Is My PSU on its way out?

[humbug]

The PSU is 3 years old, XFX 750 Pro (SeaSonic OEM)
Motherboard: Asus Sabertooth 990FX, 3 years old.
GPU: Powercolor PCS+ 290, 3 months old
CPU: AMD FX-8350, 2 moths old

I have had the PC freeze on me if i overclock the CPU high (past 4.6Ghz) FX-8350, i can't work out if its the CPU, the Motherboard, the PSU....

I have benched the GPU @ 1225/1500 with 1.4v, not a problem. its solid... never fails everytime i do it.

These are the most power greedy components i ever run on this PSU, prior to this GPU / CPU was P-II x6 @ 4 to 4.2Ghz and a 7870XT (Tahiti LE) @ 1150Mhz.

Aside from the unknown freezing when overclocking the CPU past 4.6Ghz, the 12v Rail V-Droop is what concerns me.

In GPU-Z it drops from an already low 11.75v to 11.63v, but it gets worse, if i OCCT the GPU it drops right down to about 11.45v

When i first got the PSU it never dropped below 11.9 in GPU-Z, i don't know about OCCT, HWMonitor i don't think it ever dropped below 12v

There seems to be a marked decline in 12v output when loaded, about 30mv, but then i have never had components using this much power on it.

i'd like to know what you think, is what you see here normal for a setup like mine, or should i be concerned?

Thanks.

Pics...

 

[humbug]

Software monitoring is never very accurate.

That being said your components under heavy load are going to stress that PSU hard. AMD CPU is very power hungry as is overclocked R290X. Maybe also you hit the limit of the CPU or the power delivery to the CPU of the motherboard. Many factors to consider.

Can you try another PSU just to see.

Is that PSU single rail on 12v??

Yes, single 12v rail, 62 Amps

http://www.hardwaresecrets.com/article/XFX-PRO-750-W-Power-Supply-Review/1182

If I turn off 2 or 4 cores to reduce power and try to overclock past 4.6Ghz is that a good way to test for Motherboard CPU power limits?

Do you have a multimeter to manually to check the voltages?

No, but I might get one.

 

[humbug]

I ran it with 4 cores at 4.7Ghz and stressed it, not a problem.

Did the same thing with 6 cores and it froze after about 8 minutes, i would have thought it would be ok with 6 at 4.7 if its fine with 8 at 4.6.

Some people are running them at 5Ghz with higher volts on the same Motherboard.