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-   -   What's holding my GTX back (http://www.nvnews.net/vbulletin/showthread.php?t=93241)

methimpikehoses 06-13-07 11:40 PM

What's holding my GTX back
 
Can't get teh 8800GTX passed 625 core stable. Could this be a mobo or PSU problem, or just this particular GPU?

Madpistol 06-13-07 11:50 PM

Re: What's holding my GTX back
 
for stable, I'd say 630 core will be very close to the limit.

Benchable, you can push 660 core. If you have water, you can probably go even higher.

methimpikehoses 06-14-07 12:00 AM

Re: What's holding my GTX back
 
Quote:

Originally Posted by Madpistol
for stable, I'd say 630 core will be very close to the limit.

Benchable, you can push 660 core. If you have water, you can probably go even higher.

Yeah, I get pretty bad artifacts at 630, and sometimes BSOD.

Oh well, no need to push it for the benchmarks anyway.

Madpistol 06-14-07 12:01 AM

Re: What's holding my GTX back
 
What Power Supply are you using? That can also make a big difference.

cooling is also a big factor.

MUYA 06-14-07 12:03 AM

Re: What's holding my GTX back
 
Hmm I can hit 660MHz on core with my one...but with the help of rivatuner the fan is at 100% and case is not closed...

Madpistol 06-14-07 12:04 AM

Re: What's holding my GTX back
 
Quote:

Originally Posted by MUYA
Hmm I can hit 660MHz on core with my one...but case is not closed...

same. I have to have all 4 case fans running @ max rpm to achieve cooling needed to get it to run like that, plus 100% 8800 GTX fan.

methimpikehoses 06-14-07 12:18 AM

Re: What's holding my GTX back
 
PSU is a OCZ Gamestream 600W, which you would think was strong enough, but I also have a decent OC on my CPU @ 3.52...

Might be heat related... GPU is getting into the mid 70's on 3dmark06. Air cooling, fans on auto.

Madpistol 06-14-07 01:22 AM

Re: What's holding my GTX back
 
Unless your PSU is going bad, it's not that. So that leaves heat.

Perhaps you can increase airflow to your 8800?

breathemetal 06-14-07 11:35 AM

Re: What's holding my GTX back
 
My gtx is @ 630 but it is stock
I see no artifacts, but maybe its so stable because it came like that?
Hmm...

J-Mag 06-14-07 12:06 PM

Re: What's holding my GTX back
 
Tried upping your PCI-E freq?

methimpikehoses 06-14-07 05:22 PM

Re: What's holding my GTX back
 
Quote:

Originally Posted by J-Mag
Tried upping your PCI-E freq?

No, is that the one that defaults at 100 or is it the 333?

The airflow isn't great, its a Centurion 5 case, but I have a Tuniq in there blowing things around so I would be surprised if it's heat. I'm thinking my mobo is set up wrong, or my PSU is a POS.

J-Mag 06-14-07 05:33 PM

Re: What's holding my GTX back
 
Quote:

Originally Posted by methimpikehoses
No, is that the one that defaults at 100 or is it the 333?

Default is 100. I remember that the 7 series liked an increase frequency when running high end benches. I ran 113mhz for quite a while. I am not sure how the 8800's react to it though.


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