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I7 3770k Offset question.

3K views 15 replies 7 participants last post by  zakk 
#1 ·
I have my i7 3770k currently @ 4.3ghz. running offset mode at -0.020v. long story short now on prime I run up to 1.272v sometimes it drops down to 1.264v. I have been lowering my offset each time I test it out for stability issues all is good just seems that my load voltage isn't dropping on prime each time I lower my offset voltage. Am I looking at something wrong? I use CPU-Z to check out voltages and what have you. Core temp for temps. Temps are really good by the way.
 
#4 ·
Quote:
Originally Posted by NAWZ77 View Post

put it on +0.02 and you should be good i had that problem today when u was doing some tweaking
biggrin.gif
+0.02? My offset choices start at +0.05 or -0.05. Now it is still running stable with out any problems im just trying to run the lowest voltage on mac load I possibly can. Right now its set to -0.020v @ 4.4ghz. Running stable but hitting 1.272v - 1.264v. Bounces just a bit mainly stays at 1.272v though.
 
#5 ·
Mhh, that is bit strange actually, I'm having a -0.010v offset and have cpuZ reporting 1.160v during full load @4.5Ghz. I would at least expect your voltage to stay a bit lower with those settings. Can you maybe post a bios screenshot so we can see the other settings?

Cheers.
 
#6 ·
I had a similar issue with my old MVG where the vcore (and other settings) weren't being reflected in Windows after I updated in UEFI/BIOS - it ended up being a BIOS issue that affectd a few Asus boards. I ended up rolling back to an earlier version.

Vcore wise though, that's also a little higher than I'd expect to see for 4.3ghz.
 
#7 ·
Quote:
Originally Posted by braincracking View Post

Mhh, that is bit strange actually, I'm having a -0.010v offset and have cpuZ reporting 1.160v during full load @4.5Ghz. I would at least expect your voltage to stay a bit lower with those settings. Can you maybe post a bios screenshot so we can see the other settings?

Cheers.
Sure thing, give me a little bit. I take care of that here shortly, thanks. :)
 
#8 ·
Quote:
Originally Posted by one80 View Post

I had a similar issue with my old MVG where the vcore (and other settings) weren't being reflected in Windows after I updated in UEFI/BIOS - it ended up being a BIOS issue that affectd a few Asus boards. I ended up rolling back to an earlier version.

Vcore wise though, that's also a little higher than I'd expect to see for 4.3ghz.
Same thing I'm thinking. I have it set to -0.020v offset OC'd to 4.4ghz and running prime95 its mainly sits at 1.272v, sometimes drops to 1.264v only for an instanvce and sometimes goes up to 1.280v only for an instance. Weird. I'm pretty sure when I was at -0.015 it was all at the same voltages running prime @ 4.4ghz. So that's whats sonfusing the heck outta me. BTW I'm on an AsRock Extreme 6 mobo.
 
#11 ·
#15 ·
isn't there's a calculation for offset voltage ?
I took the Vcore in BIOS and subtract it with the highest VID of the CPU
for eg: 1.20v(my Bios Voltage) - 1.1559v (my highest VID as shown by CoreTemp during Stress Test)
so my Offset will be +0.0441v since in this case my Bios Voltage value is Bigger than my VID so it will be positive
thats how i set up my Offset....hope this helps
smile.gif
 
#16 ·
Quote:
Originally Posted by naved777 View Post

isn't there's a calculation for offset voltage ?
I took the Vcore in BIOS and subtract it with the highest VID of the CPU
for eg: 1.20v(my Bios Voltage) - 1.1559v (my highest VID as shown by CoreTemp during Stress Test)
so my Offset will be +0.0441v since in this case my Bios Voltage value is Bigger than my VID so it will be positive
thats how i set up my Offset....hope this helps
smile.gif
Ok I see what you mean so mine is reading as this:
@ 4.4ghz Core Temp reads VID = 1.3160v - 1.3210v
Cpu - Z reads core voltage @ 1.272v - 1.280v.

So it seems that I'm actually running a lower voltage then VID on prime95. My Offset is sitting at -0.020v. Should I leve it be or do something with my Offset VCore? I was just trying to get it OC to around 4.4ghz - 4.5ghz Offset mode at the lowest possible stable Vcore I could use for obvious reason, lower temps less strain the works. Just doesn't seem when I lower my offset Vcore it really changes the prime vcore that much if any at all. Maybe I should lower it to -0.025v and see what happens with the nuimbers?

EDIT
Ok so I dropped it down another notch to Offset of -0.025v. Core Temp VID did not change from before. Cpu-z Showed 1.272v - 1.264v. It never went up to 1.280v on this prime run. So I'm assuming the lower offset voltage is doing its job then? It dropped down to 1.264v at times with the previous offset but mainely stuck @ 1.272v - 1.280v. Never went to 1.280v this prime95 run. Max temps went down a notch to it seems. My max temp on a single core was 75c running 2 full cycles of prime95. Seems good. But I still think I can go much lower voltage wise @ 4.4ghz and get even better temps and what have you.
 
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