[ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING***

[aspeer]

I'm giving the forum about 5 minutes every 4 hours this weekend.  My family hasn't seen me for weeks and my wife would like me to be around a little bit while I'm home.

One liner: Full kit orders will go out Monday/Tuesday.  Starters will not go out because we ran out of M-boards.  There was a delay two weeks ago at the factory (ran out of connectors) that we are now feeling at this end.  I will compensate starter kit buyers with equivalent coin for this delay.  More details to follow.  Your starter kits begin mining for you tonight...

This is why i have no problem dumping my hard earning money into your store. Awesome customer support dave, thanks!

[dracore]

I just noticed my noncerate dropped to 0 for no reason.  I just restarted the miner and it's running again.  I've only had it running for about 2 days...  does it mean it's not stable?

I noticed that the performance seems to degrade over time.

I added the following line to /etc/crontab on the raspberry pi unit:
*/15 * * * * root /opt/bitfury/start-miner.sh

This restarts the miner software every 15 minutes. Since then the performance is rather stable. Probably some of the chips get stuck and need to be re-initialized once in a while?

Possibly.  My hash rate has dropped back to 0 again.  Tried stop/start miner but no luck.  I'm going to reboot the rpi and see what happens.

EDIT:

There is something screwd up here:

root@bitfury:/opt/bitfury# ./start-miner-console.sh
INIT: 0 chips detected
./start-miner-console.sh: line 1:  6087 Floating point exception/opt/bitfury/chainminer/miner
root@bitfury:/opt/bitfury#

[sunniestsolomin]

Of course it did.  Watch it over the next hour.  Do you have all three of your pool entries pointed to BTCGuild with different worker numbers for each?

THANK YOU. I had no idea I had to create 3 separate workers. Getting 25ghs now.

[-Redacted-]

You don't absolutely have to, but it seems to work out better...

[dacman61]

Got my kit up and running. Getting 24.895Gh/s after running for 30 minutes. I'm connected to the Bitminter pool.

http://imgur.com/AYlejh6

EDIT: After an hour, it's up to 25.29Gh/s.

What difficulty are you using?

With Bitminter, it does it automatically it seems... I haven't seen an option to manually change it like when I was on Slush's Pool.

[cet]

With Bitminter, it does it automatically it seems... I haven't seen an option to manually change it like when I was on Slush's Pool.

I asked DrHaribo about this, he indicated that the value is set automatically and adjusts over time.

/cet

[dacman61]

My August kit just arrived at my door! Order #108.

I think I'm feeling a bit ill at work. Time to go home and rest up.

Feel better man!

He'll be fine.  This kind of illness is easily - and almost instantly - cured by unboxing a recent Bitfury delivery. There's something very potent in those green styrofoam peanuts.  Just dig around in them for a minute, and you'll be good as new...

Yes, I'm feeling much better now. Those peanuts do the trick.  It feels so good to hash again. I was starving for mining bitcoin ever since shutting my GPU's a few weeks ago.

[mdbssm]

One liner: Full kit orders will go out Monday/Tuesday...

Fedex track # received. Thank you, thank you, thank you!

[greaterninja]

One liner: Full kit orders will go out Monday/Tuesday...

Fedex track # received. Thank you, thank you, thank you!

What is your order #?  Guys please post the latest order # to receive tracking / ship.  TY

[mdbssm]

One liner: Full kit orders will go out Monday/Tuesday...

Fedex track # received. Thank you, thank you, thank you!

What is your order #?  Guys please post the latest order # to receive tracking / ship.  TY

#14x

[dracore]

Oh weird...  my hash rate went from 0 to 3 after half an hour, then went to 17, and now jumped back to 25.

I think there's something really funky going on with these chips... definitely do not feel like they're stable.  Almost like some chips shutting down for a while and then coming back to life when they feel like it.

[dben428]

Forgot a step....
Change pools - start hashing into  your own accounts instead of Daves

Haha, I wonder if there is anyone who forgot that step.

Just got my starter kit this morning and got it set up (order #89). Just a single H-board, no EOL. Reported noncerate is 26.872GH/s and 25.483GH/s on the pool. It's only been running for about 10 minutes, so I will update later after it has been running for a few hours.

I am very happy with Bitfury and MegaBigPower. Great job to everyone involved.

A few hours later, things are still looking good. 27.144GH/s noncerate and 26.915GH/s with diff 32 on BTC Guild.

[dani]

Oh weird...  my hash rate went from 0 to 3 after half an hour, then went to 17, and now jumped back to 25.

I think there's something really funky going on with these chips... definitely do not feel like they're stable.  Almost like some chips shutting down for a while and then coming back to life when they feel like it.

