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^nvm...
"Uniform price auction: “All winning bidders pay a per unit price equal to the lowest winning bid (the lowest bid out of the buyers who actually received one or more units of the commodity) - regardless of their actual bid.”- quoted from wiki. "
so the payment for my winning 5.00BTC bid IS actually 4.75BTC
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Will send BTC this afternoon (loading paper wallet now) and email info.
however - is it fair that some winning bids are 4.75 and others are 5.00? My impression was that in a situation like that, the winning bids should be all considered 4.75?
(if not, maybe i just havent been in enough auctions!)
How soon do the products ship and by what method? I would be quite impressed if delivery occurs sometime next week.
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not a fair auction. those newbie come in and gave the highest bids? with BTC at $600 a piece, 4 x 600 = $2400 for 180gh/s, don't make cents
i dont know what you are arguing? You dont want to pay 4.75BTC or more, then this is not an auction for you. PS: anyone still bidding 4.5 BTC or less is obviously stupid, since the bid list in posted only a few entires back and clearly shows that the minimum bid to be considered is now 4.75BTC or 5BTC |
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so the 200TH mine is now close to 250TH, and punin is talking about the next batch already - where is the updates from dave and the MBP team?
I have 2.25BTC in store credit that ive heard nothing about, other than that it *presumably* exists as a result of the hosting of the august starter kit. I would like to use it for some more H-boards but theres been no updates...
ps: am i the only one who would feel a little bitter if the H-boards went back into stock for more than $500? I know that the BTC price is up, but the production cost should be down, and weve been left in the cold for several big difficulty jumps...
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Actually, I'd like some comments from you...
- Would you like a USB miner or are you happy with standalone RasPi controlled unit?
- Do you feel modular design is important, or would you prefer a nice tidy box?
- What about form factor: free or rack?
- What dB level are you comfortable with?
- Internal custom PSU or ATX?
PI - no reason for USB other then troubleshooting made easy. if USB, people would simply run it to a PI BOTH - modular is great, but a tidy 300GH box would be beautiful too and may be easy to run airflow through FREE - but if following above suggestion, a rackable premade box would be nice MINIMAL - I am happy adding my own fans, and a silent or quiet miner is nice CUSTOM - a 'custom' 12V PSU is obviously most cost-effective I like to picture 2 products coming from you: 1) system similar to the V2, modular and free-standing nd the most cost effective without psu included 2) system similar to the asicminer cube - standalone system with housing, heatsinks,fans,and PSU capable of 200-400GH that can be racked or stacked. i would pay a *small* premium for the simplicity and good design that could come with this option |
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i tried this myself with the same hubs, but could only support 4 miners. adding a 5th created errors and knocked 1 or 2 out of action, not sure why (backfeed to/from the usb cord maybe?)
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ebay? you might be able to get a few dollars each from people dumb enough to expect magical bitcoins to pour forth from the shiny underside  |
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just got told by 1 english taobao agent that these are out of stock, days after i placed my order *rage*
the second agent i used to purchase through says there is some delay expected *further rage*
i would love to have some of these, but right now it seems they cannot be found for a reasonable price (reasonable < $500)
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So they are Bitgarden. You should change the topic.
These are not Bitgarden boards or chips please look at photos and compare also the ship and specs are diffrent The description refers to bitgarden multiple times. "Bit garden to provide maintenance is as follows" look at this:  the layout is slightly arranged, but its clearly the same design just a different revision. still, 130nm doesnt match the stated specs VERDICT: not worth the ~2BTC pricetag (1.7-2.1BTC depending what exchange you price using) considering that it does not include a PSU, uses 130nm technology, and will only mine about 1.2-1.5BTC in its lifetime (not considering power costs). $700 would be a more realistic pricetag |
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Speaking to my supplier in China today and he showed me this new product he received from Fried Cat factory.
Not much info other than it runs 130nm chip(Same old crap)
40Gh/s per blade overclock to 48Gh/s
Come in blocks of 5 or mills as he said so total stock speed 200Gh/s or overclocked 240Gh/s
Power per 5 blades is 500w
that makes no sense. gen1/2 blades were 32 chips and ran at about 10-15GH the asicminer cube is 80 chips and runs 30-38GH ie: 1 chip = 0.47GH overclocked. these cards show 32 chips each as far as i can tell. that should mean less than 15GH per card, or 50-75GH per bundle. also, in prior models, 1GH = ~7w these are either a 65nm design (ie: 3-4x the speed of 130nm at 1/4 the W/GH) or a sham, unless im missing something. in theory, a 65nm could allow for ~1.3GH/chip = 41.6GH and 1GH = ~2w means about 500w for 225GH |
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just a heads up: the taobao seller of cubes went out of stock AFTER i ordered, and cancelled my transaction. shoddy business and glad i used creditcard
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my understanding is that you dont need usb connection. just connect power and ethernet, then configure everything via the webUI address
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they are not good deals. at least 30% higher prices than what would be worthwhile/profitable |
