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[Official] MSI GTX 680 Lightning Owners Club - Page 472

post #4711 of 7827
Quote:
Originally Posted by CryptiK View Post

Played some with v2.2.3 - still not a great clocker, needs >1.30v for 1320+ core

That said, mem seems strong on this one. Did some testing with kombustor which seems to load mem harder than games, see below stable for over 20mins when I stopped it.

+855 mem (7720 MHz effective) at stock mem voltage. Core needs +18mv (1.25v real @ DMM) for 1254 stable

What's better higher clocking core or higher clocking mem? I though these cards were more mem bandwidth limited and core was less important in terms of actual performance.

It's not terrible. I've had one that was even worse.

Kombuster doesn't really help when testing stability. It's good for testing temperatures. But for stability, use Heaven and in-game testing. Kombuster doesn't crash often for me but in games it will in 2 seconds.

What did you have the mem voltage at for +855mhz? Well, either way, I'd test in-game, it's probably not stable.

Memory OC will probably get better results, unless you're stuck at a full load on the core constantly.
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post #4712 of 7827
+855 mem was at stock voltage.

I found kombuster showed my +900 mem was not stable artifacting immediately but I could game at that no problem. Also running heaven/gaming/kombuser etc +855 (7720 effective) is totally solid.
post #4713 of 7827
Quote:
Originally Posted by CryptiK View Post

Also running heaven/gaming/kombuser etc +855 (7720 effective) is totally solid.
Then you have one hell of card thumb.gif
post #4714 of 7827
Quote:
Originally Posted by CryptiK View Post

+855 mem was at stock voltage.

I found kombuster showed my +900 mem was not stable artifacting immediately but I could game at that no problem. Also running heaven/gaming/kombuser etc +855 (7720 effective) is totally solid.

Quote:
Originally Posted by elbubi View Post

Quote:
Originally Posted by CryptiK View Post

Also running heaven/gaming/kombuser etc +855 (7720 effective) is totally solid.
Then you have one hell of card thumb.gif

I'd say so. Damn! Can you do a stock 3dMark11 run and a run with just the memory overclocked +855mhz, just to see the difference in graphics scores? redface.gif

Yeah I don't know. I could run Kombuster for temps, but games would crash at the same clock, so I don't often use it for stability. The games you're actually going to be using the OC for seem like the best test to me smile.gif. Also, Heaven is a pretty good indicator. It seems like if I have an OC that's stable in Heaven, it's stable in most games. Except BF3, which seems to be a few mhz lower than Heaven for stability.
Edited by dph314 - 1/1/13 at 7:23am
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post #4715 of 7827
Thanks but TBH I'm still kinda disappointed it doesn't have a great core frown.gif

Here's 3DM11 comparisons you asked for. ~300 points difference.

Stock



+855 mem

post #4716 of 7827
Hey there

i am going to join the club in about 3 days and i would like to ask you some questions ?

I already did some research on overclocking this baby (3A BIOS and AB 2.2.3 FTW), but I am wondering,
is it safe to max all settings if needed ? I mean can I use +93mv core, +100mv mem and +50mv AUX and 300 % power target for gaming and doing normal day stuff ? Lets say i can oc the card with atributes mentioned above to something like 1300 / 7000. Is there any danger when I would be playing say BF3 for 5 hours in a row ? Ofc looking on temps all the time.

Oh and on that topic comes my second question - what temperatures can you measure in Afterburner and also what are max safe temps for core / mem / AUX etc. ? I am coming from ASUS Matrix 580 Platinum and I could read core / mem / power and board temps in GPU Tweak monitor so I am asking.

Thank you for the answers
Edited by Lukas026 - 1/1/13 at 9:13am
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post #4717 of 7827
I would say you had better test your chip/mem first and you are going to see how the card goes.

IMHO try to run games etc. on LN2 BIOS at the stock voltage , 93mV for 24/7 especially on air
is too much and not really needed.
smile.gif
post #4718 of 7827
Quote:
Originally Posted by Lukas026 View Post

Hey there
i am going to join the club in about 3 days and i would like to ask you some questions ?
I already did some research on overclocking this baby (3A BIOS and AB 2.2.3 FTW), but I am wondering,
is it safe to max all settings if needed ? I mean can I use +93mv core, +100mv mem and +50mv AUX and 300 % power target for gaming and doing normal day stuff ? Lets say i can oc the card with atributes mentioned above to something like 1300 / 7000. Is there any danger when I would be playing say BF3 for 5 hours in a row ? Ofc looking on temps all the time.
Oh and on that topic comes my second question - what temperatures can you measure in Afterburner and also what are max safe temps for core / mem / AUX etc. ? I am coming from ASUS Matrix 580 Platinum and I could read core / mem / power and board temps in GPU Tweak monitor so I am asking.
Thank you for the answers

I run mine maxxed. My gpu temp stays low even with the added voltage. My max temp is around 60C with a custom fan profile that is running at about 55% for that temp. All in all I do not see an issue running max vcore as my temps are great.
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post #4719 of 7827
thanks for the replies...keep them coming

but I was more concerned about mem and aux temps ? any info on that ? also what AB allows to monitor ?
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post #4720 of 7827
Core, mem, vrm temps
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