Incorrect. As stated above, I am not mining anything now, and I am almost done selling off my GPUs and big power supplies. 2 nice motherboards left.
Selling GPUs? Everyone else mining bitcoins sold theirs 2 year ago. Shhhh! I have 70 USB Block Erupters that he may want to buy.  pfffffft i have been trying to buy some of em, but it seems no one wants to even send me a offer. |
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im interested some u2's but at a fair price and escrow only
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what are you looking for?
I have:
gridseed pods
gridseed blade
hex16a2
antminer u1's
tons of bare s1 blades (20+)
hashfast yoli/ pepper mining habanero
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so i finally got around to soldering 2 boards into one. i took off the 1st and 31st chip. so in total there is 61 chips. when i go to set freq all chips seems to report back. it hashes 80ghs-90ghs for a little and then slowly drops, it shoots alot of hw errors. im thinking its a timing/clock issue.
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got mine hashing at 330 watts at ~420 gh/s average with the fans and water pump on the same psu.
Yes very nice, what do you have the voltage and Mhz set at? 500Mhz and .75v in the config.... cgminer shows .72v |
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got mine hashing at 330 watts at ~420 gh/s average with the fans and water pump on the same psu.
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Allright, i thought i didn't need to add the --bmsc-options 115200:25
i was using --bmsc-options 115200:55 on my windows machine tho. isn't 25 too low ?
Anyway thanks a lot guys, you're the best ^_^
I forgot, my blades pencil undervolted. Try different numbers, look back in the thread. With my settings it is working perfect. And append what ./cgminer -n returns. Check cables, must be very good fixed into blades, led should be blinking when cgminer starting. I do not connect gnd pin, only RX/TX and it works perfect for many many days. Mine are undervolt to 0.85-0.83 (not more, not less). Running steady at 49.2 - 49.3. with very few HW under windows. Thanks for all the info. i will try with :25 option just to see. 25 MS looks fine that is great, you can be satisfied you cannot get more from one blade than 50GHs imo max i have seen was 65ghs but it was brief. i believe we need heat sinks to get the most out of them. I may have some boards up for sale when I get the ones I ordered. I got a HashFast Yoli evo/habanero that a guy couldn't figure it out. But i may keep them and sell the yoli/hab. |
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Did you try just connect RX(one board)-TX(second) to chain?
Yep, not working  yes i did that and it didnt work. im currently trying to get some desolder braid to try my idea. the last and first chip are off. |
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Yes I just bought s1 boards from him and they will be here Friday.
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UK is probably not economical enough to ship to Canada. But thanks for your reply.
sobe-it, sending you a PM.
pm back at ya, deal pending. |
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I have a blade and 6 pods, what would you offer? I have all original packaging and usb cords. I have a pcie cord to power 6 miners. All 6 pods or 4 pods and the dual blade.
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Sent ya a pm, never got back to me.
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careful with the first chip, he is the only who has quartz and clocks all other chips. I got a short circuit between the Rx Tx when i connect the board without turning off the power supply)). The board conducts heat well -soldering with hot air was difficult yes i know, i have 2 boards that dont set clock so im thinking the first chip or quartz shorted because the boards have correct voltage. hence why im trying this, the test points after the first chip lead to the second so its kind of like a bypass but the first chip has to be pulled or there may be issues and the last one has no test points so the test points before the last chip will work. |
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update - fixed the half hashing board by scratching off the pcb mask and tinning the copper and linking 2 strings of chips with wire. pics soon!
Kudos! I await the photos..... updated. its crude but it works. since i saved this board i might try my chip theory. |
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update - fixed the half hashing board by scratching off the pcb mask and tinning the copper and linking 2 strings of chips with wire. pics soon! also it looks like we may be able to link 2 boards (or more) by desoldering the first and last chip on alternate boards. the last chip has no pin outs to another chip and has a resistor tied to pin 37 (respond input). so technically we tie chip 31 on the first board to chip 2 on the second board and it should simulate 1 board with more chips on single mode.  |
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