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New (old) PSU and Blue Screens

post #1 of 3
Thread Starter 
I traded my old PSU that came with an alienware system to my brother for his Corsair tx850w PSU (http://www.newegg.com/Product/Produc...rsair%20tx850w) because I got a new case and the alienware PSU didn't want to fit.

As soon as I installed the corsair psu and booted my system up I noticed a subtle ringing/rattling noise coming from the PSU. It went away after awhile and now it only happens during a Furmark Stress Test or intense gpu load.

A couple days after I installed the PSU I came back from school to see that my comp had restarted itself and there was a Blue Screen Error on my desktop (My comp was idle at the time of the blue screen). I decided I probably just had to make some adjustments and I bumped my cpu voltage up a notch (I had did not experienced these blue screens with my old PSU and I had made sure that it was stable in prime 95). That was about a week ago, and I had not experienced another blue screen until about 30 minutes ago when I was reading next to my comp which was running starcraft 2 in the background with nothing else but my web browser open.

The blue screens seem to be rather sporadic. I can run prime 95 and furmark at different times without getting a blue screen.

Also, my brother, who was using the corsair PSU to power a dual core system and a 9800 gt did not experience these seemingly random blue screens.

So, is the buzzing noise and sporadic blue screens indicative of a dying PSU?
Goku Brasky
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 950 @ 4.11ghz ASUS Rampage III Formula Radeon HD 5770 3x2gb Corsair Dominator @ 1800mhz 
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Steelseries 7g Silverstone RV02 
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Goku Brasky
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 950 @ 4.11ghz ASUS Rampage III Formula Radeon HD 5770 3x2gb Corsair Dominator @ 1800mhz 
KeyboardCase
Steelseries 7g Silverstone RV02 
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post #2 of 3
The power supply that came with your Alienware was probably a Newton Power PSU built by Delta Electronics and was probably a higher quality and better performing power supply than the Corsair TX850 is. It should have fit the new case, I don't see why it wouldn't, Dell's Alienware PCs usually use standard ATX form factor PSUs.

The noise you're hearing is called coil whine and occurs when the coils on an inductor or transformer become loose, and certain frequencies of AC current or DC ripple passing through them can cause the coils to vibrate and make noise. It's a manufacturing defect that can occur on any power supply, though it's more prevalent among some designs and manufacturers than others.

It has nothing to do with a power supply dying, or having too little power. Your computer consumes less than 300W under maximum stress testing mode (Furmark + LinX) regardless.

Your BSODs are from an unstable CPU/RAM overclock.
Edited by Phaedrus2129 - 2/26/11 at 8:35pm
post #3 of 3
Thread Starter 
Yeah most likely from an unstable overclock but it seems strange to me that the BSODs have only occurred when my system is idle but not during stress testing.
Goku Brasky
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 950 @ 4.11ghz ASUS Rampage III Formula Radeon HD 5770 3x2gb Corsair Dominator @ 1800mhz 
KeyboardCase
Steelseries 7g Silverstone RV02 
  hide details  
Reply
Goku Brasky
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 950 @ 4.11ghz ASUS Rampage III Formula Radeon HD 5770 3x2gb Corsair Dominator @ 1800mhz 
KeyboardCase
Steelseries 7g Silverstone RV02 
  hide details  
Reply
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