Selling 4 Hashbuster Micro 20+ GH/s boards with a small error.
In January 2014 I bought complete 5 boards but without the bitfury chips from Hashbuster.com. I also bought some Bitfury chip in BitcoinValet's groupbuy. Then I brought the boards with the chips to company which soldered the chips by hand on the board, it took them 1 hour per board. The company said they could not give a 100% guarantee soldering would perfect due to fact it's very very small and all. I accepted the "risk". I got one board working, I unlocked the Voltage lock, set it to 0.95V and it's now hashing at 24 to 25 GH/s and only draw 30 to 35W (with heatsink and cooler).
I can't get the other 4 boards hashing. They company checked the soldering again and fixed some minor solderings. I tested them again but no luck. The boards give either a red Led which means Power Bad or chips are not found error (from BFGMiner 3.9.0). I don't have the time to investigate the problem, so I am offering them to real miner-tweaker-experts.
Boards are new, Bitfury chips are new. Boards have only been powered for testing three times for max 15 seconds. No chips are burned or overheated.
I think somebody with knowledge of electronics can fix these boards and can have a nice 80 to 100(+)GH/s hashpower for a good price (or just have fun fixing these babies).
- 4x Hashbuster Micro board with 9 bitfury chips.
- Selling all 4 boards in one sale (boards are not sold seperately!)
- All 4 boards have an error ! they do not hash.
- No guarantee, no returning of the boards, sold as described.
SOLDI will provide Voltage unlocking code for these boards so if you have them fixed you can adjust voltage for more hashing power.
Standard is 0.83V, 0.95V to 1.05V is max, 1.05+V is madness
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Shipping the Netherlands: 0.02 BTC
Shipping Europe: 0.04 BTC
Shipping Wordwide: 0.06 BTC
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more pictures (17):
https://www.flickr.com/photos/113605308@N03/sets/72157643221425795If you have any questions, just ask them
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HBR1 is the Hashbuster Micro @ 0.95V about 24 GH/s. With overclocking you always will get some more HW errors.
(p.s. the other HBRs are Hashbuster Nano boards with expertimental overclocking, 20+ % HW errors, ooops
![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)
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One more note: I haven't contacted Hashbuster about the problem I got with the boards. He has other things on his mind right now due to situation in his country Ukraine. I don't feel like bothering him with this, there are more important things in life (I just have to accept my loss on this small project) . I hope Hashbuster will establish a safe new life outside his motherland.