GPU Question

[goobee]

Got a few 8800GTS GPUs folding. I suppose overclocking the shaders is the way to go on these guys? As hot as these guys are, I'm trying not to have to overclock the cores if at all possible.

Thanks.

 

[Drsignguy]

Yes, I too have a GTS and it gets warm. So, as you have stated, keep the core at stock levels and bump up the shaders. I have mine at 585/1550/975 and it stays around 77 - 83c with 75% fan.

 

[goobee]

Here's a screen shot of one of my GPUs. How does this compare to your results?

http://goobee.info/pics/gpuz.jpg

 

[Drsignguy]

Here is a Screenshot of what mine is set at. My PPD is around 4700-4800 +/-

 

[goobee]

Wow, the defaults on your card is so much higher than mine. Is it one of the factory overclocked cards?

 

[Markfw]

My fastest card (9800 GTX+) has a shader at over 2000, and still only gets 5800 ppd. Seems its not linear at all.

 

[geokilla]

Overclock just the shaders. Core and memory has speeds have little to no impact on folding performance.

If you didn't know alread, the new drivers, Forceware 180+ require little to no CPU overhead to feed the GPU, thus letting you run one SMP client on dual core machines, and two on quads.

 

[Markfw]

Originally posted by: geokilla
Overclock just the shaders. Core and memory has speeds have little to no impact on folding performance.

If you didn't know alread, the new drivers, Forceware 180+ require little to no CPU overhead to feed the GPU, thus letting you run one SMP client on dual core machines, and two on quads.

That only applies to Vista, correct ? I tried them on XP, and it was unstable, and no improvement on cpu usage.

 

[Drsignguy]

Originally posted by: Markfw900

Originally posted by: geokilla
Overclock just the shaders. Core and memory has speeds have little to no impact on folding performance.

If you didn't know alread, the new drivers, Forceware 180+ require little to no CPU overhead to feed the GPU, thus letting you run one SMP client on dual core machines, and two on quads.

That only applies to Vista, correct ? I tried them on XP, and it was unstable, and no improvement on cpu usage.

It works with XP as well. When at full load with the 180.xx drivers, it shows very little cpu %.


goobee, No it's not a factory OC. It works pretty well, I am pleased so far. 🙂

 

[geokilla]

Originally posted by: Drsignguy

Originally posted by: Markfw900

Originally posted by: geokilla
Overclock just the shaders. Core and memory has speeds have little to no impact on folding performance.

If you didn't know alread, the new drivers, Forceware 180+ require little to no CPU overhead to feed the GPU, thus letting you run one SMP client on dual core machines, and two on quads.

That only applies to Vista, correct ? I tried them on XP, and it was unstable, and no improvement on cpu usage.

It works with XP as well. When at full load with the 180.xx drivers, it shows very little cpu %.


goobee, No it's not a factory OC. It works pretty well, I am pleased so far. 🙂

As drsignguy said, it applies on XP and I believe Vista as well.

 

[Drsignguy]

Yes, it's great to see this as now it frees up the cpu % a lot on BOTH OS. Wish Ati could do the same. 🙂

 

[lightstar]

Originally posted by: geokilla
Overclock just the shaders. Core and memory has speeds have little to no impact on folding performance.

If you didn't know alread, the new drivers, Forceware 180+ require little to no CPU overhead to feed the GPU, thus letting you run one SMP client on dual core machines, and two on quads.

wow, this is good to know. i'll try it when i get home from work tonight

 

[goobee]

Yep, I have 180.60 installed on my Xeon box that's running 2 SMP and 1 GPU client. I have 3 8800GTSs, all three have different default speeds. One I think is a super clock card, I dunno. I bought all three used.

 

[Assimilator1]

Originally posted by: Drsignguy
Yes, it's great to see this as now it frees up the cpu % a lot on BOTH OS. Wish Ati could do the same. 🙂

Yea me too! 😉