Topic: Ultra Under-overclock image for A2 Innosilicon by Emdje - V5.0 - page 8. (Read 79798 times)

Quick question, does anyone know where the cgminer config file is located? I'd like to change some settings, such as --scan-time

Thanks

I can probably try to help you out with this I have an A2 with custom Firmware running

Hi

I just got an A2 last night from Zoomhash, and I'm having issues getting to actually mine anything.  I've tried your firmware, the stock firmware, as well as the ANX firmware.

The best I have achieved is with the stock firmware as I can see that it shows up as a worker on Litecoinpool.org, but nothing is being mined.

Looking at the status everything looks OK, but I really don't know how to interpret what I am seeing.

I would be willing to share some coin if there is anyone who can help me get this working.

Thanks

Robert

BTW - I know I should have included some screenscapes, but after a night of fighting with this, my brain is fried. There is also a question of what image/info is relevant.  If someone can help me out, I can post the images I sent to Zoomhash.

Weird the download link changed 
This is the right one:
https://mega.nz/#!OR03BIqA!lT3Gu6F0CL3i5ll0yl3SS2pn78NVpgZcJVITEnAyW9E

I tried to download the file and it saying no longer available and is their step by step how to fix the sd card download to it  thank you for your time.what do mean Make sure to modify the pools to your own....i keep getting this    ........................                        Error getting version for 127.0.0.1:4028 .......im hopping this will help you to tell me what wrong.....for your help i will give a donation to you .....

Right here: https://mega.co.nz/#!zME2Va7b!lT3Gu6F0CL3i5ll0yl3SS2pn78NVpgZcJVITEnAyW9E

Make sure to modify the pools to your own

where can i get the program for my sd card for my a2 termanator 90mgh

Its not the service from my line that's the problem...
Its the panel I have they installed a 125amp max panel in my basement so I'm looking to
add an additional panel on the side

So I need to know if my min in can handle 300amps with the additional panel

Yeah, I used the PDU's for the S5's - I like that they have power monitoring, but the accuracy is 1 amp, and environment sensors (temp and humidity) - but I really wanted remote rebooting, the fact they cheezed out and only put in 1 relay is lame.  Wiring wise I have everything wired with L6-30R, since that's what the PDU's have in them... I have 80amps 240v amps going there right now (my house is 200a 240v), but I'm upgrading the house circuit to 400a and running a dedicated 300a into the garage, as I don't ever get close to 100a in the house.  It's sad, all my S5's are sitting idle, since I don't have enough power to run them.

In future, I'll probably just buy dumb PDU's and not waste the money on them - one thing to keep in mind (assuming it's the same where you live), home power is rated at 240v, so if you have 100a service, that's really like 200a at 110... And the A2 only pulls down 5A at 240 - so the advantage of a PDU is more flexibility as the loads change.

I ordered a Pi2 and it arrived today, but I'm out of town for a couple days - so when I'm back, I'll probably take one of my 88's and just manually rewire it first.  I can't imagine they're using many of the wires, so at worse it might be a good option just to jumper the ones they use.  I'm building some remote rebooter boards for these also, so I'll probably just combine them and stick them on the outside of the case to avoid overheating with the Pi at the same time - most of my cases seem to have mounting screws on the top, near the Pi.

Yeah i have the same issue , working with these boxes on my offtime is fun but its not worth the time taken away from my other projects .

  Not had a chance to look at the PDU  board but i think you are right an adapter would be fine if you could build one, The PI's seem to be powered through the 32 port gpio cable so i think 12v to the board should do it.  I dont have any spare boards for my six machines so i cant try it right now.

I missed your post about the triplite PDU's that reminds me i have 2 of those POS pdus i bought that and 20amp units same issue you have.  I ended up just saying screw it an instaled 4 30amp circiuts and bought used 24apmp /208v PDUs instead and have had no power down issues since then

You should do that its a better option than modifying the boards , I found an electricin on criaglists to do the circut upgrades for around $300 all i had to do was buy the 30amp rated cables and the lp-30 twist lock power receptacles ($19 each)

In fact im having him come in this weekend and upgrade me from a 100amp panel to 200 amp so i can power up 3 machines sitting here gathering dust since my main breaker is filled up.

man that would be cool, one thing on that though with my A2's i have never had to reboot them in the month or so i have had them, if they do have issues i just vpn into the network and reboot them via the UI why do you need the remote rebooters ?

as for hooking them up to server PSU's that would save folks alot of money since you can buy refurb ibm 2880 watt PSU's cheaper than platinum desktop PSUs by a mile.

