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Escrow via johnk, overnight shipping insured ~ 32btc
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They sell for 3.5BTC new now... so Ill offer that much for 1
shipped, escrow via johnk
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Ill buy it @ 30btc, overnight shipped, johnk escrow
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i can confrim that dell123 is honest trader. im the one who he sold the other unit to on btc-e.
and who would trust your word...you have scammer tag rofl! |
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Will offer 30BTC shipped! & escrow via johnk
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Yeah, Ill offer 30btc each
whats the hosting cost?
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What value resistor would I piggyback onto R10 to target 1.30V, or 1.25V?
For 1.3V (1.278V under load) I use 47k. No problem with 400MHz and 0.98% HW, Rejected 0.38% For stability I suggest sold 2mm 2 wire from coil to the end of board. Top cooper layer (VDD_1.2) is too thin to carry such high currents. Look on the picture below https://www.dropbox.com/s/68f6k5tafw1i58f/20130825_025617-2.jpgIm running with 31k piggyback and that gives me 1.336v under load at the bottom chip. Be aware that for me at 460mhz I am 2x the wattage as a stock Avalon! At bare MINIMUM you need a 1200watt powersupply for a 4 module unit! I need to find out how to deal with 1600watt total at 460mhz!!! Guy's, I am wandering how you are able to get such higher rates? I am not hardware expert but according to my knowledge the TPS DC/DC converter can handle up to 20 Amps. At clocks higher that 400 maybe chip consumes 3-4A at 1.3V so 10 Chips *4A=40 Amps. Double the capacity that TPS DC/DC can handle. I would be more than happy if someone comments it Thanks According to the guys that have done the mentioned mods, thats a soft limit of the DC/DC converter. Meaning exactly what, I dont know =P ... I wonder if it has to do w/ hard limit of maximum POWER(watts) output as in maybe its max capable voltage @ 20amps is what its rated for. Which is a lot more than the voltage we put through it. |
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75btc.... psh ... Ill offer 50btc
Only have 50 BTC? I'll sell you a in hand BFL 60 GH/s single at that price  Sure, if you can get the single running reliably @ 120GH =) |
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75btc.... psh ... Ill offer 50btc
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Ill offer 5btc for the 2...
Are they 5GH units or 8GH?
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Ill update my offer to 28BTC, shipped, escrow via JohnK
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how many you have left, suggest updating your title...
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Ill offer 30BTC shipped, escrow through JohnK =)
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I have a batch #2 unit, currently set at 350 mhz and giving 82 gigahashes.
Is it possible to make it run even faster, just by managing the temperature, but without modifying the hardware?
What I mean is - can I manage to make it work on 400 mhz, just by cooling the room where it's standing?
You could at least try the wire mod for voltage stability across miner boards ... this may yeild some increase in mhz and maintain lower HW error rate. But, probably not to 400mhz. I would gather somewhere between 365-375mhz...maybe? Past that ya need to do resistor voltage mod. Is there a high-res photo or more detailed instructions on where to connect the wiring to stabilize voltage? I think SMILY plans on making a complete writeup soon as well for his mods. |
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I have a batch #2 unit, currently set at 350 mhz and giving 82 gigahashes.
Is it possible to make it run even faster, just by managing the temperature, but without modifying the hardware?
What I mean is - can I manage to make it work on 400 mhz, just by cooling the room where it's standing?
You could at least try the wire mod for voltage stability across miner boards ... this may yeild some increase in mhz and maintain lower HW error rate. But, probably not to 400mhz. I would gather somewhere between 365-375mhz...maybe? Past that ya need to do resistor voltage mod. |
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WTF is the point of these?! they already exist...
Why make another version?! It better have programmable VRM ... that would make it worth while rofl! otherwise WTF!?
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Im surprised it doesnt have a rectangle cutout in it sealed by cardboard where they were gonna put a pointless mini LCD display =P
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Ill up my offer to 27BTC shipped!
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