Well I ordered a second one today. Wonder when it will arrive
Yesterday I almost ordered one. The difficulty is going up faster than expected, I'm still in doubt. Also sold all my BC last week, I'm waiting for a good moment to buy back in. Maybe I just have to take the plunge. |
|
|
|
|
I'm thinking about modifying the Gridseed CPUMiner for use with the A2 miner.
Unfortunately there is no driver source available, I wonder whether the driver for the A1 chip is compatible with the A2.
I have a strong feeling that the interface for both the A1 and A2 chips is exactly the same.
|
|
|
|
I downloaded the image that was posted here by MinerEU but I do not see the temperatures and the cores. Downloaded the one from https://github.com/MinerEU/scripta_a2 and then it linked to chrome://mega/content/secure.html#!t91g2BRK!qW2P1EeVZ_1M8QTHPjuEQWAgq-nK3Tlfgskl9itAo7A Now I am going to try the dropbox link image that was shared here. Ow and I can't find this file called /var/www/run.sh to change the frequencies. thnx I never tried the MinerEU image, in the Innosilicon image /var/www/run.sh should be there. You don't have to change the frequencies by modifying run.sh, in the original image you can do it from the UI. |
|
|
|
|
Just looking with my IR thermometer at the voltage regulators and there is a big difference between the temperatures.
The PCB is very thin, it bends easily, and it looks like not all of them make good thermal contact.
Tomorrow morning I will try to improve the cooling, now I'm too tired, went up 6 o'clock this morning.
|
|
|
|
Yes ground pads everywhere under the big heatsink. There is a thermal pad on both sides.
A good custom housing would just be a tunnel with one blade and a fan at one end.
If they are all ground pads a thermal pad on the bottom may not be needed, but I assume they wouldn't put it there if it isn't necessary. |
|
|
|
Not a problem. On the bottom of the case you will see 6 screws for each blade. Two per blade are in a keyhole, just loosen those and remove the other four.
Inside the case pull out the power and data connectors from the blade, if there is hot glue on the connectors just pull it off. Unscrew the small heatsink first, then unscrew the large one. Once unscrewed they are loose, not bonded or anything :-)
Yes, I already saw how it is assembled. I have to be careful with static discharges, 28nm chips are very sensitive. Also unclear is how much mechanical pressure you can put on the chips when reassembling without cracking them. The Chinese like to use thermal glue everywhere, after heating it with a fohn it will peel off easily. I can see that there is a thermal pad between the top heat sink and the chips. I assume there is no pad between the PCB and the bottom heat sink? At least I don't see it. Are all these big copper pads on the bottom of the PCB ground pads? Edit: I looked more closely and see now that there is also a thermal pad on the bottom. Maybe a good idea to put some MX-2 underneath the copper pads of the voltage regulators as well. |
|
|
|
And MinerEU may not be very good at communication but the product at least does what it says on the tin. Power of course is higher. I have my 30g of Artic M2 now, so will be improving the cooling further tomorrow
Haha, allright yesterday I also got mine, a nice syringe 30g. 8 years durability! I'm still a bit hesitant to disassemble the blades though. |
|
|
|
Yes the $2500 with $200 shipping, and $540 VAT (same across most of Europe) turns into $3240 quite quickly. I know that when it arrives in UK DHL or whoever will add on a £50 handling charge if not more. So lets say a landed in hand price of $3300. Power here costs me £0.13 a Kwh, so if it is using 1150w that'll be about $550 over 90 days. So all in all it'll be $3850 for 90 days.
The A2 using half the power comes slightly more expensive at $4125 over 90 days - but my current A2 is hashing at 30.44Mh/s stable.
So
A2 = $135 Mh/s
Zeus = $137.5 Mh/s
A2 is cheaper :-)
That is exactly what I mean, over here the power costs even more (€0,22 per KW/h). And you have to buy an additional 1200W power supply for the Zeus, that adds at least another €175,- My A2 uses ~350W, that's about 1/3th of the Zeus miner. |
|
|
|
920W power use though.
