GTX 580 3gb
- Thread starter Nathn
- Start date
SuB
The Webmaster
Which one is it mate? EVGA? And what clocks are you at now? And at what voltage?
I have the Hydro Copper 2's from EVGA and they usually sit at 810~820 at 1.101v happily. But I'm having heat issues with one of the cards so I'm not able to test an awful lot more than this yet...
The 3GB's don't clock as high as the 1.5GB's I'd keep that in mind when you look at what people are saying they can achieve with theirs...
I have the Hydro Copper 2's from EVGA and they usually sit at 810~820 at 1.101v happily. But I'm having heat issues with one of the cards so I'm not able to test an awful lot more than this yet...
The 3GB's don't clock as high as the 1.5GB's I'd keep that in mind when you look at what people are saying they can achieve with theirs...
NRG!
New member
I had a gainward phantom 3gb that was heaven/bf3 stable at 940 core but the memory wouldn't budge by more than 5mhz.
Not bad considering gainward is basically a cheapo brand. Sold it on for cheap though after this gen absolutely mullered it's value. At least it went to a folder (i think!).
Not bad considering gainward is basically a cheapo brand. Sold it on for cheap though after this gen absolutely mullered it's value. At least it went to a folder (i think!).
i had a EVGA GTX 580 SC 1.5GB SLI 920 on air and 965 on h20.
one card could easily clock 975-980 but capped on voltage and hold 72° loaded.
as the weaker card could only hold 965 @ 70° loaded. both on water-cooling.
sold them (wished i hadn't) and now running a single 580 DS card, till the water
block for the 660ti comes in.
airdeano
one card could easily clock 975-980 but capped on voltage and hold 72° loaded.
as the weaker card could only hold 965 @ 70° loaded. both on water-cooling.
sold them (wished i hadn't) and now running a single 580 DS card, till the water
block for the 660ti comes in.
airdeano
)
rossi94
New member
just try it .. but be carefull.
Master&Puppet
New member
I'd say 1.1v to 1.15v is pretty typical depending on how good your card and cooler is and how far you want to push it. Make sure you know what you are doing though.
There are no shortcuts - add Mhz, test, add a tiny amount of volts, test and repeat but be careful. You can and will degrade or kill your card if you don't know what you are doing.
There are no shortcuts - add Mhz, test, add a tiny amount of volts, test and repeat but be careful. You can and will degrade or kill your card if you don't know what you are doing.
SuB
The Webmaster
Best advice yet...
Fez
Moderator
As said before mate silicone lottery every car can take a different amount some can take a lot some can take very little as stated before its all about trying in small steps you want to get that balance so that its not boiling the card and its to little that the card keeps crashing or showing artifacts
At the moment I bench tested it at the specs of
Core voltage 1100
Core clock 900
Memory clock 2200
and it was fine during stress testing.. but every now and then it crashes on bf3.. It never use to on these settings either :/ is it possible its from msi afterburn updates or graphics card updates?
Also.. just wanting to ask if under settings the force constant voltage box should be ticked.
Cheers.
Core voltage 1100
Core clock 900
Memory clock 2200
and it was fine during stress testing.. but every now and then it crashes on bf3.. It never use to on these settings either :/ is it possible its from msi afterburn updates or graphics card updates?
Also.. just wanting to ask if under settings the force constant voltage box should be ticked.
Cheers.
Master&Puppet
New member
BF3 takes a toll on GPUs so it can be tricky to get stable under overclock. try dropping the overclock by 10mhz and see if it still crashes. It is best to test overclocking separately i.e.
Always overclock a GPU on a stock CPU & RAM - this eliminates issues with an unstable platform.
Overclock the core clock first leaving the vRAM at stock until you find a fully stable clock. The set the more back to stock and OC the vRAM. Only then test with both overclocked.
You'll need to use a variety of programs to test stability. I use Unigine heaven and 3d Mark 11 performance benchmark at first and then test in games/ regularly used applications (like video rendering with assisted GPU rendering) to see overall stability.
Finally test with the CPU overclocked too.
As for the constant voltage - it works just like a fixed voltage CPU overclock really. It can aid stability but will stop the card reducing voltage at idle. Practically there are very few examples of it having an effect when on - this is probably because GPU overclocking involes a smaller change in voltage than CPU overclocking so the instability issue is lessened.
Always overclock a GPU on a stock CPU & RAM - this eliminates issues with an unstable platform.
Overclock the core clock first leaving the vRAM at stock until you find a fully stable clock. The set the more back to stock and OC the vRAM. Only then test with both overclocked.
You'll need to use a variety of programs to test stability. I use Unigine heaven and 3d Mark 11 performance benchmark at first and then test in games/ regularly used applications (like video rendering with assisted GPU rendering) to see overall stability.
Finally test with the CPU overclocked too.
As for the constant voltage - it works just like a fixed voltage CPU overclock really. It can aid stability but will stop the card reducing voltage at idle. Practically there are very few examples of it having an effect when on - this is probably because GPU overclocking involes a smaller change in voltage than CPU overclocking so the instability issue is lessened.
