Topic: [GROUP BUY WORLDWIDE]BTMine v1 Miner 200GH/s BTC 2.4 - page 3. (Read 97258 times)

How about HW rate?
I`m runing with @stock PSU`s, at 1500 , ~4.1% hwrate.

FWIW I've been running at 1550 no problem - regular room temp, no extra fans or fan tweaking.  Weeks at that rate now, no glitches.

Nice I just powered down and powered back up and the problem was fixed. What PSU's are you using?

Maybe you need better psus.

These miners really like cold   mine are happy and stable at 1500 OC also HW rate stays low
Very good.

What were the problems people were having with OVER CLOCKING? I tried it with 2 750watt at 1500 and the miner is not hashing. Any suggestions?

Anyone know where I can buy a replacement FPGA controller board ?

how do i setup solo mining with this thing?

SELLING FAULTY BTMINE SPARE AND REPAIRS, NO RESERVE, 3 DAY AUCTION, LINK BELOW

https://bitcointalksearch.org/topic/m.5285691

These miners really like cold   mine are happy and stable at 1500 OC also HW rate stays low
Very good.

after i received my avalons from BTMine and discovered a couple of dead modules, i msg'd them on skype and also sent a PM here regarding my not working modules and sending a replacement for those - no answer at all.
they just don't care.
wish i bought some antminers instead of this mediocre shit.

my friendly advice: DO NOT BUY FROM THEM EVER!

Do I need to change anything for stratum? I noticed it says "no" under stratum in my cgminer status

If anyone interested i´m selling a full working unit hashing 210G for 1,5BTC shipping from Europe

I got parts for repair from DHL yesterday. Now was the stuff very good packed :-)

I wish I could, paid BTC.

Demand a partial refund of at least 1k each. Mine wasn't as bad and I got 1k back. If I were you I'd demand 1200+ each

Do it through PayPal. Open a dispute and escalate right to a claim. Or vice versa

Well finally got my BTMine's on 2/15 that I ordered on 1/9.  Apparently they forgot about them on HK and then went on CNY.  Awesome for me.

Bought two units, opened them up to find them destroyed inside.  Average of 8 caps broken off per unit, and one had a backplane with EVERY SINGLE pin bent.



All of the module power units were cut and sticking out the side of the case:



The fan's cables were torn out:



Just randomly floating on the bottom of the cardboard box:



After waiting over a month for my shipment, I figured it's up to me to fix this disaster.

Soldered the capacitor located near the IDE cable connector slightly angled to prevent it from falling off:



Cut and resoldered all the cut wires:



Finally, after spending all day soldering capacitors and wires back together, got one up and hashing... only to find that 5 of the boards aren't working, I'll have to try shorting the fuses tomorrow.

Second unit wouldn't boot and after a while of troubleshooting I realized that a capacitor on the backplane had the legs touching:



Bent those away from each other and now that's up and running.

I have a few questions...

1) One of the units reports a FAN RPM of 0 across both fans.  I saw in the thread that another person had this issue, I cut and resoldered all the fan wires to double check that BTMine didn't just forget to do this, and I cross referenced the working unit I have for pin placement and correct fan plugs.  I can't get this one NOT to run 100% fan (since it doesn't report any RPM).  Anybody fix this?

2) After reading about the original avalon design, I see that the case itself is used to extend the heatsink on the chips themselves... well my heatsink's are so bent out of shape due to DHL / BTMine they won't screw back in the case, I'm seeing 40-50c temps with fans up.  Am I OK to move these OUT of this wreaked case on to a shelve or something with proper airflow or should I get dangerous and try to bend all this crap back in place?

Overall this has been the most horrible experience yet buying Crypto mining hardware.

Trial and error is best. Put the blades in a working unit if you have multiple.

I'd buy two new PSUs to rule out that being the cause

docsham,

Since it's gone from 1/2 to 0, it does seem to point to more of a catastrophic failure.  However, just to be sure, I'd want to see your miner configuration to make sure there's nothing that has gone afoul there - especially with the attempted startup every few seconds.  You said that all the fuses on the individual modules are fine, correct?  By playing with connections, can you get any of the miners to start working at all?

Hi,

Swapped, data cables, then the controller board. still not hashing. sounds like it is trying to as the fans speed up slightly every 2-3 secs.

tried reflashing. rebooting etc.

still 0 hash.

any ideas please ?

Hi udt89,

Im using 1 x 1000W EVGA + 1 stock PSU.
going to swap the data cables with one of my 5 units.

thanks for your support.