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Offset not working, Haswell+ASUS board

post #1 of 15
Thread Starter 
I recently purchased a 4770k and an ASUS Z87-Pro motherboard. I'm pretty sure I've found my stable voltage for 4.5GHz (1.26-1.27V), so I'm now looking to move to offset voltage for power efficiency and to improve the longevity of my CPU. I'm almost positive that all my settings are correct (never had an issue with my sandy bridge using offset). I've tried various LLC's, etc. I have offset enabled with a +.154 offset, I have EIST enabled, all C states enabled, and no matter what I do, CPU-Z, realtemp, and AIDA64 all show that my CPU sits at a flat 4.5GHz even at idle. Can anyone think of a reason that my offset is not throttling clock speeds/voltage when idle?
post #2 of 15
Do you have windows power plan options set to balanced? I'm betting you have it set to performace mode. Won't downclock if you leave it at performance.

Side note, that offset seems way high, did you use the VID to find that?
post #3 of 15
Thread Starter 
Thanks for the input, I'll have to check later. It's very possible that my power plan is set to performance due to suggestions I read on optimizing my SSD, although I would've had the same power plan with my sandy bridge that worked fine in offset. You're probably right about the offset value - I didn't use the VID, I typically just trial and error under load until I get the right load voltage for my max multiplier (x45 in this case). After I tweak my windows power settings later and get offset mode to actually function, I'll be playing with the offset value until I get the lowest stable offset under load.
post #4 of 15
whats your vid? offset looks high

its pretty tough to guess an offset without a validation on what VID you are running at. i would not guess...

I have never put an offset that high usually im around +0.030 or - 0.005...

Check CPUZ and see if your V-core is not running over your what your suppose to be if you say your V-core was stable in manual mode at 1.270 then -+ VID should be just around 0.0**. I would not say its stable since your not sure if its stable at 1.26 or 1.27...

Mine was stable at 1.28 was not stable at 1.275 or 1.270... you have to run it for 12 hours up to 24 hours for stability test. When i tested mine at 1.275 it crashed after 17 hours. i up the V-core to 1.28 and passes 24hours. after that i tested it with intelburntest which will boost the temp up in max mode. Prime 95 will test your system but does not push your cpu to max. Intelburntest will test your system fully to the max at max settings and will show higher cpu temperature. Prime 95 at 24 test my highest temp was at 76 with Intel burntest at max settings was showing 83-85. downside to prime 95 is that you need to test it for 24 hours with Intelburntest at max settings will test it for an hour and half the most..

yes your computer will run stable cause you might be running more V-core than what the chip requires. With your offset settings thats pretty high IMO not sure if haswell chips run at a higher VID.

keep in mine that if your VID is higher than your V-core your offset should be - (minus)
If your V-core is higher than your VID then offset should be + (plus)
Edited by grail05 - 6/6/13 at 6:06am
post #5 of 15
Thread Starter 
With a .154 offset I'm getting 1.267V under 100% load at x45, which seems about right to me. The question is whether my offset voltage value is even being applied since my machine isn't downclocking/downvolting at idle currently. If it is, I should be fine. If it's not, my offset is going to end up being something like + .001. I know for a fact it won't be negative.
post #6 of 15
Definitely check the power plan, and to find offset you don't really need to play with it to find the correct number. Just set it to manual with the 1.26 or 1.27 you said was stable, put it under prime load and use CPU-z to find your VID. VID will fluctuate some but take the number that stays on there the most then it's just

(Vcore) MINUS (VID) = +/- offset number
post #7 of 15
Quote:
Originally Posted by Exolaris View Post

With a .154 offset I'm getting 1.267V under 100% load at x45, which seems about right to me. The question is whether my offset voltage value is even being applied since my machine isn't downclocking/downvolting at idle currently. If it is, I should be fine. If it's not, my offset is going to end up being something like + .001. I know for a fact it won't be negative.

did you find out your VID? if not you cant guess, just cause your system is running stable doesnt mean you got the correct settings.

have you tried testing PRIME 95 12 - 24 hours? if you dont have the time to test run INTELBURNTEST at max settings. see if that passes.

but you really need to get your VID.
Edited by grail05 - 6/6/13 at 6:12am
post #8 of 15
If RealTemp shows your CPU at 4.5 GHz when idle then that means all of your C States like C1E, C3 and C6 have been disabled. When overclocking, some motherboards have been known to ignore your bios selections when it comes to C States. You can check what C States are being used with this version of RealTemp.

RealTemp T|I Edition
http://www.overclock.net/t/1330144/realtemp-t-i-edition
post #9 of 15
Quote:
Originally Posted by unclewebb View Post

If RealTemp shows your CPU at 4.5 GHz when idle then that means all of your C States like C1E, C3 and C6 have been disabled. When overclocking, some motherboards have been known to ignore your bios selections when it comes to C States. You can check what C States are being used with this version of RealTemp.

RealTemp T|I Edition
http://www.overclock.net/t/1330144/realtemp-t-i-edition

I agree,

I believed i have ine set to... i have to check when i get home.

C1E = ENABLE

C3 = DISABLED

C6= DISABLED

OP should check this settings. but before you do check your VID.
post #10 of 15
Thread Starter 
I think you're focusing way too much on the VID thing. VID is only useful for offset overclocking insofar as it gives you a reference point for what offset voltage to use. Trial and error works just as well.
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