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[Official] MSI GTX 680 Lightning Owners Club - Page 636

post #6351 of 7827
Was using AB 2.2.3 until today. Installed 2.3.1 and edited the cfg line. How do i know if the volts are right for OC? my AB showed power limit of 300 already before the lines were added. And when it shows volts via Kombuster it says 1.212. Please indicate if i'm doing it right and that the volts are normal once lines have been edited
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post #6352 of 7827
When you turn to LN2 bios the core voltage goes to 1.21V under full load. So yes, it is normal.
post #6353 of 7827
Quote:
Originally Posted by SeekerZA View Post

Was using AB 2.2.3 until today. Installed 2.3.1 and edited the cfg line. How do i know if the volts are right for OC? my AB showed power limit of 300 already before the lines were added. And when it shows volts via Kombuster it says 1.212. Please indicate if i'm doing it right and that the volts are normal once lines have been edited

You need to use the accessory they give in the box that plugs into the back of the PCB and breaks out 2 wires for multimeter measurements (core is labeled on the PCB, but it's the one closest to the PCI-e connector). With LN2 AB will always report 1.212V but it may be higher on the hardware level. (Under full load with +100 it is actually 1.368V even though AB only reports 1.212V)
post #6354 of 7827
Thanks for help.
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post #6355 of 7827
Quote:
Originally Posted by DADDYDC650 View Post

I shouldn't need to overclock my Lightning? Blasphemy!!!

BTW, awesome rig.
post #6356 of 7827
I water cooled my 680 lightning now it go from 1150 megahertz sometimes down to 500 I don't know why usually I get around 1250 ever since I water cooled s*** changed anybody know why
post #6357 of 7827
I'm struggling with my lighting card I put in ek waterblock on and the megahertz fluctuates from 1200 to 600 and I'm only getting 43 frames second on furmark I use to stay at 1200 to 1250 and got 53 fraps with the stock cooler temperatures at 30 degrees Idol goes up to about 60 I'll take any advice I can get
post #6358 of 7827
Quote:
Originally Posted by jessew View Post

I water cooled my 680 lightning now it go from 1150 megahertz sometimes down to 500 I don't know why usually I get around 1250 ever since I water cooled s*** changed anybody know why

Maybe you accidentally moved the BIOS select switch while handling it? Make sure it is set for LN2.

Freq is meant to settle down when there is not a heavy load. Nvidia CP has a power setting. I use adaptive in global, and maximum performance in each game or benchmark profile, although that is probably not necessary; with adaptive it will automatically increase under load.

Edit: I should have added that one reason to use max perf in game profiles is this warning from nvidia that some apps don't respond to the adaptive setting correctly.
Edited by wiredg - 3/15/13 at 7:57pm
post #6359 of 7827
Any of you running 314.14 beta drivers? I keep noticing some overclocking issues whenever I run this particular set of drivers. Clocks won't stay and some other odd issues with afterburner but as soon as I switch back to 314.07 they're fine.

Seems like it has something to do with the power limit. If I touch it, the clocks go back to normal, I touch it again, it under clocks.
Edited by gl0ry - 3/15/13 at 10:23pm
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post #6360 of 7827
I'm using those beta and despite the poor results in bench and questionable perf in game, I don't have such clock issue.
Edited by Kimir - 3/16/13 at 8:09am
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