I saw the same happening on my chips. Two days ago I was good with 75-77. They keep jumping from 60 to 77 as they please. If you have any information on why this happens please let me know. I'm willing to test anything in case I can elaborate more on this behaviour

[tom99]

Forgot a step....
Change pools - start hashing into  your own accounts instead of Daves

Haha, I wonder if there is anyone who forgot that step.

Just got my starter kit this morning and got it set up (order #89). Just a single H-board, no EOL. Reported noncerate is 26.872GH/s and 25.483GH/s on the pool. It's only been running for about 10 minutes, so I will update later after it has been running for a few hours.

I am very happy with Bitfury and MegaBigPower. Great job to everyone involved.

A few hours later, things are still looking good. 27.144GH/s noncerate and 26.915GH/s with diff 32 on BTC Guild.

  your diff too high and try to set your diff to 16.

[dracore]

Oh weird...  my hash rate went from 0 to 3 after half an hour, then went to 17, and now jumped back to 25.

I think there's something really funky going on with these chips... definitely do not feel like they're stable.  Almost like some chips shutting down for a while and then coming back to life when they feel like it.

I saw the same happening on my chips. Two days ago I was good with 75-77. They keep jumping from 60 to 77 as they please. If you have any information on why this happens please let me know. I'm willing to test anything in case I can elaborate more on this behaviour

Same here.  My board just dropped back to 0 again.  I think there is something wrong.

[kendog77]

Oh weird...  my hash rate went from 0 to 3 after half an hour, then went to 17, and now jumped back to 25.

I think there's something really funky going on with these chips... definitely do not feel like they're stable.  Almost like some chips shutting down for a while and then coming back to life when they feel like it.

I saw the same happening on my chips. Two days ago I was good with 75-77. They keep jumping from 60 to 77 as they please. If you have any information on why this happens please let me know. I'm willing to test anything in case I can elaborate more on this behaviour

Same here.  My board just dropped back to 0 again.  I think there is something wrong.

ASIC devices are so time sensitive that I suspect we will see a lot of hardware and software issues with the new ASIC devices that are coming to market. Unfortunately, the early adopters are also beta testers.

I'm still on the fence about a BitFury purchase, so I'm watching intently...

[E]

Woohoo - got my starter kit out of billing-address limbo!

Aaand...

Hashrate 1hr   34665 Mh/s

At the pool!!


38W at the wall on 120V, which seems pretty good given how lightly I'm loading the PS (Corsair TX750).

I have some tips to improve performance on the software side that I'm collecting as I roll them out here;
I've got my pi's load average down to 0.10 and total CPU utilization at ~5% with only two shares rejected in the last hour.

[tom99]

Woohoo - got my starter kit out of billing-address limbo!

Aaand...

Hashrate 1hr   34665 Mh/s

At the pool!!


38W at the wall on 120V, which seems pretty good given how lightly I'm loading the PS (Corsair TX750).

I have some tips to improve performance on the software side that I'm collecting as I roll them out here;
I've got my pi's load average down to 0.10 and total CPU utilization at ~5% with only two shares rejected in the last hour.

  How did you get get up so high for 25Gh/s starter kit?

[E]

Woohoo - got my starter kit out of billing-address limbo!

Aaand...

Hashrate 1hr   34665 Mh/s

At the pool!!


38W at the wall on 120V, which seems pretty good given how lightly I'm loading the PS (Corsair TX750).

I have some tips to improve performance on the software side that I'm collecting as I roll them out here;
I've got my pi's load average down to 0.10 and total CPU utilization at ~5% with only two shares rejected in the last hour.

  How did you get get up so high for 25Gh/s starter kit?

That's probably a fluctuation on the high side. The nature of Poisson processes means there's uncertainty equal to 2x the square root of the number of shares returned (at the 95% confidence level). That was 24480 diff1 shares at difficulty 32, so 765 diff32 shares; 2*sqrt(765) = 55, so I should report the rate as 34500 +/- 2500.

But, more to your point, pencil mod to achieve 0.74Vdd at the lowest voltage chip plus heatsink on back of board under regulator thermal vias. Stratum proxies running on external (fast) host; chainminer recompiled with

Code:

-Ofast -march=armv6zk -mfloat-abi=hard -mfpu=vfp -fno-strict-aliasing

instead of the default optimization flags. No manual chip tuning at this point. Estimate ~80% of the increase is due to the Vdd change, but I'm not going to slow things down to take better measurements I will note that if this were achievable on all 16 cards the full kit would be >550GH/s!

[-Redacted-]

Well, things certainly got quiet on this thread after that post....