Ultra Under-overclock image for A2 Innosilicon by Emdje - V5.0

[BakSAj]

My problem with emdje's latest version is that if first pool stops with "waiting for work to be available from pools" and is still alive, then cgminer never switches to backup pools and minings stops. Any idea, mayb some cgminer setting? Also Im not sure if this latest version really contain the extra-nounce support since I stopped seeing the extra-nonce messages from nicehash (#xnsub).

$cmd = "sudo ./cgminer ... --A1Pll1 ".$speed1." --A1Pll2 ".$speed2." --A1Pll3 ".$speed3." --A1Pll4 ".$speed4." --A1Pll5 ".$speed5." --A1Pll6 ".$speed6." --diff ".$diff." --cs 8 --stmcu 0 --hwreset
--lowmem > cgminer.log &";

[emdje]

My problem with emdje's latest version is that if first pool stops with "waiting for work to be available from pools" and is still alive, then cgminer never switches to backup pools and minings stops. Any idea, mayb some cgminer setting? Also Im not sure if this latest version really contain the extra-nounce support since I stopped seeing the extra-nonce messages from nicehash (#xnsub).

$cmd = "sudo ./cgminer ... --A1Pll1 ".$speed1." --A1Pll2 ".$speed2." --A1Pll3 ".$speed3." --A1Pll4 ".$speed4." --A1Pll5 ".$speed5." --A1Pll6 ".$speed6." --diff ".$diff." --cs 8 --stmcu 0 --hwreset
--lowmem > cgminer.log &";

That is weird. Do you start cgminer manually, or do you use the webinterface??

Extranonce works:

Code:

[2015-04-15 00:29:57] Accepted b4ef340f Diff 362/256 BA1 0 pool 0
 [2015-04-15 00:29:57] Pool 0 confirmed mining.extranonce.subscribe with extranonce1 57fea84e49 extran2size 3
 [2015-04-15 00:29:57] Pool 0 difficulty changed to 512
 [2015-04-15 00:29:57] Network diff set to 2.75K
(5s):17.11M (avg):16.71Mh/s (pool):16.24Mh/s | A:56832  R:0  HW:0  WU:14872.7/m

But you do need to add the right command to the adress (#xnsub) of the pool.

[BakSAj]

Hm, I downloaded 3.1 solo cgminer. How can I make sure Im using the right version?

pi@raspberrypi:/var/www$ ls -la ./cgminer
-rwxr-xr-x 1 pi pi 959198 Mar 24 13:49 ./cgminer

[BakSAj]

Emdje, thanks for providing version 4 binary. I confirm it works with extra-nonce. I did send you some little DOGE donation.

[emdje]

Emdje, thanks for providing version 4 binary. I confirm it works with extra-nonce. I did send you some little DOGE donation.

You are welcome, glad it works with extra-nonce. I received your donation, thank you.

[emdje]

Update:
- I received a broken board from pictsidhe and I will soon tryfto fix my broken board with that one, see how that goes.
               (If that does not work I will try and make the board work with one missing chip, which I think is not much more than completing the daisy)
- Ordered some larger heatsinks on aliexpress for the chip side of the board for a larger cooling surface (I paid 30 dollar for them including shipping, I see they changed the price since: http://www.aliexpress.com/item/High-power-amplifier-heat-sink-fins-fine-toothed-radiator-200-69-36MM/1757685761.html, must have been a mistake  ) They are double as high and have much more fins.
- And I ordered some variable resistors that I want to solder on for easy over/under clocking.

Will keep you guys and girls updated.

[NPC]

Update:
- I received a broken board from pictsidhe and I will soon tryfto fix my broken board with that one, see how that goes.
               (If that does not work I will try and make the board work with one missing chip, which I think is not much more than completing the daisy)
- Ordered some larger heatsinks on aliexpress for the chip side of the board for a larger cooling surface (I paid 30 dollar for them including shipping, I see they changed the price since: http://www.aliexpress.com/item/High-power-amplifier-heat-sink-fins-fine-toothed-radiator-200-69-36MM/1757685761.html, must have been a mistake  ) They are double as high and have much more fins.
- And I ordered some variable resistors that I want to solder on for easy over/under clocking.

Will keep you guys and girls updated.

$234 for six plus an extra ~$130 to see it in less than a couple of months is almost as much as I paid for the miner itself.

[emdje]

$234 for six plus an extra ~$130 to see it in less than a couple of months is almost as much as I paid for the miner itself.

Heat sink is already here, and was 30 bucks for 2, so doable. And hey it's just a hobby, just looking how much I can change the thing. You guys might get some good info out of it. And it keeps me of the streets 

[Neosaan]

I installed 4 - version of firmware.
And now I have a problem.
When the first pool stops, Asik is not transferred to the reserve pool. but simply continues without a solution.

