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[Official] Nvidia GeForce GTX TITAN Owners' club - Page 496

post #4951 of 28134
Quote:
Originally Posted by Goofy Goober View Post

crappy termal coupound in one of my two Gigabyte Titan:



and these are the result:

i think that gpu 1 is too hot, it's 5 - 6° C hotter than gpu 2, and i've them linked in parallel mode.

with parallel link the gpus temp shoud be very similar between the two gpu, right?

Oh wow lol, the guy on the TIM dispenser machine must have fallen asleep on the dispense button. biggrin.gif

My two Titan's are the same temp in serial, there shouldn't be much difference no matter how you set them up unless you have a really small cooling loop/radiator. For my setup, the liquid temp rise is so small that I've decided for my 3-4 way final Titan config just to go serial.

pict0010t.jpg


The blocks don't help much with the overclock but do help the throttling for a decent score:

afterbios.jpg


Quote:
Originally Posted by Goofy Goober View Post

From what i know 3way Titans have no really good scaling at the moment, expecially in fullhd application. valley is a "light" benchmark, and i suppose that the third Titan of yr setup doesn't help much in this case.

Anyway, when i ran Valley my Titans were @ 1189mhz core and 1707mhz ram (6828mhz) with 1.2v, 3930K is @4.7ghz 1.32vcore

At 1080P resolution, after Two Titans it's pretty much CPU limited. Heck, even with just two Titan's there are many places during the run that GPU usage drops down from max even with a 5.2 GHz 3960X. I am trying to get Karlitos to spool up a 5760x1080 portion of his thread to better test 3+ GPU setups. Who in the world is going to have 3-4 top of the line GPU's and only run a single 1080P screen? redface.gif
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post #4952 of 28134
Quote:
Originally Posted by pauly94 View Post

What! I get 27 idle and 38 load with an ek block and many radiators. What's your secret!?

He lives in an igloo.



As for my post.. I have created an even more unholy abomination, the 2nd titan I picked up at Microcenter has an asic of 71% and I am absolutely in love with this card.



tl;dr naennon 1.2125 with a stepdown added (and mostly ignored because of Vista... rage) voltage in between for desktop.

1202 mhz core pegged in heaven, 600+ mhz on the memory. This is the card I will throw my EK block and backplate on, wahoo!
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post #4953 of 28134
Quote:
Originally Posted by PatrickCrowely View Post

Quote:
Originally Posted by Goofy Goober View Post

mmm, i'm thinking that series is better than parallel...

It's usually warm in my home. My wife has low iron, so we tend to keep it around 75 no matter what season & thanks..

I agree with parallel. Cool water in one end, hot out the other (Or warm / warmer). When I was running triple SLI, the first card was running much warmer than the last. After switching to parallel, they were only a couple of degrees different.
post #4954 of 28134
Quote:
Originally Posted by Compaddict View Post

I agree with parallel. Cool water in one end, hot out the other (Or warm / warmer). When I was running triple SLI, the first card was running much warmer than the last. After switching to parallel, they were only a couple of degrees different.

I have 1 titan, should I run in parallel or serial!?!?!

lulz.
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post #4955 of 28134
Quote:
Originally Posted by Avonosac View Post

Quote:
Originally Posted by Compaddict View Post

I agree with parallel. Cool water in one end, hot out the other (Or warm / warmer). When I was running triple SLI, the first card was running much warmer than the last. After switching to parallel, they were only a couple of degrees different.

I have 1 titan, should I run in parallel or serial!?!?!

lulz.

You probably want to run that in Mono series. tongue.gif
post #4956 of 28134
Quote:
Originally Posted by Compaddict View Post

I agree with parallel. Cool water in one end, hot out the other (Or warm / warmer). When I was running triple SLI, the first card was running much warmer than the last. After switching to parallel, they were only a couple of degrees different.

If the liquid temp was rising that much that quickly, the loop was pretty undersized in the cooling/dissipation area. Here in this video you can see my 4x 680 setup running in serial with all temps about the same. Parallel is pretty useless if your loop is sized appropriately. (BTW GPU#4 is actually at the end of the loop running the "coolest" when it should be the "warmest", I just chocked it up to a reporting error with the temp sensor).

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post #4957 of 28134
I'm getting much better cooling performance now in series than I did with my 7970's in parallel for what its worth. Btw, water helped my Valley scores for sure by eliminating throttle. Just need to get that Naennon BIOS installed for a bit more voltage...

post #4958 of 28134
Quote:
Originally Posted by CallsignVega View Post

Quote:
Originally Posted by Compaddict View Post

I agree with parallel. Cool water in one end, hot out the other (Or warm / warmer). When I was running triple SLI, the first card was running much warmer than the last. After switching to parallel, they were only a couple of degrees different.

If the liquid temp was rising that much that quickly, the loop was pretty undersized in the cooling/dissipation area. Here in this video you can see my 4x 680 setup running in serial with all temps about the same. Parallel is pretty useless if your loop is sized appropriately. (BTW GPU#4 is actually at the end of the loop running the "coolest" when it should be the "warmest", I just chocked it up to a reporting error with the temp sensor).


That's strange because I had a 8-10c difference with my loop in series and only a 3-4c difference after switching over to parallel. It just seemed to me that the heat kept building from one block to the next in series. Anyway, that was my experience with it ...
post #4959 of 28134
Quote:
Originally Posted by Majin SSJ Eric View Post

I'm getting much better cooling performance now in series than I did with my 7970's in parallel for what its worth. Btw, water helped my Valley scores for sure by eliminating throttle. Just need to get that Naennon BIOS installed for a bit more voltage...


As long as you stay under 140 FPS all will be good. I heard Titan's blow up when they reach that. biggrin.gif
Quote:
Originally Posted by Compaddict View Post

That's strange because I had a 8-10c difference with my loop in series and only a 3-4c difference after switching over to parallel. It just seemed to me that the heat kept building from one block to the next in series. Anyway, that was my experience with it ...

Hm, how was your pressure/flow rate? Maybe that had something to do with it. headscratch.gif
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post #4960 of 28134
Quote:
Originally Posted by Majin SSJ Eric View Post

Finally got around to testing 3dmark11 for my upcoming 7970/Titan shootout and HOLY CRAP! wheee.gif

SLI Titan (+80MHz / +500MHz):


CF 7970 (1225MHz / 1754MHz):


Even with that crazy GPU score the Titans were throttling all over the place so I can't wait to try out the non-throttling BIOS and see what a constant 1163MHz will do! This is just a small sample of what is to come in my complete W/C 7970 vs Titan review so stay tuned!

I have roughly the same set up as you but with a 3930 instead of yours 3960 and I scored about 2,000 points higher than you did...however my cards don't throttle. It is pretty much a straight line other than when it is loading the next scene in the tests. So perhaps, that is causing it. My cards are at +140 core/+150 on memory which my core is a bit higher, but your memory is way higher than mine.
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