Overclocking my 5850
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GPU TOOL doesn't work for 5000 series.
Use AMD GPU Clock Tool v0.9.26.0 For HD 5850/5870
http://www.techpowerup.com/downloads...r_HD_5870.html
Originally Posted by SuperEmo Download GPUTool and run the Stability Test to check for artifacts. http://www.techpowerup.com/downloads...Preview_1.html |
Use AMD GPU Clock Tool v0.9.26.0 For HD 5850/5870
http://www.techpowerup.com/downloads...r_HD_5870.html
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Yeah I realize that to get it higher than 775/1125 I'll have to do that, but I just used MSI Afterburner and manually overclocked it to those speeds and ran the stability test in Furmark for like 5 minutes (that's as long as I'll run it). No artifacting and no freezes and the temps never exceeded 53C.
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Then I played Crysis for about 2 hours and no problems whatsoever. It ran beautifully at 1920x1080 everything on very high, except shaders, which I left on just "high". Averaged about 35-43 FPS and in a couple of rare instances it shot up to 61 FPS!
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I'll flash the bios soon, but I'm going to leave it at this modest overclock for now to break it in nicely.
Man I can't wait to crossfire these babies.
Originally Posted by i7bigrig You are going to have to flash your card |
Then I played Crysis for about 2 hours and no problems whatsoever. It ran beautifully at 1920x1080 everything on very high, except shaders, which I left on just "high". Averaged about 35-43 FPS and in a couple of rare instances it shot up to 61 FPS!
I'll flash the bios soon, but I'm going to leave it at this modest overclock for now to break it in nicely.
Man I can't wait to crossfire these babies.
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You need to flash a 5850 for clocks to be higher than 775?
Originally Posted by i7bigrig You are going to have to flash your card |
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all i did to get it to clock higher was edit the msiafterburner.cfg file, change EnableUnofficialOverclocking = 0 to EnableUnofficialOverclocking = 1.
worked for me.
Originally Posted by i7bigrig You are going to have to flash your card |
worked for me.
Quote:
You know 5xxx series does not display artifacts, so furmark is not the best way to test stability.
This is my method to test stability, and an example of how these cards work with their new algorithm:
IN Crysis Very High Setings 1080p no aa; I get with single 5770:
Stock: 19.5fps
1000/1400 1.22v 20fps
1000/1400 1.25v 21.4fps
1000/1400 1.26v 23.4fps ---->Stable with minimal voltage
1000/1400 1.35v 23.4fps
^ I hope that is self explanatory, but performance will increase with extra voltage if not stable I could run 10hrs of furmark at 1000/1400 @ 1.22v with no crashes, artifacts or problems, but as you can see it is not stable. As the 5xxx series auto corrects itself.
Run Crysis Very High on 3 loops at those settings.
Then increase voltage and run again, compare fps and find sweet spot.
Hope that makes sense and enjoy your new card!
Originally Posted by Pillz Here I've decided to overclock my 5850 to see what it will do. What programs do you guys use to scan for artifacts/stability. Don't really want to use Furmark, but I guess I will if I have to. I downloaded BOINC, is that okay? Any others? I can't get ATI Tool to open on Win7 x64. |
This is my method to test stability, and an example of how these cards work with their new algorithm:
IN Crysis Very High Setings 1080p no aa; I get with single 5770:
Stock: 19.5fps
1000/1400 1.22v 20fps
1000/1400 1.25v 21.4fps
1000/1400 1.26v 23.4fps ---->Stable with minimal voltage
1000/1400 1.35v 23.4fps
^ I hope that is self explanatory, but performance will increase with extra voltage if not stable I could run 10hrs of furmark at 1000/1400 @ 1.22v with no crashes, artifacts or problems, but as you can see it is not stable. As the 5xxx series auto corrects itself.
Run Crysis Very High on 3 loops at those settings.
Then increase voltage and run again, compare fps and find sweet spot.
Hope that makes sense and enjoy your new card!
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