920W is wishful thinking, in practice it is more like 1150W. I know some people with a GAW Falcon, and that is what they measure on average. I know someone that has the 22 Mh/s versions runnign tha were supposed to run at 800watts and they are running at 760.... That someone is me btw... The Falcon has 33% more chips, the power usage is also 33% higher, > 1KW. |
|
|
|
920W power use though.
920W is wishful thinking, in practice it is more like 1150W. I know some people with a GAW Falcon, and that is what they measure on average. |
|
|
|
Me too  I want to order a second A2Mini, but first I would like to know whether it is in stock and whether it can be shipped coming Monday or Tuesday.
really? In about a week a 28mh/s zeus will be available for $2499.... and it's consistently build. No way I'm gonna buy a Zeusminer. That is undoable with all the noise and heat it produces. Over here 1 KW/h costs $0,31 and I have to pay an extra 21% VAT on the Zeusminer. I have some GAW Fury's here, I don't use them for mining but they are handy to bake eggs on. |
|
|
|
|
I want to order a second A2Mini, but first I would like to know whether it is in stock and whether it can be shipped coming Monday or Tuesday.
|
|
|
|
I never got an email confirmation for my payment either. When your order status is not hold but processing it is fine.
At least this is what MinerEU told me 2 weeks ago.
TBH I don't know whether it was in a state other than "Processing" but it's in that state right now. Are you saying you ordered 2 weeks ago and still don't have your gear? I already have my gear, it shipped one day later than promised, but it came in good condition. Although power cable and network cable were missing, but that is something I can live with. |
|
|
|
To successful buyers: How long did it take from Bitcoin network confirmation to e-mail confirmation? I hope this is a manual process and there's nothing wrong with my payment. I paid yesterday.
Starting to get a little nervous. Granted, it's weekend, but still...
I never got an email confirmation for my payment either. When your order status is not hold but processing it is fine. At least this is what MinerEU told me 2 weeks ago. |
|
|
|
Mr minereu.com has contacted me by private message, and he solved the problem in ten minutes.
Great! Thank you very much.
No... he wasn't the real user minereu.com but a scammer named "minereu.com." with a dot at the end of the name.
Bad experience.
Be careful about that.
that guy has been flagged up several times in this thread already  Cancer is the solution for him and his children. It's also my fault, but... but.... but if minereu.com did his duty by responding to customer's emails, the scammer would not have easy game. Strange that you don't get answered by them. I always get a reply, but it takes some hours and mostly one-liners, they are not very communicative. |
|
|
|
How long does it take before the hashrate on the pool is accurate? Or is that pool specific?
It depends upon the pool, most of them average over 15 to 60 mins. |
|
|
|
What is the default password?
I think it is user: pi password: innosilicon I turned out to be minereu, no username Than you probably have the minereu firmware and not the innosilicon firmware I got delivered with the device. I assumed you were trying to login with ssh. The web interface has no password at all. You can find the latest inno firmware over here: https://www.dropbox.com/s/zz8uj8xbt8tkqi4/ltc-a2-2014-05-21.img.gz |
|
|
|
What is the default password?
I think it is user: pi password: innosilicon |
|
|
|
|
I've been playing around with the miner for some time and one blade is clearly better than the other.
One blade with 432 good cores generates ~1.5% HW errors, the other one has 423 good cores and ~4.7% HW errors.
I don't know what the difference is, it looks like they put one A grade blade and one B grade blade in the Mini.
The temperature of the bad blade is always a few degrees higher.
Now I run the good one at 1280 MHz and the bad one at 1200MHz, this gives me the best results.
On average 3.7% HW and 26850 WU. pool hash rate is ~29.2
|
|
|
|
The RPI is more than adequate for this task. Its not doing any real work
No, it is not doing real work itself, but getting new blocks, verifying the shares and sending them to the server, is maybe more than it can handle. When I do this on a fast PC, I clearly see very big spikes in processor activity when a share is being send. |
|
|
|
|
Show Posts
