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post #91 of 926
Basically, you strive for the highest clocks you can get with the least voltage you can get away with. Go for the fastest you can get while temps are reasonable to you. I don't run OC Scanner/Kombustor more than 3 minutes at a time. That is enough to test the Core/shaders. Crysis benchmark looped 10+ times is better at testing memory than Kombustor.

My 470 with the .91 VID is actually a terrible OCer even though you would think it would be better. I have to pump it to 1.0v only to get 750/1500. My .95 VID card will hit 785/1570 with only .962 volts. I think it could hit 850 with 1.025v. I bet a bencher would want that card. LOL
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post #92 of 926
Quote:
Originally Posted by JKDC View Post
Basically, you strive for the highest clocks you can get with the least voltage you can get away with. Go for the fastest you can get while temps are reasonable to you. I don't run OC Scanner/Kombustor more than 3 minutes at a time. That is enough to test the Core/shaders. Crysis benchmark looped 10+ times is better at testing memory than Kombustor.

My 470 with the .91 VID is actually a terrible OCer even though you would think it would be better. I have to pump it to 1.0v only to get 750/1500. My .95 VID card will hit 785/1570 with only .962 volts. I think it could hit 850 with 1.025v. I bet a bencher would want that card. LOL

Well, I'd like to increase clock rates some, but the higher priority for me is lower temps. I'm not certain that I will actually be able to reduce temps significantly by reducing voltage, but I've read that somebody was able to reduce core temp something like 5C or more while also managing to increase clock rates. They did this by lowering voltage below the factory setting. I understand that this is not the usual approach of trying to achieve the highest possible speed.

Is anybody else's 480 hitting 100C on a run with OC Scanner or Furmark? Oddly, the fan on mine never goes beyond 92%. This is with the stock auto fan profile.
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post #93 of 926
In other words, should I just try stepping down voltage in small increments, repeating the OC Scanner stress test and watching for artifacts until some start to show up? If so, I'll do this and monitor temps - I'd expect that I'll find a point where temps no longer decrease significantly (if they do at all).
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post #94 of 926
anyone up for a cap job yet..?
post #95 of 926
I've not had too much time to play yet.. I'd never used vantage.. but to show good measure. This is watercooled.

Stock single 480 GTX

P19053 3Dmarks.




480 GTX (850 Core / 1700 Shader / 2200 Memory Max temp 63C's IDle 43..)

P22179 3Dmarks.


Chart for the temps during.. I also have a i7 920 in the loop..




P.S. I hate fM already once again.. Funk I pay for something and they have 12 links per inch to make me pay more..
Edited by Easty - 4/19/10 at 8:40pm
    
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post #96 of 926
Been tinkering with my 470 a bit seeing what I can get. Ended up locking up Heaven benchmark with 800 MHz GPU Clock and 1000 MHz Memory Clock

Ran a few loops of the demo @ 775/975 and got about 22% performance increase over stock settings.

Stock:
FPS: 57.2
Scores: 1441
Min FPS: 24.5
Max FPS: 128.6

OC:
FPS: 70.2
Scores: 1769
Min FPS: 28.5
Max FPS: 160.8

Settings
Render: direct3d11
Mode: 1280x1024 fullscreen
Shaders: high
Textures: high
Filter: trilinear
Anisotropy: 4x
Occlusion: enabled
Refraction: enabled
Volumetric: enabled
Replication: disabled
Tessellation: normal

Same exact settings on both benchmarks. Load temp never got above 75C, fan was almost maxed out at 96%
Edited by MegaTherion - 4/19/10 at 10:15pm
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post #97 of 926
just finished cleaning the ridiculous amount of tim the manufacturer plastered all over my gtx 480, and replaced it with a better coating of ocz freeze. there was so much on mine it was literally spewing out the sides. i haven't had a lot of time to test to see how much difference it makes, but results will be coming.
post #98 of 926
Quote:
Originally Posted by psi_guy View Post
just finished cleaning the ridiculous amount of tim the manufacturer plastered all over my gtx 480, and replaced it with a better coating of ocz freeze. there was so much on mine it was literally spewing out the sides. i haven't had a lot of time to test to see how much difference it makes, but results will be coming.
I'm waiting eagerly I need to do that to my 470 with some good ol' AS5 I've had laying around. Did you do the X pattern method?
post #99 of 926
Quote:
Originally Posted by EfemaN View Post
I'm waiting eagerly I need to do that to my 470 with some good ol' AS5 I've had laying around. Did you do the X pattern method?
this is the guide i followed for the tim replacement: http://www.evga.com/forums/tm.aspx?h...mpage=1#310187.

the only thing i did regarding an x-pattern was when i was tightening down the four heat-sink spring screws after i applied the fresh tim. i applied more of a spread like the guide showed.

here are some pics of my own to show what i did:

heat-sink before (notice all the excess tim on the sides)


gpu before (again, the tim on the side)


heat-sink and gpu clean


gpu clean


heat-sink clean


ocz freeze tim


the tim spread i used (note that it looks thicker than it really is, took a lot of spreading to cover this large of a chip)


sorry some of the pics are blurry, i used my cell phone to make it easier while i was working on this.
Edited by psi_guy - 4/20/10 at 2:06am
post #100 of 926
Good stuff! Clean job too. I think I'll have to do that tomorrow afternoon. Get crackin' on those temps, I'm curious. Mine's been running pretty darn hot, I'm hoping to make a dent
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