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680 Overclocking (Calling all owners!) - Page 26

post #251 of 1059
Quote:
Originally Posted by NeoandGeo View Post

I can hit 1250 on my 7970, but it sounds like a train is passing right by my head. For acceptable temps/noise 1100-1150 is the limit on air.

That was the limit I hit as well. At normal fan speeds (and thus noise levels)/near-normal, without hugely bumped volts, 1250+ as people keep trying to say is *not* a normal OC for a 7970, which is *the exact thing I have said this entire time*.

Remember, the GTX 680 oc's we're seeing are at stock volts and oftentimes auto fan, while higher fan speeds are quiet still up to around 60-65% by the accounts I've heard so far (room acoustics and cases vary, of course, as well as personal sensitivity).
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post #252 of 1059
680 GTX SLI - Core @ 1147Mhz / 1200Mhz & Mem @ 6400Mhz
i7 920 @ 4.3 Ghz

Heaven DirectX 11 Max : 2285

375


3DMark 11 : P15600
3DMark Vantage : X34490 & P41551

376

376

Still tweaking...

I'm very impressed with how cool and quiet these 680s run!
post #253 of 1059
Crossposting this post I made from the review thread since it seems there is a lot of misconception here about how GPU Boost works and what the actual speed is that it goes to by default:


It may *say* stock boost of 1050 on nvidia's chart & gpu-z but the ACTUAL boost it goes to is 1100:

Proof from the link:
Stock Dirt 3 (Hardware Canucks) GTX-680-121.gif

The link with text saying the same thing: http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/52616-nvidia-geforce-gtx-680-2gb-review-5.html

When you set an offset of +150 above the default, you are actually going to 1250mhz as the cap. Every single review I've seen that has shown the clock speeds for stock shows the same thing, that the card will *by default, untouched* boost to 1100mhz.

Here's another link:
http://alienbabeltech.com/main/?p=28910&page=5
Quote:
With our GTX 680, we reached 1156MHz on the core and upped the memory +25Hz to 3025MHz. That 1156Mhz is +150MHz over Nvidia’s stock core clock and that does not count further overclocking of approximately +100MHz provided automatically by GPU Boost.

and another....
Anandtech: http://www.anandtech.com/show/5699/nvidia-geforce-gtx-680-review/4
Quote:
First and foremost, GPU Boost operates on the concept of steps, analogous to multipliers on a CPU. Our card has 9 steps, each 13MHz apart, ranging from 1006MHz to 1110MHz. And while it’s not clear whether every GTX 680 steps up in 13MHz increments, based on NVIDIA’s boost clock of 1058MHz this would appear to be the case, as that would be 4 steps over the base clock.
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post #254 of 1059
I dont know about you guys but i think these cards are crap for a modder.

Bios ...nope
cooling...it dont matter
Voltage...in your dreams

I had one of my cards on dice yesterday it help 00000% for clocking, then super charged the air down to 10c more of nothing,h70 mod and i got a whole lot a nothing.mad.gif


They suck for older benches big time...so happy i kept my 448 ti's two of those destroy this card in old guy benches

Here vantage dice by the intake to cool the air
10c idle 44c max i picked up 0% in clocks every other card i ever had picked up some with cold even cool running voltage starved cards.
680vantage40kgpu.jpg



Oh and if you think it matters much a way to keep set voltage more constaint is to use NVI for 1.17v
it will not back down if 132% is set with it if you did not check already voltage will go a tad higher if read with dmm.
Edited by cowie - 3/25/12 at 5:55am
post #255 of 1059
I disagree on the resale value of these cards being significantly lower in a month or two. For the record, I plan on selling these for a slight loss and getting a non-reference.

But these cards are crazy-powerful even without the overclocks that we're going to be getting on non-reference ones. The large majority of gamers don't even know what an overclock is, and when they see how amazing the card is, and that it has GPU Boost, they're going to love it even more. They aren't going to see any reason to buy a $150-more card that has a fancy cooler on it because they don't overclock manually at all. So just this stock, GPU Boost-enabled card alone will be extremely appealing to many people. I don't see any problem in selling these in a few months for at the very least, $400. I don't mind paying the $200 hit I'm going to take either, since I don't mind paying $200 to essentially "borrow" these for a few months, curbing my impatience until I can get the Classified or Lightning.

I'm going to enjoy these monsters with a slight overclock for now, and then get the non-reference overclocking pro in a few months thumb.gif
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post #256 of 1059
Damn, I would have thought that cold would help. When you mounted the H70 were you able to use the stock heatsink with it?
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post #257 of 1059
Quote:
Originally Posted by cowie View Post

I dont know about you guys but i think these cards are crap for a modder.

Had you physically volt-modded the card, or were you still using stock other than the cooling? Thanks for the post.
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post #258 of 1059
I'll be happy to compete with any of you that end up with a 680 Tri-SLI setup. We can compare my Tri-fire scores with your Tri-SLI scores biggrin.gif
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post #259 of 1059
Dont get me wrong i did not even try one game i was talking about 3dfm and not just 3d11.
its does not stand a chance against a cooled down 448 ti in older fm dx9 bench with latest w7 or xp disk drivers. redface.gif
Quote:
Originally Posted by BababooeyHTJ View Post

Damn, I would have thought that cold would help. When you mounted the H70 were you able to use the stock heatsink with it?
Yeah me too it always works.
i did not try to use the stock parts i took it off in one piece,vrm is cool to the touch but it only takes a few heatsinks and direct airflow to get the vrm cooled.
Quote:
Originally Posted by GoldenTiger View Post

Had you physically volt-modded the card, or were you still using stock other than the cooling? Thanks for the post.

That ss i posted was with just a 5x 5x piece of dry ice 3 inches thick on shop towels covering the stock heatsink intake for the fan.
I had a pot on the other but it cb on me at -22c and was wet after i got it back down but 0% increase while -0c -20c so i was miffed a tad,that card has the h70 on it now.

I dont want to deface my cards in anyway now but i know tin @kingpincooling has cb,vid mods and adding some parts they did not think necessary for the card that i may try later

I might just try shams hot wire mod since i have mb to do that on and will report back later if i get it done.
338

338
Edited by cowie - 3/25/12 at 8:29am
post #260 of 1059
I decided to leave mine @ +121 on the core and +327 on the memory, anything more and it seems that BF3 will randomly crash after an hour or so
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