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[Official] AMD Radeon HD 6850/6870 Owners Thread - Page 374

post #3731 of 6939
[H]ard|OCP

GIGABYTE HD 6870 Super Overclock Video Card Review

LINK: http://hardocp.com/article/2011/05/2...o_card_review/

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Arrow I9
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post #3732 of 6939
Hi, Im new here,
I have 6870 HAWK,

Been using this card for a month now with the default clock and now I want to tweak this alittle bit.

I tried to use 1000/1200MHz with default voltage, but the kombustor, in which I test the stability, always crashing after 2 minutes or so,
with 1000/1250 at default voltage, the amd driver crash and recovered after a couple of minutes of test also.
both come at 75-76 centigrade under kombustor's extreme burnin.

I leave the voltage to the default because I dont really know about how to tweak them in case I make some irreversible mistake :-P)
So, any good value to overclock my card?
Thanks
post #3733 of 6939
Quote:
Originally Posted by paddy246 View Post
Hi, Im new here,
I have 6870 HAWK,

Been using this card for a month now with the default clock and now I want to tweak this alittle bit.

I tried to use 1000/1200MHz with default voltage, but the kombustor, in which I test the stability, always crashing after 2 minutes or so,
with 1000/1250 at default voltage, the amd driver crash and recovered after a couple of minutes of test also.
both come at 75-76 centigrade under kombustor's extreme burnin.

I leave the voltage to the default because I dont really know about how to tweak them in case I make some irreversible mistake :-P)
So, any good value to overclock my card?
Thanks
Try to raise the core voltage only (with the Msi's own AfterBurner) up to 1.22-1.25 volt and enjoy (for let's say 1000/1200).
The guys from guru3d managed to clock stable at 1044/1200 with 1.275v.

http://www.guru3d.com/article/msi-ra...hawk-review/22

Test the freq. with Occt gpu test for 10' and a lot of intensive games.
Good luck, post your results
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Arrow I9
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post #3734 of 6939
still playing COD Black Ops its more than 2hrs i think no problems so far
never got the chance to play BF2 will try it later though..

MSI Kombuster Fullscreen for 15 mins. 8x AA i dont really know much about kombustor
so i leave mostly @ stock


can't show Afterburner over Kombustor @ fullscreen so took screenies after


i wasn't satisfied with Kombustor's result so i ran Furmark 1.9.0 used everything except Dynamic Camera..


i did tried OCCT for 6 mins. since thats the lowest it would allow me to run & the temps
reached 67°c after just a few seconds it scared me lol..

i tried running it with error check & it showed lots of errors but it never crashed is that Ok?
    
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post #3735 of 6939
Quote:
Originally Posted by Calexan View Post
. . . cut . . .

i did tried OCCT for 6 mins. since thats the lowest it would allow me to run & the temps
reached 67°c after just a few seconds it scared me lol..

i tried running it with error check & it showed lots of errors but it never crashed is that Ok?
No, it's not ok, you're not stable. Try to lower the shader complexity to the default value (0) and mantain the error check option. With the proper voltage you won't see errors anymore (and if necessary lower the memory clock)
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Arrow I9
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post #3736 of 6939
Quote:
No, it's not ok, you're not stable. Try to lower the shader complexity to the default value (0) and mantain the error check option. With the proper voltage you won't see errors anymore (and if necessary lower the memory clock)
ok so i tried what you said on OCCT.. btw i never touched the shader complexity

900/1050 @ 1174v = no errors
1000/1250 @ 1225v result = no errors
1000/1250 @ 1174v result = 160+ errors lol

but im sticking with 1000/1250 @ 1174v as long as i doesn't give me
problems while gaming & if does ill just increase voltage to 1225v

gonna play BF2 now..
    
CPUMotherboardGraphicsRAM
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i5 2500K @ 4.6Ghz 1.336v Asrock Z68 Extreme3 Gen3 Sapphire 6870 1000/1250 @ 1225v 8Gb [2 x 4GB] G.Skill Ares DDR3 1866Mhz 
Hard DriveHard DriveOptical DriveCooling
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post #3737 of 6939
Well, i may not join this club at all. Today is my birthday and it seems as if i have gotten enough money to pick up at least a 6950 (Possibly a 6970, as i still havent gotten all of my B-Day Moeny yet)

EDIT: I just checked and it seems to me, at least, that a 6950 is nothing more than an unclocked6970 and with some OC its just as good....i may look more into this then.
Edited by Kevlo - 5/24/11 at 6:42am
post #3738 of 6939
Quote:
Today is my birthday
Happy Birthday

a 6950 is a good choice as long as you have enough money for it
& to unlock it to 6970 just sweetens the deal hehe..
    
CPUMotherboardGraphicsRAM
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CPUMotherboardGraphicsRAM
i5 2500K @ 4.6Ghz 1.336v Asrock Z68 Extreme3 Gen3 Sapphire 6870 1000/1250 @ 1225v 8Gb [2 x 4GB] G.Skill Ares DDR3 1866Mhz 
Hard DriveHard DriveOptical DriveCooling
Samsung 830 128Gb 5x Seagate Barracuda 500gb  Samsung DVDRW Megahalems Rev b. 
CoolingOSMonitorKeyboard
Zalman VF3000A Windows 7 Ultimate x64 21" HDTV Generic PnP Monitor A4tech X7 G800 
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Strike X 600w Cooler Master 690 Advanced Black & White A4tech X7 747H 
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post #3739 of 6939
Quote:
Originally Posted by Calexan View Post
Happy Birthday

a 6950 is a good choice as long as you have enough money for it
& to unlock it to 6970 just sweetens the deal hehe..
Thanks
Ya, i could try that, i'll probably just stick with OC for a while at first before i try to unlock it.

I was looking at this card specifically:
http://www.microcenter.com/single_pr...uct_id=0361074
post #3740 of 6939
anyone else get seriously low framerates on furmark at 1280 x 720 with 8 x msaa I average 7fps lol. I bumped up the voltage to 1.225v as per the suggestion by arrow0309 to maintain stability on my 1250mhz, 1000mhz clocks.
    
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