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[Official] MSI GTX 680 Lightning Owners Club - Page 46

post #451 of 7827
Hi buddy, thx for the reply..I never have my fans on auto, all my previous card used to be water cooled, with this card i have tried 50%..70%..and even 100%....no luck at all, I understand cooling is very crucial to overclocked components, I do have a 700d with 2x140mm side fans blowing (custom ppcs corsair 700d panel), i keep the fan speed at 60% which keeps the temps around 52-54C..As for power measurements I don't have a volt meter hooked up but i am looking at TPD from GPU-z Charts and Msi Afterburner
post #452 of 7827
Quote:
Originally Posted by FtW 420 View Post

What are the temperatures loading at? In a case with warm ambient can make a difference in the max overclock compared to caseless or lower ambient. I haven't experimented too much with temps, but with many cards loading at say 70° can make a fair bit of difference to the overclock compared to loading at 50°. I would think it can do better with asic 94%.
Just curious, how are you reading watts consumed by the gpu?

Hi, i am using TPD from GPU-z and Msi after burner smile.gif
post #453 of 7827
Thread Starter 
Quote:
Originally Posted by Majin SSJ Eric View Post

Did MSI every officially promise voltage control? I don't remember that. Anyway, it goes back to what I've been saying about Kepler all along. Nvidia obviously locked down voltage for a reason and it may be more complicated to offer it than people realize. Still glad I stuck with my 7970's (though even without voltage control your 3dmark11 scores stomp mine into the pavement)....

yeah they promised it by printing it all over the retail boxes and heavily advertising it at computex ...
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post #454 of 7827
Quote:
Originally Posted by xoleras View Post

I think manual fan will fix your problems. I've said it before and will say it again, auto fan is NOT ADEQUATE most of the time for high overclocks
FYI, I get 1352 completely stable in SLI but if I use auto fan I get artifacts at signifigantly lower clock speeds. You NEED manual fan. I thought this was common knowledge among overclockers but apparently some people still use auto fan. This is very odd to me as in the Fermi days, people overclocking accepted as common knowledge that if you overclock, you use high manual fan settings.
Lets use an analogy, if you overclock a 2600k to 4.8ghz, do you use the stock fan? Hell no! You need something more adequate. No matter what anyone tells you, manual fan will do a much better job at preventing artifacts and weirdness with high overclocks, period.

Could you please explain why lower temperature i.e. manual fan can reduce artifacts? I thought artifacts are produced as a result of heavy mem oc, when data moves thru the mem faster than it can handle.
BTW, I'm using RV02-E and my Lightning can hit 1333mhz/+643 stable with LN2 bios, tested in Witcher 2 with ubersampling on. It seems the Kayran place is a great location to check for visual artifacts. I've seen artifacts when I did +652 but not for +643 on the memory.
Also, I do think the vertical mounting in my chassis reduces TF4's cooling efficiency. Mine is hitting 75C at that stable clock when fully stressed, fan @ 85%. While it seems the other people in this thread only hit the upper 50's C after OC
post #455 of 7827
Quote:
Originally Posted by xoleras View Post

I think manual fan will fix your problems. I've said it before and will say it again, auto fan is NOT ADEQUATE most of the time for high overclocks
FYI, I get 1352 completely stable in SLI but if I use auto fan I get artifacts at signifigantly lower clock speeds. You NEED manual fan. I thought this was common knowledge among overclockers but apparently some people still use auto fan. This is very odd to me as in the Fermi days, people overclocking accepted as common knowledge that if you overclock, you use high manual fan settings.
Lets use an analogy, if you overclock a 2600k to 4.8ghz, do you use the stock fan? Hell no! You need something more adequate. No matter what anyone tells you, manual fan will do a much better job at preventing artifacts and weirdness with high overclocks, period.

