Safe voltages?

[akb8812]

I have my 1800x stable at 3.9 Ghz on 1.3375 volts on the C6H. It was a bit iffy at times (stuttering in games etc...) but after raising other voltages it seems to have stabilized. It locks up for few seconds during extreme stress testing like OCCT Linpack but the PC is usable during AIDA64 stress test and after few minutes temps don't go above 70 during AIDA. But I need to run a longer test, I'm strapped for time.

Anyway, I'm wondering if everything I put in is safe in the long run.

 

VCORE - 1.3375

SOC - 1.1500

PLL - 1.8000

SB - 1.1500

LLC - Level 2

CPU Current Capability - 140%

VRM Spread Spectrum - Disabled

CPU Power Duty - Extreme

CPU Power Phase - Extreme

 

 

[WereCat]

Only 1.3375V core at 3.9GHz? Are you certain that this is 100% stable?

[akb8812]

Just now, WereCat said:

Only 1.3375V core at 3.9GHz? Are you certain that this is 100% stable?

Not 100% certain but I haven't had a crash or anything weird happening so far.

[iRileyx]

1.3375 is perfectly safe, up to about 1.375 is safe for 24/7 use.

 

I'd be tempted to say it isn't fully stable at such a low(for that cpu and clock) voltage though, unless you got a really good chip.

[WereCat]

Just now, akb8812 said:

Not 100% certain but I haven't had a crash or anything weird happening so far.

Try the Large Data Set test in OCCT. That usually (at least for me) reveals instabilities very quickly compared to any other stress test.

[katoptrys]

It should be fine. No idea about the specific voltages other than VCORE but AMD recommends anything below 1.4V for 24/7 use, and nothing above 1.45V unless there is excellent cooling (like a custom loop)

[akb8812]

4 minutes ago, WereCat said:

Try the Large Data Set test in OCCT. That usually (at least for me) reveals instabilities very quickly compared to any other stress test.

Running one now. I used to get crashed almost immediatly on that test with my i5 when everything else seemed to pass. I'll let it run for a little bit and see what happens.

[akb8812]

Well a 15 minute OCCT Large Data Set didn't do anything weird.

[Subtle Corruption]

Up to 1.4v is fine as long as it's cool enough.