Yes, the pot enables you to set the voltage anywhere between ~0.65 to over 1V


Well.. I'm not sure how well this will work out.. I'm afraid people will run them too hot, ruin them, then cry RMA and demand replacement Also, I don't think people will be too happy if I remove all warranties and will potentially create very angry and bitter customers when the new card suddenly doesn't work (sometimes this happens even if we test them) and we don't replace it due to this new policy.. I need to think about this..

Chips are currently sold out. Even the next batch of chips is sold out. We already have the boards with chips on them. There's no debugging involved, just overheat issues. I'm thinking of maybe putting them up on the site with massive warning labels as there seems to be tons of interest

Can you send out a mailing to your old customs if the new hardware is available?

Im a big fan of shop-sales, preorder without fixed delivery date is risky. Or you allow reservations: it can get reservated now, but need to pay if hardware is available (latest in 24h after notification). If its unpaid after 24h the reservation is cleared and give to shop-sale. But the risk is you get all your hardware blocked, and no one will ay if its available.

Since days i have no access to support-chat http://ircnet.eversible.com/. Server seems to be down, but other told me they reach them. Has anyone idea whats the problem?

Ciao

Enrico

You should tell us the upside too. So if the new chips only overheat, then that's not interesting, but if they deliver better W/GH then I would say put them up there yestarday and take my "ROI non ROI" BTC!

RnR = I have made ROI but the consequent investment will not make ROI in itself, I just wan't to help the idea of digital currency with the free ride my early adoption created.

Chips = silicon = doesn't vary that much. We're still using the original mask-set. Our chips can provide efficiency as good as below 0.5J/GH or can be cranked up to over 3GH/chip and still suck less than 1J/GH.

The problem with current PCI style H-cards is that they are set at 0.85V and come without a heatsink. This combination will overheat out of the box and make inexperienced customers sad and/or angry. I'm still hesitating to put them up in the shop before we get the heatsinks..

Dave over at MBP sold the new hot H boards to customers.  Yes they get hot and many buyers have added their own heatsinks.  I bought 5 boards and I just have some nice 140mm PC fans blowing on them with virtually no issues.

They are a bit tricky to get hashing out of the box though.  I had to do a lot of card swapping to finally get things stable without adding a bunch of clunky heatsinks.  They run nice and fast too with no overclocking... about 33Gh/s.

Well.. that's another thing... We detected some weird anomaly with the boards. Say you set the pot to something and power up and measure like say 0V8 VDD. Then after the chips get programmed and start hashing the voltage goes up to 1V0!!?!?! This seems to happen especially when clock is set at 52. There's clearly some resonance there, but we don't have the necessary skill and equipment to figure out what exactly is going on and with what settings it occurs. All this mixture of weirdness and black magic makes me hesitate sending them out just yet.. I want to achieve solid performance before I ship. And preferably have the heatsinks made also.

As for the new H-boards (and M-boards?), could you please give us 24 hours advance notice before putting them up for sale? I'd hate to miss out if they all get bought in 15 minutes and I was offline. Or how about putting up a portion of the stock at a time, over a day or two, so everyone gets a good chance to buy?

You can ship to the US, right?

Why not sell boards to volunteers to figure out this black magic ?
One board reward to the one who solves it!
(BTW, do these new boards have the new PCI style connector to the M-board?)