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Normality of SLI - Page 5

post #41 of 55
5/11/09 at 7:42am
I've done a complete driver re-install...

I've been using EVGA Precision to tweak and Furmark to test. I've found both applications excellent!

I've taken both cards from stock 602/1107 to 706/1281. I'm happy with that for an OC.

Now downloading 3DMark Vantag for the first time, as this is meant to give a much more accurate result for modern GPU's than 3DMark06. Will report back later...
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post #42 of 55
5/11/09 at 7:51am
Quote:
Originally Posted by Toadus View Post
I've done a complete driver re-install...

I've been using EVGA Precision to tweak and Furmark to test. I've found both applications excellent!

I've taken both cards from stock 602/1107 to 706/1281. I'm happy with that for an OC.

Now downloading 3DMark Vantag for the first time, as this is meant to give a much more accurate result for modern GPU's than 3DMark06. Will report back later...
Nice overclock

See how much better these apps are?
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post #43 of 55
5/11/09 at 8:58am
Quote:
Originally Posted by c00lkatz View Post
OMG, obviously newer versions have changed that option then. This is the only version of Furmark I've used, so I didn't know that it didn't USED to support SLI without a forced profile, but NOW it does apparently. I'm looking straight at it, plain as day. Try downloading the new version and see for yourself.

EDIT: Look here! Proof!

Apparently SLI and Crossfire were enabled in version 1.6.0!
Well, there you go ... that's why I made the caveat about the version I was running in my post, I didn't think I'd updated it too recently, and I figured we were both smart guys, so

So this is great ... turns out we're both right. Its a beautiful thing.

And now we know *for sure* that it didn't use to support it, and now it does

I'm ahafta go grab the new version then!

I will say, though, they sure added SLI support late in the game ... I know my version of it's not more than 1 year old, and SLI has been around for like 5 years now ...

Oh, and to the OP ... don't be surprised if actual benchmarks crash at those clocks. Those are pretty high for a GTX280 to be stable with when you actually put the screws to it. I think of ATI and Furmark as good for finding out what the absolute max is that my card *may* be stable at. I almost always have to back down a bit from what they tell me. And keep an eye on the temps, cause SLI 280's can get real hot. Don't let either card break about 95C...

RT is great because it allows you to put temps on the onscreen display (also stuff like clocks, FPS and VRAM usage, if you so desire). That's my fave part of that program, I use it ALL the time.
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post #44 of 55
5/11/09 at 9:26am
OK, I've done a couple of runs on Vantage now. I had to down clock the settings slightly as it wasn't happy.

Results: http://service.futuremark.com/home.a...&resultType=19

The better of the two being P22411. I have no idea if this is good or bad. Comparing my 3DMark06 results with the masses, I'm guessing it's not that great.
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post #45 of 55
5/11/09 at 6:24pm
Quote:
Originally Posted by Toadus View Post
OK, I've done a couple of runs on Vantage now. I had to down clock the settings slightly as it wasn't happy.

Results: http://service.futuremark.com/home.a...&resultType=19

The better of the two being P22411. I have no idea if this is good or bad. Comparing my 3DMark06 results with the masses, I'm guessing it's not that great.
It's not bad. OC that CPU more and you will continue to see your score rise.
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post #46 of 55
5/12/09 at 12:40am
I can't OC it any more i'm afraid.
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post #47 of 55
5/12/09 at 12:52am
Thread Starter 
Quote:
Originally Posted by Toadus View Post
I can't OC it any more i'm afraid.
Afraid of overclocking the CPU or the video card? I would say overclock the CPU a bit more (if possible and doable with your mobo) to get the bottleneck out of the way. From what I understand, bottleneck diminish at around 3.4 or 3.6 (correct me if I am wrong). GTX 280 are powerful enough to power a lot of games, and since you have two, that's pretty much domination for the most part. Therefore I would say leave the cards at stock for now. For benchmarking, sure, why not. Clock those cards, but I don't really see the point of overclocking the cards for typical games, besides Crysis of course.
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post #48 of 55
5/12/09 at 1:00am
No, I really can't OC the CPU any more.

I'm hoping for some advice in the thread I've been posting in, but no joy yet. I hope it's something daft, but probably just my set up... If you want to lend me a hand, then please look at the last few pages in this HUGE thread:

http://www.overclock.net/intel-mothe...clock-190.html
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post #49 of 55
5/12/09 at 1:09am
Thread Starter 
Quote:
Originally Posted by Toadus View Post
No, I really can't OC the CPU any more.

I'm hoping for some advice in the thread I've been posting in, but no joy yet. I hope it's something daft, but probably just my set up... If you want to lend me a hand, then please look at the last few pages in this HUGE thread:

http://www.overclock.net/intel-mothe...clock-190.html
Probably hit a wall like me... I don't have that board, but I'll follow the thread, and if anything comes up that I had experience with, I'll be sure to state my opinions!
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post #50 of 55
5/12/09 at 1:56am
I've got a feeling it's to do with memory, but I can't say for certain yet.
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