Thanks CoinHoarder  |
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Yeah you should move this to the auctions subforum. Post editing is disabled in this subforum, preventing people from retracting their bids.
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I know ASIC are coming few years from now from legitimate microchip company such as Marvell Jmicron Infineon or similar known producer. Corpsefly Labs are long scam.
I bet you 50 BTC right here publicly that at least one of BFL/bASIC/Avalon/etc will ship ASICs before June 31, 2013. Let's find an escrow we can both trust. Ok? Edit: fixed year. |
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Just a note that updating Eloipool within the next week or so is critical to surviving the subsidy halving.
Previous code had 50 BTC hard-coded in the "blank" coinbase.
Shhh!  I predict at least some pools will have bugs and will continue to pay out as before the halving. |
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I also challenge MysteryMiner to put his money where his mouth is by betting against http://betsofbitco.in/item?id=665 (Full disclosure: I created this bet and put 50 BTC of my own money in it.) He claims he put money somewhere, without telling which bet and without showing proof. Betsofbitcoin MysteryMiner is my profile but I made bet already using other profile that I want to keep confidential. This says it all. MysteryMiner doesn't even believe his own claim that ASICs are a scam. So he refuses to make a public bet, and claims it is "confidential"  In a way, this re-assures me, as it shows you are an educated person who knows that ASICs are coming. |
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Yes I wasted 5 mins clicking through your posts what of it?  I said "they don't seem to ship in the US", hence expressing uncertainty, not a claim. Try again A few examples of the predictions I made and argued for: that pirateat40 would be a scammer, that the BFL Jalapeno would require 2 USB cables, that the HD 7000 series would be capable of 3.6 Mhash/J. I also challenge MysteryMiner to put his money where his mouth is by betting against http://betsofbitco.in/item?id=665 (Full disclosure: I created this bet and put 50 BTC of my own money in it.) He claims he put money somewhere, without telling which bet and without showing proof. |
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The Bitcoin ASIC is not here and will not be here for long time. Current ASIC preorders are fraud and classic confidence scam.
Probably I need to wait until everyone realizes that no ASIC is coming and then resurrect this thread.
You are wrong, and I added you to my signature. ASICs are coming. I have always ended up being correct in all the arguments/claims I have been involved on these forums. I will be right again this time. |
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Just sold the last 2 5970s. I now only have left for sale: mobo/CPU/RAM and PSUs.
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+1 to Panda, he paid in full for the mobo before buying |
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Thanks for the feedback here guys I just sold 7 more 5970s. Only 2 left! I have an interested buyer for the last 2 cards, but I haven't heard from him in the last 12h. |
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Panda, I typically used these mobos to run either 3 or 4 5970s. Without risers.
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Sold 4 more 5970s. Updated OP.
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I sold one more PSU. Updated OP. Okay, I found your email in the trash for some reason. Thanks.
Glad you found it. |
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Panda, I did ship yours 3 days ago. You did receive the tracking # I emailed you, right?
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This seems unnecessarily complex. The surface of the copper pipe exposed to the air is so small that your setup is probably LESS efficient than a fan pointing down to blow air directly on a tray filled with ice water. And this would be a lot simpler to "set up" and less expensive.  |
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Just sold one more 5970. Updated quantities available in OP. They are selling fast!!
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I confirm DiCE1904's transaction. I will ship today |
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Rule of Thumb - Desktop Publishing - About.com
desktoppub.about.com/od/glossary/g/Rule-Of-Thumb.htm
Definition: A rule of thumb is an easy-to-remember guideline that isn't necessarily a hard-and-fast rule or scientific formula but it's more than just a dumb guess.
I agree with this definition, and what I said is compatible. I said "in general" it is based on scientific logic, not "necessarily". And crazyates's suggestion is precisely nothing more than a "dumb guess". (Sorry crazyates, I sound harsh. Don't take it as a personal attack. I am just here to correct technical knowledge.) |
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Ok. Assuming 120W for the 54 Ghash/sec device, that's 450 Mhash/Joule at 90nm.
Therefore Tom's standard-cell ASIC should in theory scale to 450 / ((65**2)/(90**2)) = 863 Mhash/Joule at 65nm.
If Tom went further and made it full custom, he would need a mere extra 16% efficiency gain to match BFL's 1000 Mhash/Joule.
But I would assume that making it full custom would have a lot more potential than a +16% efficiency gain.
So it seems:
- (1) either Tom's power efficiency estimates are optimistic
- (2) or BFL's power efficiency estimates are pessimistic
- (3) or BFL's full custom design has not been that well optimized after all
- (4) or Tom's standard cell design is extremely well optimized for being standard cell tech
I would say (4) is very likely since he hired state-of-the-art ASIC design firms. Knowing he had a very well optimized implementation would also explain why he initially did not believe BFL's 1000 Mhash/s claim as he probably assumed they were using std cell tech, and 65nm std cell tech should only be capable of 863 Mhash/Joule.
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My rule of thumb: a PSU's continuous load usage should be the same percentage of max load as the PSU's peak efficiency.
If you've got a 1000W PSU that's only 80% efficient, then I'd only trust it to run at 80% of it's max load, or 800W.
If you've got a 1000W PSU that's 90% efficient, then I'd trust it to run at 90% of it's max load, or 900W.
You should not call this a "rule of thumb". A rule of thumb is in general based on a scientific reasoning or experimental validation. But here, you are just playing with numbers to make them "line up" in a way no more scientific than TV watchers who prefer the sound level to be set to an even number instead of an odd number. |
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