Overclock was stable, but now its not?

[Minty649]

The title says it all really. I overclocked my FX 8350 to 4.5ghz on the stock voltage (1.356v) with no problems. It survived the stress test for half an hour and i have played games on it for about 100 hours roughly. However, today i went to play battlefield and it keeps crashing. So i lowered it done to 4.4ghz and now all is fine. I have played battlefield on it before with no problems. so i was just wondering why has this changed?

Build:

mobo: Asus sabertooth 990fx r2.0
GPU: R9 280x
CPU: FX 8350
PSU: EVGA Supernova G2 750w
HDD: WD 1TB
Case: NZXT Switch 810
RAM: crucial tactical tracer 2x4gb, 1600
Cooler: Noctua NH-D15

Thanks

 

[laviniuc]

how are the temperatures compared to before? could be that the thermal paste dried out...

 

[Minty649]

how are the temperatures compared to before? could be that the thermal paste dried out...

Temps are fine, dont go above 50 most if the time

 

[Undying89]

Looks like CPU has degraded, it happens. I was running my 2500k at 4.9Ghz 1.4v now it crashes so 4.8Ghz is next stable thing with same 1.4v.

 

[Minty649]

Looks like CPU has degraded, it happens. I was running my 2500k at 4.8Ghz 1.4v now it crashes so 4.8Ghz is next stable thing with same 1.4v.

i haven't even had it overclocked for that long, like a month or so