Best possible rack mounted rig?

[tamas]

Hello,

I am looking to build the best possible rig for a rack mounted server, cost is secondary.

What I've been looking at is this:

Video card: GIGABYTE GV-R699D5-4GD-B Radeon HD 6990 or similar
Rack case: http://www.plinkusa.net/products/4220-6.jpg
Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16813130274

And the rest as needed (quality 1200W PSU, an SSD and 2GB RAM).

My first question is, is this feasible? Can I put these components together in a rack in some datacenter and have it running a mining operation all the time?

Or is there some better way of using a 4U or 6U space for mining?

My other concern is heat. Sandwitching 3 video cards that run full load all the time will probably generate intense amounts of heat - should I be worried, or will the case with the 6 fans take care of this properly? I'd hate to have the middle card burn out after a couple of days or weeks.

My last question, is a 1200W PSU (or 1350W) enough for these 3 cards?

Thanks for any replies!

[Genrobo]

Antec Truepower Quattro, a nice 1200w PSU.
Can't go wrong with awesome.
Just make sure you never get those power cache cables mixed up.
They're deadly important.
It should do just fine.

As long as you keep your wire management tidy, and keep your airflow good, you shouldn't run into any issues.

There are scripts floating around that can tone your machine down if the temps get too high, you might want to look into those.

[tamas]

Thanks for the reply!

I also found this http://www.thermaltakeusa.com/Product.aspx?C=1266&ID=1985#Tab0

It looks pretty neat and also powerful.

[Genrobo]

If you like PSU's made by ChannelWell, that thermaltake is fine.
Personally, I don't trust them, they're usually overpriced pieces of junk with high failure rates after about a year or so.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817194092
Now that thing, that thing gets golden reviews all around.

[tamas]

One more thing, what's the best OS to mine? Does it matter at all?

I am comfortable with Linux, so I'd run Debian on it. Is the linux version capable of same speed as other versions?

Thanks!

[Freakin]

One more thing, what's the best OS to mine? Does it matter at all?

I am comfortable with Linux, so I'd run Debian on it. Is the linux version capable of same speed as other versions?

Thanks!

Linux is considered more efficient for mining than windows, and also obviates the need for dummy plugs on additional GPUs