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Emergency... vcore at 1.78v on SB? WTH help please[BUG CONFIRMED] - Page 2

post #11 of 28
the VRm CAN handle 1.78v with ease. Anyways do you have a digital multimeter? and why leave it at 1.78v? i think its just a glitch. Go buy a digital multimeter, and I can tell you where to measure the vcore.
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post #12 of 28
Thread Starter 
i am going to head out to a hardware store as soon as i can... my 24/7 overclock is still stable where it is... it wasn't at 1.778 for more than 5 minutes.. do you think i did permanent damage?

EDIT: i was able to check the temperature in bios when it was at a supposed 1.78v... it was reading 58C at idle??
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post #13 of 28
I was about to post asking you to check the idle temps, then I saw your last post.

Yeah if it was reading 58C at idle then that is definitely a bug.
You may want to PM Stasio and LSD about it or mention it on tweaktown and see if they can get it confirmed with gigabyte support.

However, have you flashed your BIOS to a recent version or any newer version? Have you tried any of the F3 betas or the final? (Some people liked the last F3 beta more than the final, for the UD4).

If you did flash any previous BIOS, did you clear the CMOS after flashing? Not clearing CMOS can cause strange issues to happen. Very strange.

Try a CMOS clear. Or flash a newer BIOS and then clear CMOS. Then after setting up all your settings again, see if 1.2 VTT causes the vcore to shoot up like that again. If it does, you have a valid bug report to submit.

Did you do stress testing at your 24/7 overclock? Did you verify with that that you're still stable at 5 ghz and 1.45v? (If yes, then no damage occured).
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post #14 of 28
Quote:
Originally Posted by badatgames18 View Post
i am going to head out to a hardware store as soon as i can... my 24/7 overclock is still stable where it is... it wasn't at 1.778 for more than 5 minutes.. do you think i did permanent damage?

EDIT: i was able to check the temperature in bios when it was at a supposed 1.78v... it was reading 58C at idle??
bios temps are usually high because cpu is not at idle, so if it was showing 58c in bios it would have been something like 45/48c in os at idle which is obviously high.

I personally don't think you have caused any permanent damage, these sb chips are quite tolerant and it was only for a coule of minutes.
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post #15 of 28
even if the voltages got that high, the temps would've sky rocketed and shut down the PC in an instant.
post #16 of 28
Quote:
Originally Posted by phaseshift View Post
even if the voltages got that high, the temps would've sky rocketed and shut down the PC in an instant.
Pretty hard to do that with the OP's cooling.

@ OP -

Just try to get in contact with Gigabyte or perhaps try reinstalling/updating the Bios.
    
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post #17 of 28
Thread Starter 
thanks guys... i contacted gigabyte customer support... hopefully they answer shortly....


I am on f3 the final bios on the ud4 b3... i don't like it as much as f3d imho... llc seems a little off with this compared to f3d
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post #18 of 28
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post #19 of 28
Quote:
Originally Posted by hli53194 View Post
Hmm, Gigabyte makes good boards, so somehow I think it's just a read error. Perhaps you can measure with a multimeter?
Doesn't mean said good boards don't have a BAD BIOS bios that could bug out and use the GOOD board's quality VRM to feed the chip absurd voltage.
 
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post #20 of 28
If he was 52C idle, with his good cooling, then its almost guaranteed that he was at 1.78v, or close to it. From what I've seen at least in my tests, every 0.1v rise in idle vcore (in BIOS) raises the CPU temp by about 5C (on high end air, at least). So he was definitely ABOVE 1.6v and may have been at 1.7v. And since he's on water, 1.78 looks about right.

Seeing all the bugs people are seeing with overshooting and wild voltage swings in the F3 final BIOS, I'm not surprised such a bug exists.

I already went back to f3g beta on my UD5, for now.

@OP: Does the same bug happen on the very last beta bios for the UD4 ?

Try flashing back and testing it (flash back is perfectly safe, though i use flashSPI in a DOS usb flash drive).

Please post these results on xtremesystems and on the tweaktown GB thread, so someone can contact the engineers about this, as that is a very serious bug.
Edited by Falkentyne - 4/11/11 at 5:08am
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