The-Hunter

http://www.mountainmods.c...cension-cyo-p-493.html

Its that one you are saying, can  you plz link the case you are thinking of?

IF it is the one above, I would do 4 quads in sandwich or as swiftech calls it, QP, I dont know of anything else that removes more heat and keeps things silent than this, why you say, well, mostly just because you can, and well, if you want to OC and have 4 dual fermi cards.. you will probably need it....

And yes, you need two power supplies, one for mobo and one for GPUs if not you will pull more than 1500 out of the socket if you are Europe and either risk overheating your power line or blow up your power switch. There is no other way round this known to me at least.  

I believe if you are USA your max is 1300 W and that is err, juts about almost enough for dual CPU OC alone.. depending on mostly how much heat you can remove fast enough from these CPUs.

I did manage to run my CPU and down clock the GPUS at 4.8 GHz just for fun for a bit of testing for fun. It does not work thou on normal use, burn runs overheat the CPU as heat wont get removed fast enough (my ambient temperatur in summer time is hi) so, to sum it up, I can say that you need all the radiators you can fit on that case to do what you want depending on how hi a OC and how much heat the fermi cards will output. I am thinking each fermi GPU will do about 300-330 W range. On this I am not certain thou. We will have to wait until EVGA finds us some golden ones and does a hydrocopper of that GPU for my build.

GoofyR

I just remembered while looking at different pcu's for this board.  I seen some 5.25 slot power supplys for gpu's.  I cant remember who manufactured the units though.  So you could possible get away with one main pcu and a couple of these new bay power supplys.

The-Hunter

Skull Crusher

Do you think 4 285's or 2 295's would stay cooler without water cooling ty for you last post.

I would not recommend running either one of those combinations of that with no water cooling myself. You might get away with running the cpus on a non 4.5 ghz club  OC with a nice good huge heat sink with good effect and little noise produced, but aiming for the same on the VGA cards, if low noise is your objective, I would put my money on water cooling the evga cards first, and the cpus second, if I had to choose where to invest money into the system. 

Its simple, the fans and heat sinks on the cpus can be far larger than the stuff that can fit into a graphics card. I don't think 4 285s versus 2 295 will make much difference, the 4 285 will have a larger surface area so he fans can spin less than the 295s but there is more of them, so net it should be roughly the same. Just look at the cooler size of a cpu cooler on air versus the size of the cooler on a vga card on air. Then think of the heat output of 2 max clocked cpus at round 400w heat, versus, 2 295 cards at tdp at 300w each at max. The logic of what makes the most noise and heat is relatively simple to understand when you think of it this way.

Skull Crusher

The-Hunter

Skull Crusher

Do you think 4 285's or 2 295's would stay cooler without water cooling ty for you last post.

I would not recommend running either one of those combinations of that with no water cooling myself. You might get away with running the cpus on a non 4.5 ghz club  OC with a nice good huge heat sink with good effect and little noise produced, but aiming for the same on the VGA cards, if low noise is your objective, I would put my money on water cooling the evga cards first, and the cpus second, if I had to choose where to invest money into the system. 

Its simple, the fans and heat sinks on the cpus can be far larger than the stuff that can fit into a graphics card. I don't think 4 285s versus 2 295 will make much difference, the 4 285 will have a larger surface area so he fans can spin less than the 295s but there is more of them, so net it should be roughly the same. Just look at the cooler size of a cpu cooler on air versus the size of the cooler on a vga card on air. Then think of the heat output of 2 max clocked cpus at round 400w heat, versus, 2 295 cards at tdp at 300w each at max. The logic of what makes the most noise and heat is relatively simple to understand when you think of it this way.

I should have been more clear I will try and put a message under my signature if it works. I meant if I was doing no overclocking. I have no idea how much heat these thing produce. It is very hard to guess because people jump back and forth between overclocking and not. I will most likely be in a Mountain Mods Extended Ascension with a Unholy amount of fans. I can not say as of yet what type of CPU cooler I will use as the board will be cramped (funny with all that size). I will wait to see what you guys do. But as a GPU novice I do not know if they will stay cool enough to give them a long life without water. The line between Overclocking and Stock gets blurred when you hear peoples testimonials. I will not be overclocking anything as I will be using this for video editing and do not want to deal with the headaches.

Skull Crusher

If you had 2 x 1000w power supplies on one system and 1 x 1000 + 1 x 600w on another running identical setups would the first one cost more to run or is it only the power you use? Seems like the first would run quieter (with a temp. sensing fan) and have better expandability. Anyone feel free to point out a mistake in my thinking.

Skull Crusher

I am sure you have seen the UN Designs Mountain Mods Build. Just in case you have, not look it up. Sounds like you want a toned down case but you might be able to gleam some ideas. Almost anything could be cooled with his setup with possibly a few tweaks I would think. Like I said this is only for inspiration if you want a more standard case.


http://www.xtremesystems....howthread.php?t=212236

mick64

Found a couple more PSU's you may be interested in......

1600w  http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4558882&CatId=5115


450w Bay http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5681047&CatId=1078

http://www.fudzilla.com/content/view/17723/1/

Geforce GTX 480 to be as hot as GTX 285
Written by Fuad Abazovic
Thursday, 18 February 2010 10:16

Higher TDP, but similar noise

We got some word that Nvidia's upcoming Fermi-based Geforce GTX 480 single GPU card should be as hot as the GTX 285. These are still preliminary results, as Nvidia still has to send out the final cards with the final coolers, but this looks like slightly better result that the GTX 480 that we saw at CES 2010.


The TDP of the GTX 480 will end up higher than on GTX 285, but with the help of a good cooler the thermals should be very close.

The noise lever should also be very comparable and the card should not end up much noisier than GTX 285. We heard numerous times that GTX 480 will end up with different cooler than the one we saw at CES 2010 and that was showed to Nvidia's loyal press at Editor Days.

All in all, you won't burn your fingers on the GTX 480, but it won't be cold either.