Post
Topic
Board Hardware
Re: New Official AMT Thread
by
avaughan4
on 24/07/2014, 15:14:18 UTC
You said that you had 2 orders for 1.2 machines (580 and 650), but mentioned only receiving 1 miner. Is that correct? What speed is the miner? How is it working?

Thanks for the update

I was not expecting a delivery this morning, since I gave up reading the forums and lost all hope, but DHL knocked on my door and handed me a box with a miner inside. I have no idea how much mining power it has since I was on my way out and there was no information either, but I will power it up when I get home and post my results. I originally placed 2 orders with AMT, 580 and 650. I received the Kits but those don't work anymore, the chips stopped working one by one. The kits of 2 x 1.2TH/s only yielded 540GH/s at first and then died off. I asked AMT for RMAs but never received an answer in the past 2 months. So when I received this package today it was quite a surprise.

http://s3.postimg.org/l4dlylfnj/20140721_102542.jpg


Yes, I placed 2 orders. As for the miner I recently received, it is performing well. The miner has averaged 800GH/s which is what 4 boards, or 32 A1 chips should be hashing, according to the A1 chip specifications. Each Kit miner had 5 boards, 40 A1 chips, so that would yield 1TH/s. I have not tried changing the frequency of the chip. Right now each board is running at 800Mhz, which can be changed up to 1050Mhz. (The increments are 50Mhz up to 1050Mhz). I think the 4 boards could then yield 1TH/s, but that could shorten the life of the chips or cause them to burn out. I don't want to risk it.

On another note, I found how to change the language to English. If you SSH into the miner and open the file /var/www/conf.php there is a LANG variable that is set to "zh". Change that to "en" and save the file. The site will be in English without the help of Google Translate.

I also noticed that the 2nd and 3rd Pool entries are being essentially ignored. I see the entries present when looking at # ps -efww | grep cgminer. I tried with different pools and different workers on each Pool but the 2nd and 3rd entries report that no work is being done. Finally I set all three entries the same and called it a day.

I setup the miner to mine on Eligius today, 7/23 at 12pm EST. You can see the results here: http://eligius.st/~wizkid057/newstats/userstats.php/1Pof4JuXwDzvL6BK6r7roKuCmDMUUkghgn

How big is the power supply? How many watts is it pulling?

I don't know exactly how many watts it is pulling, nor do I have a gauge but maybe the interface can answer your question. The power supply can be seen in the case below and a close up picture of the power supply. The tower case is a standard size case, you can see all my pictures on page 125 of this thread. The web interface shows Utility and WUtility those read 22.6 and 86.24 respectively at the current moment. I have supplied pictures of the web interface and you can see those read 32.30 Utility and 84.07 WUtility.
I am using an APC Back-UPS BN4001 as the battery backup. Used a standard 110V computer power supply cable and the miner has been running well and the boards are cool enough to touch. I'm not well versed in electricity academics so I'm probably not the best candidate to answer these questions.

http://s30.postimg.org/tzgo4f599/IMG_0012.jpghttp://s30.postimg.org/hif2edgf1/IMG_0015.jpghttp://s30.postimg.org/jtqwnrvbx/IMG_0022.jpghttp://s30.postimg.org/i76aga8nx/IMG_0023.jpg