vanycon
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In Rarity I trust!
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June 29, 2013, 08:13:33 AM |
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Aaand we have a brand new pornostar: bitburner XX :'D
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Aeron 1.250.000 CryptoBonusMiles Giveaway
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Bicknellski
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June 29, 2013, 08:45:51 AM |
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AMAZEBALLS!!!!!!!!!!!!!!
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culexevilman
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Merit: 1000
Bitcoin is too valuable to be used as a currency
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June 29, 2013, 08:46:09 AM |
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Awesome man, keep it up...!
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dudeofthestick
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June 29, 2013, 08:47:51 AM |
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Lovely! What a great job burnin!
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SebastianJu
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Merit: 1083
Legendary Escrow Service - Tip Jar in Profile
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June 29, 2013, 11:01:03 AM |
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Great update burnin! The holes are copper plated and conduct heat to the backside of the board where the heatsink will be placed. I am just wondering if it would be better to have no solder mask directly under the ASIC chips heatsink side of board.
But i dont see any copper at the heatsink side of the pcb. How should the heat be transported to the heatsink? Is the thermal compound thought to fill in the holes, and find the way to the copper and find contact to the heatsink this way? I thought it would be better to have as much metal as possible transport the way from the chip to the heatsink and having a good contact with the heatsink. Im not a tech guy so i wonder... I am fairly sure that most of the back side is copper ground but it is covered with solder mask. If you were to scratch the back with something sharp you would see the copper. Ok. So after all the chips are soldered you have to take away the solder mask so that the heatsink can get in contact with the copper?
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Please ALWAYS contact me through bitcointalk pm before sending someone coins.
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Schrankwand
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June 29, 2013, 11:18:41 AM |
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Btw Burnin: Great photo Op. Most people fuck up product placement pics, these are great.
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WynX
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June 29, 2013, 11:33:55 AM |
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Mean pick&place machine indeed: http://youtu.be/S8qkaTsr2_o?t=8sSo production is gonna be done on the Cobra? Impressive 01005 size...
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Foofighter
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June 29, 2013, 05:20:50 PM |
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impressive working speed!
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ex official Canaan Distributor (Cryptouniverse)
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bezzeb
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June 29, 2013, 05:50:06 PM |
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Ok. So after all the chips are soldered you have to take away the solder mask so that the heatsink can get in contact with the copper?
Judging from the earlier photo of the backside (new meaning to sexy backsides!) and what I know of thermal vias + surface mount components: I'd say he's made sure that all through hole components are away from the Avalon chips and signal traces are on internal layers which means the entire bottom plane can just be sandwiched against a heat sink with perhaps some thermal tape or paste using the 6 provisioned fixing holes. Clever, simple and reliable, and there's so much surface area that i don't think the solder mask will interfere enough to matter. Regardless, I cant wait until he takes my money so i can get me some.... For those interested in learning more about this (now fairly standard) technique, some links for edjamucation: http://www.electronicproducts.com/Thermal_Management/Heat_Sinks_and_Thermal_Materials/PCB-cooling_techniques_and_strategies_for_IC_packages.aspxhttp://www.electronics-cooling.com/2004/08/thermal-vias-a-packaging-engineers-best-friend/And Burnin, your photos plus the wicked video of that cobra P&P are sooo much better than porn... Great stuff....
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sprint347
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June 30, 2013, 01:54:03 PM |
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burnin the XX model is looking great, is the X version coming along?
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Schrankwand
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June 30, 2013, 02:10:28 PM |
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burnin the XX model is looking great, is the X version coming along?
My personal guess is that he will use the same PCBs but only put 10 chips. Controller will then try to run both lines, fail and only run one stack of chips. That would cut development costs and he would get cheaper PCBs.
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FullFathom5
Newbie
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June 30, 2013, 02:58:43 PM |
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Hopefully the power requirements for 450MHz clocking is being considered for both forms of the board? burnin the XX model is looking great, is the X version coming along?
My personal guess is that he will use the same PCBs but only put 10 chips. Controller will then try to run both lines, fail and only run one stack of chips. That would cut development costs and he would get cheaper PCBs.
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dan99
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June 30, 2013, 03:17:30 PM |
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Hopefully the power requirements for 450MHz clocking is being considered for both forms of the board? burnin the XX model is looking great, is the X version coming along?
My personal guess is that he will use the same PCBs but only put 10 chips. Controller will then try to run both lines, fail and only run one stack of chips. That would cut development costs and he would get cheaper PCBs. Ya we need 450MH/S per Chip O/C
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Toolhead
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June 30, 2013, 06:04:52 PM Last edit: June 30, 2013, 09:29:34 PM by Toolhead |
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ANN: BitBurner water cooling solution coming soon! Made by german cooling experts: http://www.anfi-tec.de
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dani
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July 01, 2013, 12:28:39 AM |
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They look pretty expensive to me. Any price range?
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Hai
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burnin (OP)
Sr. Member
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ALTCOM Ab9upXvD7ChnJxDRZgMmwNNEf1ftCGWrsE
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July 01, 2013, 03:07:52 AM |
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Just a quick status update: Bringing a prototype like that takes its time, thank you all for your patience. I verified most of the functions now, and there were some changes that will find their way into the next revision Hit some problems with the quarz clocking the micro, it would not always start to resonate, so I changed it to an Oscillator. Power supplies - all working as expected ASIC Upstream - working, stable ASIC downstream - unstable, investigating USB Connection - working core voltage adjustment - working CAN-BUS - in development Temperature/Voltage sensing - in development I had it hashing for a bit but the return interface for the nonce is not working stable at the moment. (about 10% HW errors) I know whats causing the issues, have to change a part to get rid of them. (in the mail for Tuesday) Power consumption at 5.1Ghash - ~36WattsNo that's not the Production heatsink:
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Min€r
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July 01, 2013, 03:43:37 AM |
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Thats just awesome - thanks Burnin for the update!
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Dunkelheit667
Legendary
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Activity: 1045
Merit: 1157
no degradation
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July 01, 2013, 04:04:37 AM |
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Finally, we can go to bed (speechless) again. Thank you burnin!
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"And the machine keeps pushing time through the cogs, like paste into strings into paste again, and only the machine keeps using time to make time to make time. And when the machine stops, time is an illusion that we created free will." - an unnamed Hybrid
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Sukki
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July 01, 2013, 05:56:08 AM |
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Finally, we can go to bed (speechless) again. Thank you burnin! Me too, really awesome job Can´t wait for them
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