Hi just wondering if anyone can help me.  I have 7 A2 Mini Terminators all running about 35Mh/s according to the UI by innosilicon.  My issue is that one of the miners on ANY pool is hashing at a much lower rate

I have hooked it through CGRemote to see what it says its reporting at and MRR, ran the boards seperatly and everything seems normal (in line with all other miners).

Last night i flashed the card (to the image from Zoomhash) and that destroyed it, started hashing at 80kh/s so i copied the image from another A2 card and its started working again but still the same issue.

My A2's have 2 boards and 12 chips on each

Just wondering if anyone has an idea about what just may be going on?

(All temps, stales, rejected etc are very simular to all the others)

Also i have 1 dead board here, its looks perfect but is not getting any power for some reason...is there a place you can ship them too for repair?

Cheers
Haz

I've ordered up some parts to build remote rebooters for all of my A2's, so when I start tearing them apart for that, I'll take a detailed look at what the power distribution board is doing.  At worse it's simple enough to get a 12VDC -> 5VDC stepdown converter to power the Pi, regardless of whether the server PSU provides it or not (for instance with the breakout for the IBM 2880W supply, I think all it breaks out at 12V lines).  They're coming from China, so a couple weeks, but I'll more than likely post build instructions also for anyone else interested in having a remote reboot option for the A2.

Figuring out how to run the controller from a server PSU would be great. Many server PSUs can output a dozen or so watts of 5v power.

You can just replace the executable, that would be enough.

Hi, my A2 Mini (2 x 8 Chip blade) is running image 2.0, can I replace only the executable file of CGMiner (Cgminer3.9.0-A2-V3.1.rar) or I have to use the new full image 3.1?

Thanks in advance W_M

I'm interested to see your findings as well

Have you looked in detail at their power distribution board?  I haven't but I suspect they're not doing anything too fancy with it, so if they're only pulling the 12V lines from the PSU and jumpering the PWR ON, then you could just hack together an adapter to do it.  Then again, they could also be using the 5V for driving the Pi, in which case I don't think there's a 5v line on the IBM's.

If you haven't, I'm planning on pulling it apart in the next few weeks to add a connector for PWR ON, so I can hook it up to the same ethernet relays I used on my S5's to do remote rebooting.  The damn PDU's I ended up buying a bunch of (Tripplite) only shut off 1/2 of the 240v circuit, so sometimes the PSU's shut down, and sometimes they just dynamically switch to 110v and continue on like nothing happened - pretty annoying.

I love this stuff though, that's half the fun of fiddling with these miners - tweaking with the config, writing apps to run them, building hardware, etc.  Although I'm not making enough mining to cover my hourly rate...


Great link, I hadn't seen that chart before - so even at Titanium you're only looking at a 1-2% gain to 240v...  I'll be interested to see if in practice that's what I'm also seeing with the supplies.

the problem with using those 2880w psu's to run the A2's is the A2 controller board requires a 24 pin PSU connection so those would be a no go.

the problem with bronze is it gets no efficiency from 240 V unlike gold and platinum , yes bronze is cheaper up front but remember you are running miners like servers which is why server hardware requires 90+ platinum ratings since they are running 24-7 at maximum output unlike a regular pc/desktop.

look at the chart

https://en.wikipedia.org/wiki/80_Plus

Marvell1 makes some great points - especially in Bronze vs Gold, which in many cases these days don't have a major price difference.  With lots of the lower watt PSU's, there can be a big price difference between bronze and gold - I use Corsair CX750M's on my S5's, which are $80/each vs the RM750 which is $130 - so it's hard to justify the $50 delta for the 5% savings, especially at ~600w.  But set up to 850w, and the price difference between the gold and bronze is only $23 - and assuming you're consuming more power, now we're talking some savings.

I've wondered about the specifics of 110v vs 240v, I know it's supposed to be 2-3% more efficient, but it's hard to find concrete info.  I actually picked up the Bronze, Gold and Platinum versions of the 850w Corsairs to do some power tests with the S5, and I specifically bought a realtime logging power meter that can monitor both 110v and 240v, so once I do the tests, I'll post some info.

The other thing to consider if noise isn't an issue is the server-class PSU's... I have a bunch of the IBM 2880W with breakouts, which you can get for ~$200.  It's an outstanding PSU, platinum rated, and could run two Mega 110's without breaking a sweat.