HD 2900 XT too hot for liquid nitrogen :)

This is Kinda funny. I have never in my time as a bencher experienced anything this hot. Time to design a new pot :)

You can read about it here: http://www.nordichardware.com/news,6331.html

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Originally Posted by Kinc

This is Kinda funny. I have never in my time as a bencher experienced anything this hot. Time to design a new pot :)

You can read about it here: http://www.nordichardware.com/news,6331.html

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Maybe they should have used this :D

http://img515.imageshack.us/img515/7...r20tm72sk9.jpg

Amazing!!!!

That must weigh several tons lol.

Now thats just plain scary....One this is sure..it wont have a coldbug then. Because it cant get cold! :D (kidding)

wow !!! ..

btw with a good pot .. what kinda temp does the head of the pot get?? like -150C?? since Ln2 has temp of -210 to -196C

1.2 ghz core :woot:

anyone else think that GFX card manufacturers are reaching the whole Intel Prescott era and will be looking to bypass the whole MHz race in favour of multiple cores :D

that would be interesting to see............dual core quad SLI or XF cards :D

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Originally Posted by dinos22

anyone else think that GFX card manufacturers are reaching the whole Intel Prescott era and will be looking to bypass the whole MHz race in favour of multiple cores :D

that would be interesting to see............dual core quad SLI or XF cards :D

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They already made prescott look like an innocent mobile chip.

Also multiple cores? GPUs are basicly like multicores already. Unlike CPUs, GPUs have been parallel for ages. So you could almost say 1 pipe=1 core.

But yes, something like SLI/CF on a card could offset it some. Tho you use way more silicon and cost goes up in a rapid pace.

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Originally Posted by Shintai

They already made prescott look like an innocent mobile chip.

Also multiple cores? GPUs are basicly like multicores already. Unless CPUs, GPUs have been parallel for ages. So you could almost say 1 pipe=1 core.

But yes, something like SLI/CF on a card could offset it some. Tho you use way more silicon and cost goes up.

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they are i know but you know what i'm getting at ;)

1.2 Ghz wow!

finally a situation where liquid helium could prove useful :fact: .

maybe time to design something that cools more then the core of the card.

That's just insane.... 1.2Ghz and instant tropic temperatures in your room... :slobber:

I imagine benching with this thing would waste a LOT of liquid nitrogen. Meaning, you would need litres and litres of this stuff.

So what are we talking about, 350watts from the core alone? Current cascades are being tuned in the 250-300 watt range, guess it's time to bump up the requirements :p:

What are the temps like with stock cooler? Must be like 100'C load or something?

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The card would namely have had managed even higher clock frequencies if it wouldn't have been for the heat; it was too hot! As mentioned, we were using a solid copper container filled with liquid nitrogen with a boiling point of -196°C and yet this wasn't enough to cool the R600 beast. At idle the copper container's temperature rose from -90°C to around -70°C which made it impossible to push the frequencies any further.

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:eek:

I guess the flame decals should have gave us a sign.. ;)

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Originally Posted by syne_24

I guess the flame decals should have gave us a sign.. ;)

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maybe they arent decals but burn marks :)

I have a 8800GTX that I have been runing over 1GHz core on for nature in 3DMark 01 and that was nothing compared to this. I think I used more then 10 liters in 50 mins (not kidding) on one 2900X.

A better designed pot would help, but then it needs to be a lot better.

Hmmm perhaps the requirement for a constant feed system has finally occurred. Rather than pouring maybe a system where the LN2 is under some pressure and forced to flow through a block. That "proof of concept" that Chilly1 did springs to mind....http://www.xtremesystems.org/forums/...ad.php?t=42978

I bet you Legends cant wait for R650 @ 65nm..... :D

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Originally Posted by Afterburner

I bet you Legends cant wait for R650 @ 65nm..... :D

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I think that accounts for almost everyone, legend or not ;)

Crossfire and a Quad...who thinks 1K PSUs are overkill now???

:eek:

Me. We shouldn't need that kind of hardware ideally. Next gen of graphics will hopefully be a lot more efficient. Personally I wouldn't mind if performance of the next gen wasn't much of an improvement as long as we get some sensible power reqs. I know not everybody will agree with me there though.

is this what we call hot stuff? :p

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Originally Posted by Kinc

I have a 8800GTX that I have been runing over 1GHz core on for nature in 3DMark 01 and that was nothing compared to this. I think I used more then 10 liters in 50 mins (not kidding) on one 2900X.

A better designed pot would help, but then it needs to be a lot better.

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Looks like we need to put some real engineers on the job to create a new POT.

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Originally Posted by K404

Crossfire and a Quad...who thinks 1K PSUs are overkill now???

:eek:

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me. unless you're ln2 benching, that system won't really draw more than 600-700W top.

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Originally Posted by xlink

me. unless you're ln2 benching, that system won't really draw more than 600-700W top.

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ATI recommends 750W PSU for R600 CrossFire setup.
Just two GPUs consum ~ 440W w/o overclocking.

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Originally Posted by RAMMAN

finally a situation where liquid helium could prove useful :fact: .

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[OFF] take a look on this video, they made solid n2 :eek:

http://www.youtube.com/watch?v=egpMa...elated&search=

then its sn2 lol solid nitrogen 2 !!!! thats like below -210 C

lmao...

oh well. maybe next time eh... :slap:

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Originally Posted by theteamaqua

then its sn2 lol solid nitrogen 2 !!!! thats like below -210 C

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its 4 Kelvin, −269 °C ;)

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Originally Posted by MarlboroMan

[OFF] take a look on this video, they made solid n2 :eek:

http://www.youtube.com/watch?v=egpMa...elated&search=

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OMG in part 3 he pours liquid n2 on himself...look:eek:

http://www.youtube.com/watch?v=KLbqe...elated&search=

Liquid Helium time....

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Originally Posted by Cooper

ATI recommends 750W PSU for R600 CrossFire setup.
Just two GPUs consum ~ 440W w/o overclocking.

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explain to me where you're getting the other 300W or so? last time I checked it's all but impossible to max out the memory chipset and CPU simiultaneously. I've seen a few reviews where a largely stock single CF system drew ~ 400W. If you're stock voltage OCing you probably won't have issues with a high quality 600W PSU(PCP&C tends to underrate their units for example). Not that I'd personally restrain myself with one, I'd just buy according to my needs.

that is pretty crazy.

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Originally Posted by lawrywild

What are the temps like with stock cooler? Must be like 100'C load or something?

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stock they'Re 70 MAX, 60 average

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Originally Posted by xlink

explain to me where you're getting the other 300W or so? last time I checked it's all but impossible to max out the memory chipset and CPU simiultaneously. I've seen a few reviews where a largely stock single CF system drew ~ 400W. If you're stock voltage OCing you probably won't have issues with a high quality 600W PSU(PCP&C tends to underrate their units for example). Not that I'd personally restrain myself with one, I'd just buy according to my needs.

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R600 XFire, X6800, 2GB RAM and single 7200rpm HDD draws over 500W in Oblivion on high-res and so-so eye-candy. Change CPU to quad-core and put this rig on F@H and consumption will be enormous.

R600 is quite OK when running stock, it just accelerates like no other when you raise the voltage and frequencies :)

//Andreas