FYI if you guys want a 100% sure way to test whether its a pool issue or something wrong with your computer/setup just run the script file with the --benchmark flag. This sets bfgminer in benchmark mode and does not rely on pool diff settings to test your setup. It essentially generates local work using a VERY low diff(lower than what a pool can do). This will produce about 30-60 shares a SECOND based on what frequency you set, so its a sure proof way to test everything is working correctly hardware side.

I use a variation of this method to test your moonlanders before I ship them out. It allows me to have the stick return thousands of shares in the order of minutes, which would normally take a pool hours/days to do, and can quickly identify issues with the ASIC/stick.

I haven't posted this before because it completely stresses out your system/stick, so don't try this on a RPi for example and get worried if something freezes up

They could care less...to put things in perspective...the total hashrate of Ethereum is produced by less than 100 thousand GPUs. AMD and Nvidia combined sell millions of GPUs a year. They are just happy this is clearing a small part of their inventory before the next gen GPUs this summer

150F is nice and cool for these...I wouldn't worry unless temps go above 80c/175F on the ASIC itself. Of course it doesn't hurt to have more cooling...cooler ASIC=more efficient.

Yea sorry guys the sick issue is on my to-do list since I knew people would have a problem with it with var diff pools. I just figured most pools have options for really low diff or can be set manually. I guess I was wrong.

The problem with the watchdog logic is that it was originally written for GPU miners, and was designed for locked up GPU mining threads. A lot of that logic has to be rewritten for ASICs, and I was talking with Luke-jr about it but it was a lot of work at the time so never got around to it. At the very least Ill uploaded compiled version with longer timeouts as a "dirty" work around.

BTW adding a low diff port takes a pool operator a couple minutes and a few lines of code to do, so I would email them and tell them if its possible to set a port for low diff.

Yea I meant A2, had a brain fart and thought your A4 comment was for the A2. As for the A4 should have some interesting stuff "soonish" to report

Whatever you do DONT EVER mix rails on different PSUs to the same load source. Even a slight voltage difference on the two PSUs will reek havoc on them, and will either fry your PSU, your GPU or cause your cabled to combust.

Guess you missed my project...I took the even more efficient Alchminer chip and have squeezed it to under 4w/MH at it most efficient setting (500kh/s). It can go to over 1MH on max speed(about 8-9 watts).

Check out the link in my sig.

And all of innosilicons A4 based miners are non string designs..they have about 4 chips per buck.

Hey sorry I missed your PM. Yea I still have a few left, but this last batch is dwindling fast.

Unfortunately its next to impossible to track down what is causing this, but my guess would be the vcom driver, or a bug in bfgminer thats out of the scope of my driver. The driver is fairly simple and low level...if the yellow lite is blinking it means the ASIC is operating fine and correctly returing shares, but for whatever reason those share bits are never making it to my driver thread thats "waiting" to read a response. I know the windows vcom driver had this issue, especially with USB 3 ports. If your on windows make sure you download the latest silicon lab driver that was updated last month.

Bfgminer already lets you do this...quote from the FAQ section.



If your running windows just use the proper windows COM port syntax @\\.\COM1 etc.

The eyeboots, even though they offer plenty of juice, are actually very poorly constructed at the hub/port level. They skipped out on proper USB protocol and EMI shielding, since they have so many USB ports. I would not recommend them for this stick.

Is this a Bitmain thread :p ...so back on topic...wth is going on with Bitfury? They have added zero hash, and this chip is nowhere to be seen...which makes me think they are having major issues with the production version of the chip/immersion board.

its posted in the main thread on here...check out the second post here: https://bitcointalk.org/index.php?topic=1248914.0

This is the hub I recommend. http://www.amazon.com/Superbpag-Portable-Charger-Transfer-Samsung/dp/B013OK10YM/ref=pd_sim_sbs_147_1?ie=UTF8&dpID=41LaxmqTREL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=0FW4KH14FP92J3MHA2XF

It has an internal really well constructed Powersupply, and is the only hub I found that can handle all 7 ports running full speed. The on you linked probably has an external crappy brick PSU which is probably not good enough.

For the "Sick" issue it probably means you have the difficulty set too high...so it takes forever for the stick to submit a share, so bfgminer "thinks" its sick. Remember these are low powered devices and most pools think you are connecting high speed ASICs to them and have stock high difficulties. Make sure you are using vardiff with low initial diff, or forcing a diff of under 100.

16 diff per stick is a good starting point. This will give a share every second or so.

In NY...and I beg to differ, I've already sold a few of these for the same price. The same people that are on here buy on eBay when they DONT want scammers, since both buyers and sellers are protected. If anything all the scammers and lowballers are here. The only difference with eBay is that price is obviously inflated by 10% or so since sellers need to cover fees.

No uses about 2kw at the wall. I'm using a 1300 ATX and 800 watt server PSU to power it.

Putting one of my units up for sale. I am the dev of all the firmware/bfgminer ports for this device, so it has the latest firmware on all 8 hashboards, and runs the latest version of bfgminer. Stock these units did about 200MH, with my upgrades they do ~240, and work on all pools.

These have been selling for around 1800-1900 on eBay...can do a bit lower but don't lowball me :p

So you bought an over 5k miner...and just left it in the box and never used it? Lol come on man come up with something more believable when your outright lying...

People use this mostly as cheap little lottery miners. They cost next to nothing to run, and you have a chance of making about $100 if you get lucky

scrypt and x11 are different algorithms..this mines only scrypt coins.