Guys, i smell an offer/auction of ~10k chips coming... that is when Avalon fixes the 1 batch mess up and sends them to unsuspecting Zefir  |
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So, you would be selling just the bare PCB or boards fully assembled with chips? (ie. chips I've bought from this group buy).
Would be curious about timeframe also. I.e. "1 week after chips delivery" or 2 weeks or 3... Based on your fab capacity.
I will be selling fully assembled boards, chips + heatsinks mounted and ready to go, to group-buy participants only. I expect there to be a 5 business day maximum lead time, but these numbers will not be solidified until parts sourcing has been taken care of. Thanks. Thats a sweet lead time imho. |
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340 mh/s per chip Don't tease us like that!  Do you have a rough total as to the number of chips/boards queued for production thus far? Has anything been mentioned about a different assembly completion timeframe from the new private developer? Separate from this group-buy, I have over 1000 boards that I will be producing in conjunction with this developer. Design should be finalized and in full-scale production in mid July, which is still before our Avalon chips will even arrive So, you would be selling just the bare PCB or boards fully assembled with chips? (ie. chips I've bought from this group buy). Would be curious about timeframe also. I.e. "1 week after chips delivery" or 2 weeks or 3... Based on your fab capacity. |
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Today (2013.06.19) 1 Avalon chip was delivered to me from zefir. It is sample chip from batch #1. Thank you, zefir!Shipping payment: OROBANK, 1JLzgdt3JhnSxQEgWv8Zd828M2eawGRuZA, 0.40 This is how my Avalon chip looks like: http://orobank.org/img/avalon.pngI was in first batch also, are these being distributed now? No these are sample chips for developers. |
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Bump. Still buying at 15uonc/1LTC, up to 1500uonc, thanks.
WTS 1000 μONC for 70 LTC or 1.48 BTC Withdrawing my offer. Have no more to sell for today. |
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Bump. Still buying at 15uonc/1LTC, up to 1500uonc, thanks.
WTS 1000 μONC for 70 LTC or 1.48 BTC Not too shabby for a turtle...  -tb- super sonic turtle. |
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Bump. Still buying at 15uonc/1LTC, up to 1500uonc, thanks.
WTS 1000 μONC for 70 LTC or 1.48 BTC |
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man in SW all you need for real part design is to make a plate part:
2 mm thick, 100x100. Mounting holes 90x90 , heat sink holes 62x55 all 4 mm DIA
That's all.
If you want to make rendered image this is different story
also, from main thread, keep in mind pcb is designed to be mounted on heatsink, and not the other way round. i.e. pcb cannot take the weight of the heatsink. Also use M3 screws and not M4 for mounting to account for expansion under heat, etc. So what's the purpose of the mounting holes, then? maybe if u use a light heatsink... 32W of heat does not need very thick heatsinks as most people are planing... |
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http://imgur.com/QyMdL2S (eyesore warning) Thats the limits of my artistic abilities... i am design challenged. If this idea has merit perhaps one of you could illustrate it better using some fancy 3D tool. Goal is easy maintenance and spacious layout. What im thinking... have blades of 4 K16 in a row. The entire blade is the heatsink with holes in appropriate places. This shouldnt be difficult since aluminium is extruded, and easy to get in whatever length needed. (Its sold in very very long bars and cut to spec). Mount the K16s onto the heatsink, So now you effectively have ~45cm long k64 with some mounting mechanism(not clearly illustrated) in the ends. Place 2 metal bars ~40 cm apart and mount blades vertically to it. provide fans between blades. The first picture is the full installation of blades on the rods. The next is the front side of the blade with the pcb facing you. The last is the back side (with heat sink finns). The smooth surface of the blade could either have M3 screw holes so the pcb can be mounted using normal M3 screw, OR it could have a thru hole where the PCB is mounted using nut + bolt. Just find a cabinet (or frame or box) or something half meter deep, and you can stuff loads of these into it. To go more fancy, make a backplane on on one end with connectors, and handles on the other end. A 3U rack case (or even normal size pc case) could easily fit 6 of these . = 6 X 4 X K16 = 384 chips. and remain be very spacious.
