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GTX 400 Overclocking/Modding Thread - Page 20

post #191 of 926
Napalm on XS posted the pic of some mods..he reported a nice increase in FPS with additional capacitance added on the 12v..and seems that core voltage is related to higher mem clocks..unsure if it has anything to do with the vDDCI circuit of not on these Fermi's...but there is some sort of link between a higher GPUv and the set vDDCI ratio/voltage on these cards, affecting mem clocks and stability..

For you Fermi users..does GPU-Z report a vDDCI voltage? if so..what is it at stock, and can you monitor for me under load and post results..thanks.
post #192 of 926
Just flashed with grunion OCX480 bios and howw it works a lot better and my mems now overclock more before 900mem now 950 and going though the core is at 780 1.063v i dont like the temps at 800core and 1.087v more 10ºC need that wc setup
post #193 of 926
Vantage result with EVGA480bios from grunion
post #194 of 926
Quote:
Originally Posted by CL3P20 View Post
For you Fermi users..does GPU-Z report a vDDCI voltage? if so..what is it at stock, and can you monitor for me under load and post results..thanks.
Negative. At least for my card it does not.
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post #195 of 926
Just fired up my ASUS GTX470 10 mins ago and through MSI-AB beta 5 I'm currently running

801 Core (1.037V)
1602 Shader
1853 Mem

and after 20 mins of Kombuster, my temps were at 80C (75% fan)

I'm VERY pleased with this as there are 0 artifacts at this clock. I'll try to push it a little further later tonight.
    
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post #196 of 926
Quote:
Originally Posted by [CyGnus] View Post
Just flashed with grunion OCX480 bios and howw it works a lot better and my mems now overclock more before 900mem now 950 and going though the core is at 780 1.063v i dont like the temps at 800core and 1.087v more 10ºC need that wc setup
I noticed the same, higher mem clock with the bios.

Quote:
Originally Posted by SyncMaster753 View Post
Just fired up my ASUS GTX470 10 mins ago and through MSI-AB beta 5 I'm currently running

801 Core (1.037V)
1602 Shader
1853 Mem

and after 20 mins of Kombuster, my temps were at 80C (75% fan)

I'm VERY pleased with this as there are 0 artifacts at this clock. I'll try to push it a little further later tonight.
My Asus is a dandy as well, get the same speeds at 1.025v.
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post #197 of 926
well my temps in kombustor are very bad with 75% fan and only 750core at 1.063v it hits 94/95ºC.... my case is antec 300 with 74cfm fans.... (the TIM is MX-3) it seems a little high....
post #198 of 926
Quote:
Originally Posted by [CyGnus] View Post
well my temps in kombustor are very bad with 75% fan and only 750core at 1.063v it hits 94/95ºC.... my case is antec 300 with 74cfm fans.... (the TIM is MX-3) it seems a little high....
Maybe you applied the TIM wrong? With these coolers the conventional dot method doesn't work too well, you have to put a line of it across the heatpipes.
post #199 of 926
Quote:
Originally Posted by [CyGnus] View Post
well my temps in kombustor are very bad with 75% fan and only 750core at 1.063v it hits 94/95ºC.... my case is antec 300 with 74cfm fans.... (the TIM is MX-3) it seems a little high....

What's your room temp?

It really needs that much voltage for 750?
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post #200 of 926
my ambient temp is 32/34ºC i am testing less volts right now though i wanted my SLI first then the WC setup... I guess i go SLI even at stock SLI is better then 1 fully Oced card so no doubt here
well at 1.038v it seems ok 25min Kombustor at 89ºC. i rather play a little crysis to be sure still going for less vcore though.
Ok fully stable is 1.050v less it freezes or jumps out of the game i will have to manage with 750/1500/1850 for now until wc is ready another question is a 240mm rad enough for 2 gtx470 with EK acetal + nickel blocks?
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