No reason for it to be 3000W from 1" squared.  Even if you could do that the outer chip layers would act as an insulator and "cook" the inner chips.

You could simply have a chip-waterblock sandwhich.

waterblock
chip
waterblock
chip
waterblock
chip
waterblock
chip
waterblock

or maybe something more like a stacked grid array (4x4 chips under a waterblock and then stacked)

that would be awsome
get 10 HD6970 chips stacked together..
it could dump 3000 watts of heat in a square inch.

just have to figure out how to cool it 

Don't forget the botnets!  Since there is now malware out that can utilize a person's GPU to mine coins, I wouldn't be surprised if as much as 1/3 of all the TH/s is acquired through botnet activity.

I thought this only affected Windows users? Right now I'm running with 3 6970's and 1 6990 in the case, and I've already BIOS flashed the 6970's to run @ 300MHz memory speeds, and there's no problems with them.. only the 6990 is causing a problem with booting into Ubuntu.

I can't believe we're another 6 months into this experiment and people still don't understand that the auto-adjusting difficulty means that # of miners has absolutely nothing to do with the supply of bitcoins, thus nothing to do with the demand for bitcoins except in really indirect ways (a miner being perhaps more likely to increase demand for bitcoins by evangelizing about them or convincing a local retailer to accept them, etc)

Which only helps those who currently run a business. The average person can't deduct anything like that from their taxes.
And as soon as you're filing taxes for a business, H&R Block charges you $350, not $35.

Calculating ROI by speculating on future BTC value is fallacious.  If you want to speculate, you can just buy BTCs with dollars. The same dollars you need to buy hardware and electricity cost, so they compete.

Yeah IIRC, your internet connection has a lot to do with stales.  High latency = more stales, but I'm not sure why. 

That's weird, I definately searched first, but I might have messed up and done it under a sub category. 

Sorrys.  Can I delete my thread somehow?

Did you contact the Bitcoin Police?

Is that a Silverstone Raven 2 case?

I've had this issue with every 6XXX series card I've used in Linux (Ubuntu 10.10).

Using aticonfig I've never been able to set my XFX 1GB 6950s memory clocks less than 125mHz lower than the GPU clock.  In order to set memory clocks outside of the default ranges at all, I have to use AMDOverdrivectrl to set the default clocks for each power state, but even those don't 'stick' - as soon as I 'push' the card the memory clock ramps up to max.

The 6870 I picked up recently won't drop below 100mHz less the GPU clock.

It seems to be the same issue as Windows boxen, but at least there the manufacturers have specific utilities to get around it.  It also appears that it may be vendor/card version specific, as some people have had success underclocking mem on a handful of these cards in Linux.

With the BTC prices so low and my power usage so high lately, I'm resorting to bios flashing a lower memory clock and voltages on all of these cards this weekend.  Totally kills their use in Windows or for gaming (unless you flash them back), but will be worth it for mining - at this point I need to eek out every bit of efficiency I can in order to stay above water.