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post #871 of 2146
Quote:
Originally Posted by Paztak View Post
Hmm... Could that be the reason why my card keeps crashing (in fact it causes whole computer to crash) in Deus Ex Human revolution dialog scenes. Because my card was 925/2000 on 1.1 voltages and Crysis 2/BC2 worked perfectly earlier, so i thought this was stabel oc. But when i was playing Deus Ex it worked fine until longer dialog scene came up. Then whole computer crashed down, display went black and i quess that GTX 570 shut down. After pressing reset button i got that Asus bios message (or whatever its called) "overclockin failed".
I lowered my OC to 850 using 1.063 voltages and now there isn't any problems. I cant believe it's cpu what causes that. It should be stabel as a rock.

I have thermalright shaman cooler so temps are not the issue. Thats why it would be nice if i could push this card littlebit furter. Maybe that 850 is just all what this card can handle? I tried other oc's but those didnt work. Even 875 was too much for Deus Ex, computer crashed when dialog scene cameup...

Meh... There just wasn't enough voltage and obviously 925 with 1.1 voltage isn't stabel. So now my GTX 570 is 910/1820/2000 on voltage 1.1. I'v been gaming this evening and now it seems to be stabel. Highest temps what i got was 60'C so i can highly recommend Thermalright Shaman cooler if someone is looking for aftermark cooler. It's quiet, effective and easy to install.

I'm ready for Battlefield 3!
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post #872 of 2146
Hey guys. I can't even hit 800 clocks with stock voltage. Should I turn up the voltage and what should I set it to?
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post #873 of 2146
Quote:
Originally Posted by Deathpoint View Post
Hey guys. I can't even hit 800 clocks with stock voltage. Should I turn up the voltage and what should I set it to?
Keep turning the voltage and clocks up until temps start getting into the 80C's.
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post #874 of 2146
I have a twin frozr ii, I find stability at v1.1 900/2200. But for some reason, I can't push the card past 920/2200 so I have to downclock memory to 2000-2100.

so which is more important for real performance boost? Clock speeds or memory? Is there even any point in memory OC...
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post #875 of 2146
The core clock is the processor clock. It will determine how many polygons the video card can handle, and how fast the video card will process advanced effects like shaders.

The memory clock determines the memory bandwidth available between the GPU and the system. This will have an effect on how fast the GPU can be fed new frames & textures. The memory clock, along with the size of the memory bus, tells us the amount of memory bandwidth a graphics card has. The more memory bandwidth a card has, the better it can handle higher resolutions and high levels of AA and AF.

Both are needed for good performance, although individual games will sometimes depend on one more than the other.

-Tom's Hardware
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post #876 of 2146
Don't ddr5 also fix it's own errors and even if you hit say 2200 mhz you can lose performance and it will not show up as being unstable but as just a lost in performance?

Like you get nice boost hitting 2100mhz and at 2200 it's the same if not lower.

Hope that make sense.

After few hours of surfing this is the info I found. Ati does use ecc or close to it and nvidia don't.

First review say. Still not found one about nvidia cards.

The actual overclocking procedure involved increasing the GPU clock speed until errors occurred, and then backing it down until the errors stopped. Overclocking the GDDR5 memory is a bit more complicated. GDDR5 has error detection and correction technology which actually adjusts the clock-rate down in order to stop errors from happening. To overclock the memory on this video card, we simply turned the clock rate until performance diminished, and then backed it back off slowly until performance stabilized.

http://www.hardocp.com/article/2011/..._card_review/9

http://www.hardocp.com/article/2010/..._card_review/7

http://www.hardocp.com/article/2010/..._card_review/9

Nvidia

http://www.realworldtech.com/page.cf...WT081909212132

http://www.evga.com/forums/tm.aspx?m=386641&mpage=1
Edited by beetlespin - 8/30/11 at 5:29pm
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post #877 of 2146
uh oh. I hope not. Is this true?

edit: Well the Nvidia links say that the ECC isn't in our gaming cards, so, that's good I guess?
Edited by dph314 - 8/30/11 at 9:29pm
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post #878 of 2146
What causes artifacting? Memory clocks? My temp isn't even 70c.

I'm at:

1.075v
900 core
2000 memory

Would more voltage help this? I'm using a reference card so I'm kind of scared.

Thanks.
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post #879 of 2146
Quote:
Originally Posted by Deathpoint View Post
What causes artifacting? Memory clocks? My temp isn't even 70c.

I'm at:

1.075v
900 core
2000 memory

Would more voltage help this? I'm using a reference card so I'm kind of scared.

Thanks.
You're at 1.075v and temps don't hit 70C? Nice. What kind of card do you have? I think it's safe to say that with those temps, unless you're going by what the temp is in a very low-demand game, it's definately safe to go to 1.1v. Artifacts are caused by not enough voltage, yes. But some games are just sensitive and require 2 voltage bumps, which, from where you're at now, would be 1.1v. Not a guarentee though, some games are just really sensitive.
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post #880 of 2146
Thanks for your help in this thread dph313. I really appreciate it. I will try it.

Edit:

Artifacts went away at 1.1 volts and lasted a lot longer but in the end my overclock wasn't stable at 900 clocks. My temp hit 71c for only a split second a couple times throughout. Average was 69c at full load. I could use more fan speed if I needed it.

Is there anything I can do to get 900 clocks stable or is my card not good enough?

Thanks.
Edited by Deathpoint - 8/30/11 at 7:53pm
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