with only the PSU, short it to put it on.

Edit 2: short the psu Link

[crazybillybob]

I'm leaning toward your PSU, more then likely you've got a filter circuit going bad (could be cap or a choke)
Look at SLy's drawing and jumper pin 14 to 15 and power up the PSU see if it still makes the noise.


CrazyBillyBob

[Cannibal23]

i have troubleshot several of these problems at work. they are almost always a capacitor. typicaly its one of the ones inside your power supply. if you have a spare one plug it in and see if the problems goes away. if not maybe disconnect the power supply from everything. assuming this is an atx power supply you can turn it on by shorting the green wire and any black wire togeather. both are located on the big P1 connector. i think youll find your problem is power supply.

[Mitternacht]

I'm on the computer right now. I started to see how it acts. The sound came on, and it only lasted 1 minute.

[Mitternacht]

Ok, so I did the test & it's the psu. rep to everyone who helped.