I think i have found myself a stable overclock but had to reduce vcore from its 1.4v to about 1.290v without Prime95 failing. Was going about 2 hours
without a blip before i stopped it. I used the Asus TurboV EVO to get to a stable voltage (noticing however that 1.250 on turbov is reported as 1.29 on
CPU-Z). Anyway, i went into the BIOS (P8Z77-V) and typed in 1.290v into the cpu power management and when i went back into
windows and re-ran the utilities it was back to 1.4v again.
Thank you nuke for your help. I am aware of LLC but when i went to disable it earlier today it did not have a disable option, just auto, regular, medium, high, ultra and extreme. I am not sure which to set it at.
I am currently using the latest v1616 bios (P8Z77-V). I understand your comments regarding offset but if it isnt saving my typed in vcore then how can it save anything else i type?
Is it possible for a bios to not save settings? bit worrying really.
Can I also add that when i went back into windows, the returned 1.4v was not showing via the asus software, it was Cpu-z that was showing it. Don't because of this, i dont believe that the 1.4v is not being wrongly reported (I trust cpu-z more than I do asus)
My LLC is set to medium (second setting i believe). I did read somewhere that you start low and work your way up. Trouble is though, if medium doesnt lead to issues then is there a need to take it further?
My bios (despite being asus like yours) doesnt look like your uploaded image. I will check out the monitor screen on the bios. Regarding settings not being saved.. not sure if your ROG mobo has the same as mine, but on the first screen are 3 icons/settings for how to optimize your board. I have selected the far-right setting (performance mode). Several times i have had to click this damn setting because when i go back in the bios it seems to be unselected. Recently though it seems to be saving. Hope it doesnt lead to more issues. Surely the battery is ok for saving?!?
You need to hit up Advanced mode to see all the goodies.
I just went to get some screens and noticed something interesting. When i went from Advanced to Easy and back it changed my cpu voltage to 1.30(assuming it would be thought of as a more fool proof voltage.) without asking me.
Under "Boot"(in Advanced) you will have an option to always start in Advanced mode. I suggest you try that just in case its a bug.
See, I have an easy more too
My clock speeds are with turbo so they do not show in here.
Uploaded with ImageShack.us
The bios does indeed show 1.29v/30v in the MONITOR section of the BIOS as it should. but when i get back into windows and run all the monitor software again it reverts back to 1.4v. I can prove this also by the temps shooting back up with REAL TEMPS utility. If i then go into the asus software, tweak the vcore back to 1.29v then all the monitor programs change and the temps drop again.
How the heck can i keep this consistent? the vcore fluctuated before full load with PRIME95 but level at 1.4v under full load.
Things are happening here. I tried 4.5 and its working so far under load. I must of pressed a wrong vcore setting because now win7 is at 1.30v vcore at 4.5 and peaking at about 73c. Wonder if i could lower the vcore to drop the heat further?
What would you dare me try. I fear the dreaded bsod though. Would 1.25v be ok you think @4.5? I know that all cpu's are different and theres no set pattern to these things, but in your estimation.. whats the lowest these chips at 4.5 can function. Can i get 4.6/4.7? I just want a stable 4.4/4.5 for a few weeks under normal usage then maybe increase things when ive proved stability at current settings.
Appears the mobo isnt dodgy, thank god for that /wipesbrow
Apologies for this seeming like some sort of BLOG but i want to add this..
I am an open minded guy who is willing to try anything until proven otherwise but i now know (this is for first time over-clockers like myself)
Asus overclocking utilities (although work partially) are not fool proof. I tried overclocking at 4.4 and 4.5 on this P8Z77-V and i got BSOD and failed boots but if i set the bios to defaults and just change the vcore/BCLK and CPU speed (4.3/4.4 etc) it works a treat. You may still have to tweaka few things though.
Just because your trying to over-clock using the ASUS TurboV and it fails doesnt mean the CPU is no good. I have proved this tonight.
Get in that BIOS and get tweaking. Nice try Asus but your software is half baked. They (asus) really don't know how to set/configure there own hardware! pft!!!
Ok, I tried dropping the vcore to 1.25 (bsod), 1.27 (bsod), 1.31 (ok so far).
Everything seems ok. Temps at full load are mid 70s. Can't lower vcore as CPU falls over.
Only issue I have is Ai suite has tonight popped up a +5v warning.
First time it said something like "Warning +5v 10.000000"
second time it reported "Warning +5v 0.0000000"
Very odd. I have googled this and a few forum posts relate to the same issue. Some people think it might be just Ai suite/software only and nothing really to worry about. I admit my 700w PSU is from my old build and not exactly top quality but after forking out for this new pc i thought i could maybe get away with it for a few weeks at least.
What do you think? i am monitoring the other programs incase it happens again so i can compare readings.
My thoughts exactly. After over 2 hours of 100% on Prime95 and not a single problem. Max temps got to 78c and that was just the one core. I think i can say this has been a pretty good success. I am going to shut the tests off now and see how 4.5 is on normal usage. Will be nowhere near the max throttled test values so should be nice.
Many thanks for your terrific guidance nuke. Your a gentleman. Many thanks indeed. This topic is closed i think you can say
Oh and thanks to all who helped. You know who you are!!
P.S PSU is nothing brilliant (hang head in shame) Xenta 700W 12cm Fan (2 years old and still alive lol)