hey. my specs are a e6300, 8800gts 640, asus 680i, 750 quad pc power cooling silencer, tuniq tower, hr-05 northbridge cooling, antec 900, 320gb hd.

when i overclock the e6300 from 267fsb to 444fsb, i notice that the powersupply is making a faint but noticeble squealing sound when i prime95/orthos the cpu (untilize 100& of the cpu). The sound seems to come and go almost like a pulse. When i dropped the overclock to 333 fsb, it still makes the same squealing//pulse sound when being primied or othos'd but it is alot less noticable. i am guessing maybe since i m priming it, the powersupply is being stressed. but is this a bad sound?? should i be worried about it? should i return the cpu to the manufacter since the powersuply is covered by a 3year warrenty.

i meant to say should i return the powersupply to the manufacter**

You should send it back .. they prob will fix it or send you a new one.

so you think this faint squealing sound means that some thing is wrong with the powersupply? it doesnt seem to make a pulsing squealing sound unless the pwersupply is under stress by the overclocked cpu, the sound is faint, but their is a sound, but not when the computer is basically idiling, it is almost silent.

It is possible that the fan in the PSU has a bad bearing. Thus, when the fan spins up with the rising temps, you hear the bearing squeal.

In any case, I would rma. It isn't worth risking your system.

nope, the sound isnt coming from the back of the powersupply where the fan is, it seems to be coming from the inside. it seems to be some kind of electronical squeal. but it doesnt squeal constintly, the squeal seems to pulse randomly, and the more voltage my pc uses for a higher overclock, the squeal seems to be more noticable.., i have been reading about inductor whine, not exactly sure what that is, but i hope its not coming from my motherboard. I guess i mgonna have to try the powersupply from the other pc on this computer to see if i still hear it. anyone hear these faint but noticable sounds coming from their powersupplies?

In that case, I would definitely isolate and find the sound. If it is coming from the PSU, I still recommend doing rma, as there are no user serviceable parts inside, and opening it will most likely void any warranty.

I use those same PSU's in computers I build, and have 1 currently running. In the over 70 systems I have built with PC Power & Cooling Silencer 750's, I have not heard the pulsing squeal problem you describe.

In the end, you should NOT have any sounds coming from your PSU, other than the fan noise. Any other noise, and you have issues that are better off resolved, rather than risking the rest of your system.

alright yah i took the whole computer apart, isolated the powersupply , and the sound is deffintly coming from the powersupply. this is gonna suck, i m gonna have to rma it, my rig will be down for god know how long! and i just brok 10k in 3d mark 06 last night damnit, i was gonna go for 11k next! owell i ll live. but i have another question. a while ago i was shutting the side of my case and i accidently jammed a wire in there from the powersupply exposing the copper conductor breaking threw the protective wiring case. i used electrical tape to cover the exposed areas, do you think this will void my warrenty?

bumpage

It may have, but I doubt it.
It should not be hard to argue that the squeal has nothing to do with a broken wire.

yah i m just about possitive the squeal does not have anything to do with the wire that was exposed. Anyone think that my powersupply will not be able to be rma'd for a new one?

The sound is almost certainly caused by a magnetic component that is vibrating at an audible frequency. Generally, the switching frequency of a power supply should lie well above the range of normal human hearing. It is possible that, under a higher stress load, the switching frequency may drop, or an audible harmonic has been added. If you are not exceeding the PSU's ratings in any way, I would contact the manufacturer about this and see what they recommend.

Regards,

Altazi

hey man wow, you know your stuff, you seem to have a good amount of knowledge geared towards powersupplies.. thanks, i was wondering if you feel that my warrenty would be voided due to electrical tape on wires that were accidently stripped when closing the case door hard.

also my powersupply is under a standard return policy from newegg. which is 30 days for refund and 1 year for product exchange. do you think i will be allowed to exchange my powersupply for a new one even though a couple wires were accidently strippede

I am comfortable discussing technical issues, but I have no idea if the stripped wires could present a problem with the return. It seems to me that if the PSU was faulty, it should be repaired or replaced despite the damaged wires. Now if the stripped wires caused a short circuit that damaged the PSU, all bets could be off.

It doesn't hurt to ask. If you have plenty of time, start with the manufacturer and see what they have to say.

Regards,

Altazi

Im a small pc builder and I would be very surprised if they honour there warranty with a stripped wire that was taped. First thing my supplier would say is they cant prove that the wire being caught in the case didnt cause the problem in the first place.

Second with that high pitch squeel, Well i have had alot of different componets do that that usually they crap out pretty quick. I had a abit board that outa the box make that sound and it didnt last long enough to install windows.

Where did you buy your power supply from try taking it back there. If you got it online I honestly wouldnt bother paying to ship it back, I think you will be wasting your money. I know its a shitty thing when stuff like that happens but I have learned the hard way like that many times in the past