Nvidia 6800nu overclocking help

[Lexus UK]

I own a Galaxy Nvidia 6800nu graphics card (Like This)which comes standard with an arctic cooler. My current clock speeds are GPU: 375mhz MEM: 900Mhz. I have 16 pixel pipes but only 5 vertex pipes due to artifacts. I currently get 4672 in 3dmark05.

Ever since I have had the card the load temp barely reaches 55degrees C, idle is below 50. Although I cant push the gpu/mem speed any higher stably looking at the temperatures I dont feel I am pushing the card at all given its cooling. The memory chips on there are actually rated at 900mhz.

I have seen some sites where people have flashed the bios on the card in order to increase the voltage on the gpu in order to achieve a higher overclock (400-450mhz). Does anyone know how to do this? Or how I can increase my overclock?

 

[hans030390]

Have you even tried OCing it more? I'm getting confused at your post.

 

[Crescent13]

Originally posted by: hans030390
Have you even tried OCing it more? I'm getting confused at your post.

me too. If you want more overclock, do a voltmod of some sort (bios flash, pencil mod, etc), and that will give the card more stability PROVIDED THAT IT STAYS COOL. Voltmodding DRASTICALLY raises temps and you could destroy your card. Most people only voltmod when they have liquid cooling.

 

[Lexus UK]

I said i cannot overclock the card any more without making the card unstable. As the temps are low I feel the card could go quicker but I dont know what to try.

If a bios flash or voltmod would help, know of any guides which explain how to do this?

 

[Hyperlite]

i'm running at 410/836 with a 1.4 volt modd (1.3 is stock) via a bios mod. Using an Artic Cooling NV5, my temps never go above 60c load, and i'm sitting at 46c idle atm. doing the voltmod raised my idle and load temps about by 10c. i'm not sure what my mem chips are rated at, but where i have it now is the highest i can push either the core or mem before it throttles back. when that happens the core refuses to clock up to 3d speed.