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this is not custom hardware, it belongs in the sales forums
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whens the next price drop, and some more gen2 units or open source designs coming? 8BTC/500 would be a much better price IMO that would actually encourage use
I agree, the difficulty of miining grows everyday so prices must adapted, otherwise will not be able to sell much of these machines. Who will buy expired mining machines?? in the past month, avalon has been fairly good at dropping prices the day of/after difficulty rise. with the recent jump, and 12BTC/500 being excessive, a drop would be nice. |
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 1 AIfDSo 56 2.777 2.558 194 0 0 0 242 [0:0] 1 12 12 12 12 13 13 12 12 12 12 12 12 12 12 12 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2 AIfDSo 55 2.477 2.494 173 1 0 0 236 [0:1] 37 11 11 11 11 11 10 10 11 11 11 11 11 11 10 11 11 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0
3 AIfDSo 54 2.334 2.452 163 3 0 0 232 [0:2] 38 11 11 11 11 11 10 10 10 10 10 10 9 10 10 9 10 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1
4 AIfDSo 56 2.620 2.336 183 1 0 0 221 [0:3] 2 12 11 11 11 11 11 11 11 11 12 11 12 12 12 12 12 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0
5 AIfDSo 54 2.520 2.632 176 12 0 0 249 [0:4] 1 10 11 11 12 11 11 9 12 12 11 11 11 11 12 11 10 1 0 0 0 1 1 3 0 0 1 1 1 1 0 1 1
6 AIfDSo 54 2.362 2.706 165 14 0 0 256 [0:5] 5 9 10 11 11 10 11 11 11 10 10 11 11 10 10 9 10 2 1 1 1 2 0 0 0 1 1 0 0 1 1 2 1
7 AIfDSo 55 2.033 2.759 142 26 0 0 261 [0:6] 36 8 9 9 8 8 8 9 10 10 8 10 9 10 9 11 6 2 1 1 2 2 2 1 1 1 3 1 2 1 2 0 4 speed down
8 AIfDSo 54 2.849 2.706 199 1 0 0 256 [0:7] 2 12 12 12 12 12 12 12 13 13 13 13 12 13 13 13 12 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0
9 AIfDSo 56 2.377 2.399 166 0 0 0 227 [0:8] 4 10 11 11 11 11 11 11 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
10 AIfDSo 56 2.448 2.399 171 0 0 0 227 [0:9] 6 10 10 10 11 11 11 11 11 11 11 11 11 11 11 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
11 AIfDSo 54 2.462 2.357 172 0 0 0 223 [0:A] 5 11 11 11 11 11 11 11 11 11 11 10 10 10 10 11 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 speed up
12 AIfDSo 54 2.248 2.378 157 0 0 0 225 [0:B] 26 10 10 10 10 10 10 10 10 10 10 10 10 10 9 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
13 AIfDSo 56 2.419 2.537 169 2 0 0 240 [0:C] 3 11 11 11 11 11 11 11 10 10 10 9 10 11 10 11 11 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0
14 AIfDSo 56 2.591 2.431 181 2 0 0 230 [0:D] 0 12 12 11 11 11 11 11 10 11 10 11 12 12 12 12 12 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0
15 AIfDSo 54 1.890 2.960 132 102 0 0 280 [0:E] 7 11 9 10 9 9 9 10 7 6 10 9 8 8 4 5 8 4 6 5 6 6 6 5 8 8 4 5 6 6 10 10 7
speed:824 noncerate[GH/s]:36.407 (2.427/chip) hashrate[GH/s]:38.104 good:2543 errors:164 spi-errors:0 miso-errors:0 jobs:375 (record[GH/s]:37.037)
0: 824 36.407 38.104 2543 164 0 0 looks good! Push it to 0.94V and see what happens. IME, when the chips are between 53-55 tuning at higher voltage you get the best hashrate. ps: how is the temperature in the capacitor clusters? in the second revision they were taken out of the deisgn since they often were creating a lot of heat relative to the chips, and with little or no benefit |
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Assuming the fans are both orientated in identical directions, eg --> and --> then the overall flow will be very slightly improved. I disagree with the comment above that it is actually reducing it: you are creating suction on one end not in fact restricting flow in any way, it is actually enhancing flow through the mid point of the tube.
What you are missing is that the fan blades of the second fan are actually causing a huge restriction in that configuration. Your example of a push/pull configuration in a box/tower is creating more internal turbulence than a single fan, and you are probably getting more complete air movement *within* the box, but if the box is otherwise sealed, you certainly aren't moving any more air in or out of the box due to having a second fan placed in the exhaust port. In fact you are moving much less out of it due to the fan being there and causing a restriction. If you want to increase CFM with multiple fans, then you would have to provide an individual matched intake and exhaust port for *each* fan. Always have matched ports for each fan or expect to pay significant penalties in the form of CFM. the reason for my setup is that the exhaust fan was accidentally attached to the housing in a pull direction, rather than a push as i would have preferred (and im too lazy to spend 20min fixing it the other way lol). The fan on the left (push) is actually at about a 30 degree angle so that not only does it direct the entering airflow onto the back of the board and its heatsinks, but there is a gap available in the opening so that if the fans run different speeds, some airflow can enter/escape there to minimise any issues with mismatched CFM. putting my hand by it indicates that there is no noticed flow/scution at the gap so the CFM of the 2 fans must be very similar. in either case, im able to push the card for almost all its potential - theres maybe 1-2GH more i could squeeze if my living room wasnt 22 degrees (C) and was just a bit cooler - but not a big deal IMO |
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how tall are the heatsinks? Ive been using 4 35x35x6mm heatsinks without issue, and at a cost closer to ~$7 per board
IMO, you only need to focus the heatsinks on the thermal vias. The 35x35mm size is perfect for covering 4 chips without covering too much of the unheated areas of the PCB. Also, the thermal vias for the regulator are VERY important to cool. Copper would be the ideal for just that component, aluminum for the rest.
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whens the next price drop, and some more gen2 units or open source designs coming? 8BTC/500 would be a much better price IMO that would actually encourage use
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