Here is my setup with pics
The max settings GPU-z shows were taken with Heaven Dx11 running, Currently the card is running Bios #1..core at 1239mhz, memory at 6800mhz, 133% and 100mv+
and specs are as follows
i5 2500k @ 4.5ghz
16gb corsair vengeance memory @ 1600
Asrock p67 fatality board
Creative X-fi
Wd-raptor 300gb
Enermax Max revo 1350
Phobya 560mm rad, plus 360mm Xspc Rad, D5 pump

gpu-z.png

DSC_0212.jpg

DSC_0208.jpg

thx
post #456 of 7827
Quote:
Originally Posted by DraculaxAOE View Post

Could you please explain why lower temperature i.e. manual fan can reduce artifacts? I thought artifacts are produced as a result of heavy mem oc, when data moves thru the mem faster than it can handle.
BTW, I'm using RV02-E and my Lightning can hit 1333mhz/+643 stable with LN2 bios, tested in Witcher 2 with ubersampling on. It seems the Kayran place is a great location to check for visual artifacts. I've seen artifacts when I did +652 but not for +643 on the memory.
Also, I do think the vertical mounting in my chassis reduces TF4's cooling efficiency. Mine is hitting 75C at that stable clock when fully stressed, fan @ 85%. While it seems the other people in this thread only hit the upper 50's C after OC

Yeah, the highest I'veever seen is 63c, but normally is hovering 55-59c, in 68- 70c ambient temperature room.
post #457 of 7827
Quote:
Originally Posted by DraculaxAOE View Post

Could you please explain why lower temperature i.e. manual fan can reduce artifacts? I thought artifacts are produced as a result of heavy mem oc, when data moves thru the mem faster than it can handle.
BTW, I'm using RV02-E and my Lightning can hit 1333mhz/+643 stable with LN2 bios, tested in Witcher 2 with ubersampling on. It seems the Kayran place is a great location to check for visual artifacts. I've seen artifacts when I did +652 but not for +643 on the memory.
Also, I do think the vertical mounting in my chassis reduces TF4's cooling efficiency. Mine is hitting 75C at that stable clock when fully stressed, fan @ 85%. While it seems the other people in this thread only hit the upper 50's C after OC

Artifacts can happen with any unstable OC. You guys are focusing on core temp too much, the VRM temp is hidden and is very much affected by fan speed, and it is not reported by afterburner. The VRM does not have a ton of heatpipes connected to it to prevent heat buildup, that is the critical difference between VRM temps and core temps. This has been the case with all aftermarket GPUs i've owned - with my lightnings I cannot get 24/7 stbale operation at 1352 in SLI unless I use manual fan 70% or greater. If I use auto fan I lock up in heaven or get artifacts. Take this for what you will, its like overclocking a CPU without proper cooling...core temp doesn't tell you everything.

I'm actually in disbelief that people insist on using auto fan with high overclocks, to me it seems utterly ridiculous because a few years ago it was common knowledge that high overclocks with any GPU = manual fan no matter what, i'm not sure what has changed and why people have shifted their mindsets. It was not like that a few years ago....i'm not sure if some people are relatively new to oc'ing gpu's or what. It does seem like people demand more for less as the years have gone by, high overclocks aren't free (in terms of temps/fanspeeds)

edit: it is odd to see this rash of new posters who have just registered with their 1st post talking about a MSI lightning experience and then disappearing
Edited by xoleras - 7/15/12 at 10:02pm
post #458 of 7827
Quote:
Originally Posted by xoleras View Post

