Phenom II x3 720BE problem

[kurahk7]

Hey guys, I was tweaking voltages for the AMD Phenom II x3 720BE today and managed to lower it from the stock of 1.325v to 1.2v. I left the computer to run Prime95 and now after I came back from dinner the different processor cores are significantly behind each other (see atached pic). Is this because I gave it too less volts and it's trying to cope with it? I am also running it on the stock hsf.
Edit: Is it also safe to leave it at this current state?

 

[josef613]

so did you leave it at stock speed?
Yes, lowering voltage could cause it to fall behind a little, but i have noticed that when i ran it before, one core was a slight bit behind the other

 

[kurahk7]

so did you leave it at stock speed?
Yes, lowering voltage could cause it to fall behind a little, but i have noticed that when i ran it before, one core was a slight bit behind the other

It's at stock clocks.

 

[josef613]

yea, as long as you're not experiencing instability, you should be ok, although it might have better performance at stock voltages.

 

[kurahk7]

yea, as long as you're not experiencing instability, you should be ok, although it might have better performance at stock voltages.

I guess I'll just leave it running PRIME95 overnight to see if it's stable then. Thanks.

 

[josef613]

alright, good luck.
you could also try stock voltage afterwards and see if it runs better

 

[Wishmaster]

If you used the PC for anything .. Internet browsing whatever while prime was running this can happen.

Also background tasks, AV scans etc.

It has to get CPU time from somewhere.

If Stable for 12hrs, I would think you're OK. The fact a couple threads are a step or 2 behind just means something needed CPU time from that core during the test and it fell behind in its work because of it. Nothing to worry about.

 

[Lordbob75]

That is an interesting little tidbit there, thanks for explaining that Wishmaster.

Actually, leaving it at stock and dropping voltage sounds like a really good idea, especially with Intel CPUs.

~Lordbob

 

[kurahk7]

Ok, I ran Prime95 for over 12 hours and it was completely stable but core number 2 was like 4 tests ahead of the other 2 cores, so I'll just assume that core number 2 is the stronger core unless MSE secretly ran a scan in the background while I was asleep. Temperatures also topped out at around 45C with the AMD stock cooler which is pretty good I think. Reps to all of you that replied .

 

[josef613]

Yea, MSE could cause 1 core to fall behind due to background tasks, but i'm glad that it's stable, and that is a good temp for the stock cooler.

 

[Nemix]

@ kurahk7

I think undervolting and underclocking in general is pretty safe, just as long as you Prime95 the machine for stability. I run my Phenom II X2 555 BE @ 2.1Ghz (1.120v) when downloading overnight, I haven't tried going lower on the volts but I'm pretty sure I can.