Putting this here too since it will be lost in the 144 pages burnin thread otherwise:
It makes more sense to keep buying H-boards from bitfurystrikesback (unless burnin can really get 80 GH/s out of these).
The cheapest option at Bitfurystrikesback is 6500€ for 400 GH/s
We offer 512 Gh/s for 5499€
Where is proof of this? Is that hash speed guaranteed? Do you include extra boards in the deal if the unit you deliver hashes at less than 512, like punin does?
edit: You don't offer that speed at your site, you offer 320 GH/s – 640 GH/s. Where is the guarantee that the unit hashes at 512 at least?
edit 2: If your unit actually hashes at only 320, the Bitfurystrikesback unit is _better_ than this deal. 320/400 = 0,8. 0,8 x 6500 = 5200.
edit 3: What is the warranty on these boards/units, and do we void the warranty if we overclock?
edit 4: Why the hell is that heatsink 10 euros extra on these boards? That probably is a mandatory item, and a basic heatsink costs what, 3 euros?