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Bump.
-Turtle's friendly neighbourhood bumping service.
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Questions:
1) Can you just flash xianfu's openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory.bin to the router? Will it work with the K16 (is it the same basic firmware for Icarus, Avalon and K16)?
No. You would need to build the image yourself with a newer version of cgminer which isint developed yet, since the current cgminer wont run klondike. 2) Would you need an extra power source for the K16?
Yes. K16 is estimated to need 36W of power at 12V. You need a 12V PSU. 3) I heard there's some USB issues with the TL-WR703N and that you need a USB hub. Does it matter what kind?
No idea. You can try without hub first... |
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bump #1
still have some μONC left.
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I'd say why not use a raspberry pi?
Its only slightly more expensive, and you get 512 MB RAM vs 32MB ...
Using tp-link would only make sense if ur concerned about saving $5 - 10 on equipment ull be spending 100s of $ on... OR if you need a router in general. with a pi you can put more things on it, etc.
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man in SW all you need for real part design is to make a plate part:
2 mm thick, 100x100. Mounting holes 90x90 , heat sink holes 62x55 all 4 mm DIA
That's all.
If you want to make rendered image this is different story
also, from main thread, keep in mind pcb is designed to be mounted on heatsink, and not the other way round. i.e. pcb cannot take the weight of the heatsink. Also use M3 screws and not M4 for mounting to account for expansion under heat, etc. |
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I am surprised to see so many push pull fan setups in a closed case. If the pull fan sucks out more air than the push fan pushes in, the air pressure will be low in the case and there will be less air molecules to pickup and transport the heat.
I expect a push only fan setup to be much better, there will be lots of air molecules to pick up the heat and the air has no way to go except out.
Maybe even forcing a high pressure in the case by limiting the outgoing openings of the case. For example a 12cm fan blowing towards a 8x8 cm opening with smooth transition. I would like to use 12cm, so the board is 1cm away from the housing, creating some airflow over the remaining electronics on top of the board too.
push-pull is good if you can't get enough airflow to keep the air cool enough across the case so that the components farthest from the push fans can still be cooled adequately. Interesting read here: http://martinsliquidlab.i4memory.com/Radiator-Fan-Orientation-And-Shroud-Testing-Review.htmlMy gut feeling was wrong. Push + pull is better than just push. And adding two shrouds to it makes it even better. Shrouds may not be needed. The center lane of the heatsink would not need much heat dissipation. Because of the design of K16, the heat is near corners of the boards, hence the outer portions of the heatsink will get hotter. So if the fan motor blocks some airflow in the center lane... then its a feature not a bug. |
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I am surprised to see so many push pull fan setups in a closed case. If the pull fan sucks out more air than the push fan pushes in, the air pressure will be low in the case and there will be less air molecules to pickup and transport the heat.
I expect a push only fan setup to be much better, there will be lots of air molecules to pick up the heat and the air has no way to go except out.
Maybe even forcing a high pressure in the case by limiting the outgoing openings of the case. For example a 12cm fan blowing towards a 8x8 cm opening with smooth transition. I would like to use 12cm, so the board is 1cm away from the housing, creating some airflow over the remaining electronics on top of the board too.
push-pull is good if you can't get enough airflow to keep the air cool enough across the case so that the components farthest from the push fans can still be cooled adequately. The push-only makes sense... Thats how most rack cases are designed also... How about push from both ends, and vent from top? would that cause bad circulation for lower boards? Imagine if there is an ATX PSU on the top back (like in a regular PC case), Thru the psu is the only way for air to get out... All other fans potentially RPM controlled based on temp.... Even for push-pull config, one of the pull fans could be removed... to provide space for cables, etc... |
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10 μONC per 1 ltc or 0.021 btc
Minimum lot 50 μONC.
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i may be interested to trade 2 for 1 FPGA single... Without any compensation for hashrates, etc...
But how would we do the escrow? Where are you located?
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