Problems of U3

[Chris301197]

Hi at everyone! I still have some problems with my U3: hash rate low, difficulty very low ( and too errors (no valid hash rate for over 2 seconds and blocks rejected) Can you show me a good configuration on Mhz and mV? I modify that on the cgminer.cfg file and work very well.

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[DavieT1337]

I made my steps with the Anminter u3+ and got stuck on the default settings.
I got Problems with the Hashrate and god also some Hardwareerrors showin up.

After tryin different configs i figured this out for myself to be the best for the Antminer.

cgminer.exe --bmsc-options 115200:0.54 -o stratum+tcp://stratum.bitcoin.cz:3333 -u DavieT.1337 -p x --bmsc-voltage 0830 --bmsc-freq 0982

I used zadig to convert the drivers for the USB. Otherwise Mining on my laptop where difficult with an Antminer u3.
I used a config and get 72 gh/s instead of 62gh/s. So you can also try:

cgminer.exe --bmsc-options 115200:0.5 -o stratum+tcp://stratum.bitcoin.cz:3333 -u DavieT.1337 -p x --bmsc-freq 0B82 --bmsc-voltage 0800

hope i could help
have phun

regards
DavieT1337

[Chris301197]

Sorry, but this script doesn't work. I've tried but the cgminer open the cmd and close it. Can you show me an other solution, please?

[DavieT1337]

Sorry, but this script doesn't work. I've tried but the cgminer open the cmd and close it. Can you show me an other solution, please?

Could u please quote ure config, so I can see whats the Problem - Otherwise only 1 of ure Miners should be connected while startin the .bat File.
After gettin Hashes from ure first Device. Start connecting the others, if u got more.

regards
DavieT1337

[witch]

Did U try the setting with Pause @ the end like I said in your other post?

[Chris301197]

Sorry at everyone! I've connected the U3 at my pc gaming and the hash rate was 62Ghash/s and very stable for all time! The problem was the notebook that went very slow because it has got only 2 Gb of RAM and a dual-core processor. But the current is more than 800 watt!!! So I'll try to build a new computer quad-core with 4-8 Gb of RAM, a power supply of 300 watt max and to connect more antminers U3 with a very big USB hub. This may is the best solution but only during the day because I've the solar panels and I can save much current.

[DavieT1337]

Sorry at everyone! I've connected the U3 at my pc gaming and the hash rate was 62Ghash/s and very stable for all time! The problem was the notebook that went very slow because it has got only 2 Gb of RAM and a dual-core processor. But the current is more than 800 watt!!! So I'll try to build a new computer quad-core with 4-8 Gb of RAM, a power supply of 300 watt max and to connect more antminers U3 with a very big USB hub. This may is the best solution but only during the day because I've the solar panels and I can save much current.

Sounds really cool.  What Solar Panels do u use for this?  can u give an example product or cost?

In case u want to ride the antminers in a Hub. U should inform urself how much u can put on one hub/computer.
I got 4x Antminer u3 on my normal Gaming pc and it works quit well. It`s normal there are drops while using the Computer, but it`s not much.

Every Miner uses 60 Watt and the Machine runs on a 350W. So it`s quit more phun than the ROI 

regards
DavieT1337

[witch]

Np, and have a Blast man!