Artifacts can happen with any unstable OC. You guys are focusing on core temp too much, the VRM temp is hidden and is very much affected by fan speed, and it is not reported by afterburner. The VRM does not have a ton of heatpipes connected to it to prevent heat buildup, that is the critical difference between VRM temps and core temps. This has been the case with all aftermarket GPUs i've owned - with my lightnings I cannot get 24/7 stbale operation at 1352 in SLI unless I use manual fan 70% or greater. If I use auto fan I lock up in heaven or get artifacts. Take this for what you will, its like overclocking a CPU without proper cooling...core temp doesn't tell you everything.
I'm actually in disbelief that people insist on using auto fan with high overclocks, to me it seems utterly ridiculous because a few years ago it was common knowledge that high overclocks with any GPU = manual fan no matter what, i'm not sure what has changed and why people have shifted their mindsets. It was not like that a few years ago....i'm not sure if some people are relatively new to oc'ing gpu's or what. It does seem like people demand more for less as the years have gone by, high overclocks aren't free (in terms of temps/fanspeeds)
edit: it is odd to see this rash of new posters who have just registered with their 1st post talking about a MSI lightning experience and then disappearing, hmm, wonder whats going on here? Interesting,
Hi, naw man i am just looking for a Fix that's all, and this is the only lightning thread atm smile.gif....i am gona try placing fans blowing air horizontally on the card and see if that helps..thx
post #459 of 7827
Quote:
Originally Posted by xoleras View Post

Artifacts can happen with any unstable OC. You guys are focusing on core temp too much, the VRM temp is hidden and is very much affected by fan speed, and it is not reported by afterburner. The VRM does not have a ton of heatpipes connected to it to prevent heat buildup, that is the critical difference between VRM temps and core temps. This has been the case with all aftermarket GPUs i've owned - with my lightnings I cannot get 24/7 stbale operation at 1352 in SLI unless I use manual fan 70% or greater. If I use auto fan I lock up in heaven or get artifacts. Take this for what you will, its like overclocking a CPU without proper cooling...core temp doesn't tell you everything.
I'm actually in disbelief that people insist on using auto fan with high overclocks, to me it seems utterly ridiculous because a few years ago it was common knowledge that high overclocks with any GPU = manual fan no matter what, i'm not sure what has changed and why people have shifted their mindsets. It was not like that a few years ago....i'm not sure if some people are relatively new to oc'ing gpu's or what. It does seem like people demand more for less as the years have gone by, high overclocks aren't free (in terms of temps/fanspeeds)
edit: it is odd to see this rash of new posters who have just registered with their 1st post talking about a MSI lightning experience and then disappearing

This could be the reason for getting artifacts with auto fan. Thanks!

I tried to test the TF4 cooling efficiency by inverting my RV02-E 90 degrees, so that its heat pipes had the same orientation as normal chassis. However, I couldn't boot at all, the monitor failed to turn on. So then I put my chassis back into its original position, boot up (got "overclocking failed" message but I could still get into OS), invert the chassis, and my computer immediately froze. Not sure what would cause this. I'm using Silver Arrow for the CPU cooler. Everything is fine when putting the chassis in its normal orientation.

352
Edited by DraculaxAOE - 7/15/12 at 10:42pm
post #460 of 7827
Quote:
Originally Posted by Bosniac View Post

in 68- 70c ambient temperature room.

I hope you meant "F" not "C" lol
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CPUMotherboardGraphicsRAM
Core i5 2500k 4.7GHz Gigabyte Z68X-UD3H-B3 MSI GTX 670 PE OC 1365MHz core Kingston 1600MHz 8G (2x4) 
Hard DriveHard DriveOptical DriveCooling
WD Caviar Black 2T WD Caviar Green 1T DVD drive sata cooler master hyper 212 plus 
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My rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 2500k 4.7GHz Gigabyte Z68X-UD3H-B3 MSI GTX 670 PE OC 1365MHz core Kingston 1600MHz 8G (2x4) 
Hard DriveHard DriveOptical DriveCooling
WD Caviar Black 2T WD Caviar Green 1T DVD drive sata cooler master hyper 212 plus 
OSMonitorKeyboardPower
Windows 7 Enterprise Asus VH236H 23" Logitech G15 v1 Seasonic 860w Platinum 
CaseMouseAudio
Antec Eleven Hundred Logitech G500 Integrated (realtek) 
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