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5870 oc question

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September 7, 2010 8:08:39 PM

Hello
i just bought a xfx5870 and i was wondering what is a safe speed using cataylist without having to mess with voltage. i have a phenom 965 3.4 and play in 1080p thank you for any feed back.

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a b U Graphics card
a b K Overclocking
September 7, 2010 10:39:54 PM

Just keep upping the clock speeds until A) The temperatures have exceeded the acceptable range, B) You are getting artifacts while the GPU is under load (at which point change it back to the last stable configuration), or C) You're happy with the overclock.
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September 7, 2010 11:04:54 PM

And the CCC doesn't change voltages, only extra programs or BIOS modding will do that.
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September 8, 2010 12:42:11 AM

Ok thank you guys. yea i did the ccc oc'n but i saw no diffrence in the ffxiv benchmark test or the 3dmark06 test, 17700ish and about the same with maxed ccc. same results with the ffxiv benchmark still getting 3700ish on high. dont know anything about bios not sure if i wanna do all that stuff messing with voltage just thought after dropping $450 on a 5870 that i would be scoring higher. i did have a 460gtx but jumped up to a 5870 scored 1k more on the 1080p ffxiv bench but doesnt seem as good as some others with 955's and 965's unclocked, unless my o/s isnt utilizing that 4th gig of ddr3 which would make a big difference? any ideas? Thanks
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a b U Graphics card
a b K Overclocking
September 8, 2010 1:13:57 AM

cyprus1234 said:
Ok thank you guys. yea i did the ccc oc'n but i saw no diffrence in the ffxiv benchmark test or the 3dmark06 test, 17700ish and about the same with maxed ccc. same results with the ffxiv benchmark still getting 3700ish on high. dont know anything about bios not sure if i wanna do all that stuff messing with voltage just thought after dropping $450 on a 5870 that i would be scoring higher. i did have a 460gtx but jumped up to a 5870 scored 1k more on the 1080p ffxiv bench but doesnt seem as good as some others with 955's and 965's unclocked, unless my o/s isnt utilizing that 4th gig of ddr3 which would make a big difference? any ideas? Thanks


Your card should be factory clocked at 850Mhz core and 1200Mhz memory, try using Afterburner and give it 900Mhz core and leave the memory alone (for now).

http://event.msi.com/vga/afterburner/download.htm

Also create some sort of fan curve (highly recommended) to keep temps low and sound tolerable.

http://i683.photobucket.com/albums/vv199/OvrClkr/Afterb...

;) 

Later on you can keep raising the clocks in increments (5mhz at a time) till it freezes/artifacts, then back off a bit and you should be good. Don't let the GPU hit 80c, the fan curve should keep it at around 65/70c at the most. You should be able to get at least 900/1225 on stock voltage.
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September 8, 2010 1:21:17 AM

Ok well i did set it to 900mhz (60% fan use) while using ccc but no difference, does afterburner offer more?
Thanks
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a b U Graphics card
a b K Overclocking
September 8, 2010 1:24:18 AM

Forget about CCC, just make sure you have everything set to performance not quality. Make sure V-sync is also set to performance and you are done. Open Afterburner and raise the clocks from there, no need to touch the clocks via CCC, you also do not want to use both programs simultaneously (sliders) because you will end up crashing the system.

Did you read my post above? No need to touch the fan settings in CCC, use Afterburner..play with it for a while and if you hit a wall or have a question let us know.
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September 8, 2010 1:27:50 AM

Ok got ya no CCC i will download afterburner now and do 5mhz incremints
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September 8, 2010 1:43:07 AM

Best answer selected by cyprus1234.
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a b U Graphics card
a b K Overclocking
September 8, 2010 1:48:54 AM

This topic has been closed by OvrClkr
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