Possible psu problem

[ZUnit]

When i playig most of games on my PC, Asus Proble started to report
+3.3V drop down to 2.88
+12V drop down to 11.392
VCore is very stable 1,584
and case speaker started to give annoying sound.
The thing is that i did not have this problem like year since i upgraded my system.
I was about to upgrade PSU about half of year ago, but then forgot about it. I will buy new PSU soon anyway, just want to know whats wrong with this one.

My current PSU is Codegen:

Model: 300X1
Power, W: 300
AC output 115v/230v, A: 1/0.5
DC +3.3v, A: 14
DC +5v, A: 30
DC +12v, A: 10
DC -5v, A: 0.5
DC -12v, A: 0.8
DC +5vSB, A: 2
Yeah and i am using it about 4 years.

 

[Nickel020]

Well if you upgraded to newer componenrts recently that might have caused this. Keep in mind that software voltage monitoring isn't terribly accurate.
Check the PSU with a voltmeter to see if the values really are off.

 

[ZUnit]

The point is that i upgraded more than year ago and started to get this couple of month ago.
I dont have voltmetter neither i know how to use it, but case speaker makes noise to so i assume its not software failure.

 

[LifeStealer]

Originally posted by: Nickel020
Well if you upgraded to newer componenrts recently that might have caused this. Keep in mind that software voltage monitoring isn't terribly accurate.
Check the PSU with a voltmeter to see if the values really are off.

Ditto.

"The point is that i upgraded more than year ago and started to get this couple of month ago.
I dont have voltmetter neither i know how to use it, but case speaker makes noise to so i assume its not software failure."

If software was innocent we wouldn't have unix Get a volt meter from the shack or take the whole thing in with you and see if they'll show you how.

 

[Operandi]

Codegen is complete crap, I'm suprised it lasted 4 years.

 

[AMD Die Hard]

You might have lost a capacitor so it can't hold the amperage. I just got a OCZ 520W power supply that rocks, I would highly recommend it (33A on the 12V rail). Also, on my old antec, on the inside it had a potentiometer that you could adjust upward to increase the amperage the unit was supplying. I was also having a 12V rail dip and it fixed my problem. I don't know if your PS has the same thing, but it might be worth looking inside it to see. It is worth mentioning that the OCZ PS has three potentiometers on the outside that you can adjust the voltage with - not that I have had to use them though.

 

[AMD Die Hard]

Also 11.392 is way too low.