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Probably water cooling. For reference, I have 3 6990s on an open-air rig sitting directly below a large AC unit and it takes two Ultra Kaze fans blowing directly on the chips to keep them at 80 degrees Celsius. I don't think 4 cards would last very long in an enclosed case, personally, but they might do alright if you spread them out, give each one its own fan, and somehow turn the whole case into a veritable jet-intake without giving up that "regular computer" look.
Thing is, you probably won't be able to spread them out that much. PCI risers only give you about 6 inches, which sounds like a lot but really, in practice, isn't so much. Especially since you have to keep slack in them to keep from pulling them out of their slots, and since you can't twist them more than maybe 30 degrees at most without losing significant length.
P.S.
If your cards are anything like my 6990s, even if you manage to make the case look *normal* while incorporating awesome ventilation, the sound's going to give it away. And the heat. "Hey, why does your computer sound and feel like a hair dryer? You wouldn't happen to be mining, would you?"
Yeah. For stealth, water cooling all the way.
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I hereby declare that I have traded in my 100 chips order to ragingazn628 for the full original payment. I no longer have the rights to these 100 chips ordered in this thread.
ragingazn628, could I get 32 of those chips? That'd bring my total order to 512 chips. |
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As you can imagine, I'm having a hard time valuing it. I'm thinking 75BTC, possibly more...
Open an auction thread and start the bidding at 75 BTC. You should be able to get more than that pretty easily. |
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Well, one had to open an account at some unknown/tiny exchange (if necessary fund it via VouchX and exchange to BTC) and then buy some bonds. To me this is a different thing then just "accepting bitcoins".
+1 |
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If you'd like, I can poke around for quotes here and we can compare notes.
Sounds good. If we use a plant in Oregon, I'd be willing to pick them up and save us some shipping. It looks like BkkMiner might be selling parts+boards at $35 each for the K16 and $100 each for the K64. |
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What part of the US are you located in?
Portland, OR. |
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Fair enough. Right now I'm looking at sending 480 chips to a local assembly plant, so I might end up letting some other people send me their chips to get in on it as well. Not sure which PCB I'm going to use, though. Burnin's is attractive because 20 chips per board means I can chain more together before I have to add another controller. Bkkcoins' is attractive because it's open source, which means I feel I can trust it more and have my boards printed locally, which means I might get them sooner than I would when ordering from Burnin.
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Seriously, I was interested in this project when I would have seen any progress/updates on this. But the lack of activity in this thread and the failure to answer PMs for months made me believe that this project is either a non-starter or a scam.
+1 |
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You could see if there's a PCB assembly plant near you. I might also start taking PCBs and chips for assembly, though I have to admit I'm probably no more qualified for the job than most people. I'll see if I can get some quotes from the plants around where I live.
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Burnin just posted that he'll be opening up orders in the next week. Do we have any updates on the plans for US PCB development?
Raginazn says he's got something in the works. If that doesn't work out, though, I may look at producing Bkkcoins' PCBs here on the west coast. I'm also considering ordering plain PCBs from Burnin and having them assembled here once the chips arrive. (In that case I'd be taking a bet that the PCBs arrive faster than the chips, though.) |
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Watching. This sounds like an interesting project...
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Ragingazn, how's the PCB design coming?
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Tumak, just saw your reply. Thanks! I'll definitely take a look at those.
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Not only that, but this was the deal the WHOLE TIME... Trying to reneg halfway into the deal is bad form.
+1 |
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We should work together where possible so that the community supports developing the DIY avalon worldwide in local situations.
+1 |
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Not a bad idea. Thanks. We'll see how things play out. If bkkcoins can come up with a solid design before ragingazn does, I'll consider handling US assembly for zefir's group.
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Go ahead and keep my overpayment.
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Also, my apologies for fueling some of the drama a couple hours earlier. I was worried about the state of the group buy and wanted to make sure there was a backup distributor in case people started requesting refunds on account of ragingazn closing the thread. I never intended for it to turn into a mutiny or anything. I personally have no quarrel with ragingazn. I just wanted to make sure this thing went through, as I have significant percentage of my Bitcoin holdings riding on this, and the way people were talking was making me nervous.
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Can I assume that these will be shipped to us in the order payment was received?
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