8800GTX oc barrier

del_boy

del_boy

del_boy

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Joined
7 Jul 2008
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3
Check out my speeds below, i cant push it past these without games crashing after about 20 mins, windows then tells me its a driver/hardware problem and then reboots, Ive tryed many drivers its always the same,
Is it a heat problem ? would a better cooler be the answer ? for the record i use nv system tools to oc and am using 175.19.
 
they're not bad..

have you clocked your shaders?

I've got my watercooled 8800GTX at 621/2106 and the shaders at 1620.

I can get the core a little higher but I have to drop the memory a lot so for you to be at 630 is pretty good.

Perhaps try dropping your core to 620 and see if you can push the memory over 2ghz?
 
my max stable OC is 648/1620/2000.
so i run 621/1566/1800 all the time.

that's an okay overclock, shaders can usually be overclocked higher, so try to use Rivatuner to get more out of it
 
8800GTXs tend to black screen or lockup if you go past the barrier of 621 on the core as the next jump is 648 on the core....

currently not a problem for me running 621/1620/1050.

try putting your core @621.
 
ViRuS2k said:
8800GTXs tend to black screen or lockup if you go past the barrier of 621 on the core as the next jump is 648 on the core....

currently not a problem for me running 621/1620/1050.

try putting your core @621.
Click to expand...

freaky, thats almost exactly my clock :) 621/1620/1053 ;)
 
Have my gtx (xfx) running at 675, 1550, 2000.

Is watercooled mind you and bios flashed the card to get the clocks. I think I can push my gpu to 700, and my shader domain higher too but I know my ram is limited to 200, starts to get flakey after that............

Am considering doing a volt mod to see what I can get out of it (as I plan to upgrade as soon as the 280gtx comes down to around 200 as I expect it soon will) at the extreme but I don't really want to physically alter any of the electronics.Nibitor is quite limited when it comes to modding voltages.
 
The xfx cards do tend to clock pretty well. My 2 did 675/1600/2210 pre volt mod, and 770/1940/ after GPU volt mod.

Anything below 660 core is distinctly average
 
does anyone know if its possible to volt mod these cards useing the pencil method
and is there software out there that read the cards voltages so i can compaire before and after as i dont have a multimeter lol
 
The voltage solder points are at different sides of the core, so no pencil mod.

You should really get a multimeter for these things. Forget using software for monitoring!
 
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