[OPEN Worldwide] Group Buy #6 @86/50 ASICMiner Erupter USB 2.04236 ea. @ 5 units

[stex2009]

Will this be on for a few more days?

[freshzive]

Will this be on for a few more days?

closed already, he sent payment. sure there will be another buy though?

[MikeMike]

Will this be on for a few more days?

Stick around. If a few more people drop by Canary may start up Buy #7 sooner than later.

[Troupster]

Increasing the suggested difficulty of the stratum miner in cgminer, causes many more hardware errors.

When difficulty is set to 1 on slush's pool, I experience well below 0.5% hw errors.

When difficulty is set to 8 on slush's pool, I experience around 25% hw errors.

The math doesn't seem right for it being 8 times more difficult.

I'm going to experiment with the difficulties, but it seems that 1 works really well, testing out 3 now.

Update: It appears that every increase in difficulty via stratum doubles hw errors. Meh, just leaving it on 1 and calling it a night.

[vs3]

Increasing the suggested difficulty of the stratum miner in cgminer, causes many more hardware errors.

When difficulty is set to 1 on slush's pool, I experience well below 0.5% hw errors.

When difficulty is set to 8 on slush's pool, I experience around 25% hw errors.

The math doesn't seem right for it being 8 times more difficult.

I'm going to experiment with the difficulties, but it seems that 1 works really well, testing out 3 now.

Update: It appears that every increase in difficulty via stratum doubles hw errors. Meh, just leaving it on 1 and calling it a night.

You've probably misunderstood the idea of the difficulty. To put it in a simplified way - the goal is to reduce the number of requests to the server. So the difficulty is pretty much how many "work" items you want to get at a time - e.g. that's your local buffer. The second part of the equation is that you have a time limit to solve everything in your buffer. (Think of it this way - your work has a timestamp and needs to be sent back before that timestamp becomes obsolete)
If you mine fast - everything is good and by the timeout you send the completed work back.
If however you're slow miner - by the time you send the work back it's already obsolete and the server will discard it.

The message that it is a hardware error is probably incorrect and confusing.

[Troupster]

Increasing the suggested difficulty of the stratum miner in cgminer, causes many more hardware errors.

When difficulty is set to 1 on slush's pool, I experience well below 0.5% hw errors.

When difficulty is set to 8 on slush's pool, I experience around 25% hw errors.

The math doesn't seem right for it being 8 times more difficult.

I'm going to experiment with the difficulties, but it seems that 1 works really well, testing out 3 now.

Update: It appears that every increase in difficulty via stratum doubles hw errors. Meh, just leaving it on 1 and calling it a night.

You've probably misunderstood the idea of the difficulty. To put it in a simplified way - the goal is to reduce the number of requests to the server. So the difficulty is pretty much how many "work" items you want to get at a time - e.g. that's your local buffer. The second part of the equation is that you have a time limit to solve everything in your buffer. (Think of it this way - your work has a timestamp and needs to be sent back before that timestamp becomes obsolete)
If you mine fast - everything is good and by the timeout you send the completed work back.
If however you're slow miner - by the time you send the work back it's already obsolete and the server will discard it.

The message that it is a hardware error is probably incorrect and confusing.

I see what you are saying, however it throws an actual hardware error more often.

The mining just seems more stable with no added difficulty to help the servers.

[nexus99]

Looks like 6 is done... I'd like to get in on buy #7...

[os2sam]

Increasing the suggested difficulty of the stratum miner in cgminer, causes many more hardware errors.

When difficulty is set to 1 on slush's pool, I experience well below 0.5% hw errors.

When difficulty is set to 8 on slush's pool, I experience around 25% hw errors.

The math doesn't seem right for it being 8 times more difficult.

I'm going to experiment with the difficulties, but it seems that 1 works really well, testing out 3 now.

Update: It appears that every increase in difficulty via stratum doubles hw errors. Meh, just leaving it on 1 and calling it a night.

Are you calculating HW errors against U: or WU:?  I would expect the same HW: error rate against the WU: regardless of difficulty.  Is that the case?

When using higher than Diff1 your hardware errors aren't increasing there are fewer shares being submitted, but they are worth more.  So I would suspect if you convert your A: to Diff1 shares your error rate would be about the same.

[CanaryInTheMine]

Got a message from friedcat that miners have been sent.  quote: "Hi. They are sent. Tracking number will be generated tomorrow most likely."

[Guardian of Forever]

What is the timing we are looking at, are they being air freighted to you?

[CanaryInTheMine]

What is the timing we are looking at, are they being air freighted to you?

yes. usually about 2 days, but I won't know for sure till I have the tracking number and it tells me what is the delivery date.  so far they have arrived within 2 days of friedcat shipping.  i turn around on same day if received in the AM, but definitely withing 24 hours.

[Guardian of Forever]

Great job, Thank You

[SigurdDragonslayer]

Got a message from friedcat that miners have been sent.  quote: "Hi. They are sent. Tracking number will be generated tomorrow most likely."

Great! I was quite pleased with how quickly I got my last one, thanks again. You're invaluable, Canary!

[movellan]

Hoping to be in for 2 this round ... and also hoping price goes down.

M

if price goes down, i'll pass that on, but so far I doubt it...

Buy #6 is over and I missed getting in by a few hours. Will there be a #7? Thanks.

[jaslo]

Got a message from friedcat that miners have been sent.  quote: "Hi. They are sent. Tracking number will be generated tomorrow most likely."

Canary, you rock! Thanks so much for putting these group buys together.
Looking forward to getting mine (getting mining)!

[bitpop]

Canary is #1!

[sirano]

Add one more for me, and a usb bar   

[bitpop]

Need 9!

[howzbit]

Count me in for the next group buy (#7)...looking to order 5 + hub.

thanks!

[bitpop]

These are probably the coolest miners ever made. Ps you should really be using the rosewill usb 2 10 port hubs which can power 8.