1) pool
stratum+tcp://eu-01.miningrigrentals.com:3333#xnsub
2) pool
stratum+tcp://stratum.nicehash.com:3333#xnsub

AVG = 5s):00.00M (avg):00.00Mh/s (pool):00.00Mh/s

[emdje]

I installed 4 - version of firmware.
And now I have a problem.
When the first pool stops, Asik is not transferred to the reserve pool. but simply continues without a solution.

1) pool
stratum+tcp://eu-01.miningrigrentals.com:3333#xnsub
2) pool
stratum+tcp://stratum.nicehash.com:3333#xnsub

AVG = 5s):00.00M (avg):00.00Mh/s (pool):00.00Mh/s

I tested it out by making a typo in the first pool (so it is 'dead'), but it just continues to the backup pool with me:


I do see you have miningrigrentals as a fist pool, meaning you have other pools configured on there. I think you should look there for a solution.

[Neosaan]

With firmware 3 is no such problem.
So prolema still in firmware instead of 4 in the pool.



1007x608(139.04 kB)





1024x608(192.76 kB)

[emdje]

With firmware 3 is no such problem.
So prolema still in firmware instead of 4 in the pool.

Weird because I use version 4 as well and have no issues with it.

Can you post the logs, so I can take a look? Pretty hard to find the problem if I can't recreate it.

[BakSAj]

With firmware 3 is no such problem.
So prolema still in firmware instead of 4 in the pool.

Weird because I use version 4 as well and have no issues with it.

Can you post the logs, so I can take a look? Pretty hard to find the problem if I can't recreate it.

Yeah, same problem here. Sometimes when pool 0 goes off, cgminer stops mining with "no work available from pools" message. Didnt see this in earlier versions (with old stratum code). But I noticed this behaviour only with pool 0 = BetaRigs, pool 1 = mining rig rentals.

Btw, do you guys use any cgminer watcher? Since Im (from the beginning) loosing e.g. one blade in 14 days and then I need to restart manually.

[radeon2k8]

so if i want to get more hz (let's say the default is 1200, i want 1300-1350) all i have to do is to buy a stronger PSU?
the current one is 850w gold.

[emdje]

so if i want to get more hz (let's say the default is 1200, i want 1300-1350) all i have to do is to buy a stronger PSU?
the current one is 850w gold.

I would measure what the PSU draws right now. Overclock one blade, measure again and calculate if your PSU can handle it. PSU's are most effective when used intensively (but not over their limit of course). If it is not enough than you can buy another one. Or use an extra smaller one for one or two blades.

[emdje]

With firmware 3 is no such problem.
So prolema still in firmware instead of 4 in the pool.

Weird because I use version 4 as well and have no issues with it.

Can you post the logs, so I can take a look? Pretty hard to find the problem if I can't recreate it.

Yeah, same problem here. Sometimes when pool 0 goes off, cgminer stops mining with "no work available from pools" message. Didnt see this in earlier versions (with old stratum code). But I noticed this behaviour only with pool 0 = BetaRigs, pool 1 = mining rig rentals.

Btw, do you guys use any cgminer watcher? Since Im (from the beginning) loosing e.g. one blade in 14 days and then I need to restart manually.

Hmm two people with the same issue. Will look into it when I get back from my holliday. Most likely put in the old stratum code.

[NPC]

$234 for six plus an extra ~$130 to see it in less than a couple of months is almost as much as I paid for the miner itself.

Heat sink is already here, and was 30 bucks for 2, so doable. And hey it's just a hobby, just looking how much I can change the thing. You guys might get some good info out of it. And it keeps me of the streets  

It's mainly a hobby for me as well.

Unrelated, the Raspberry Pi in mine let out the magic smoke, and none of the local distributors had any of the "original" RPIs in stock, so I ordered a Raspberry Pi 2.  I've modified the mounting plate to fit it and bent two of the GPIO pins back to accommodate the cable the miner uses, and it powers on, boots, etc., but doesn't seem to be able to talk to the blades.  I'll get the actual error and post it here, but it's complaining of something along the lines of "Unable to set CS pin 0x4...".  The first twenty-six GPIO pins are the same, so that's not the issue.  Any idea what's going on?

[emdje]

It's mainly a hobby for me as well.

Unrelated, the Raspberry Pi in mine let out the magic smoke, and none of the local distributors had any of the "original" RPIs in stock, so I ordered a Raspberry Pi 2.  I've modified the mounting plate to fit it and bent two of the GPIO pins back to accommodate the cable the miner uses, and it powers on, boots, etc., but doesn't seem to be able to talk to the blades.  I'll get the actual error and post it here, but it's complaining of something along the lines of "Unable to set CS pin 0x4...".  The first twenty-six GPIO pins are the same, so that's not the issue.  Any idea what's going on?

Try installing the new bcm 2835 library. Probably the one I installed on the image is not compatible with the PI 2 : http://www.airspayce.com/mikem/bcm2835/index.html

[Elphamyto]

Are these new images compatible with the A2 Mega? Or is everyone overclocking the original 88 MH/s A2's? 

[emdje]

Are these new images compatible with the A2 Mega? Or is everyone overclocking the original 88 MH/s A2's? 

Unfortunately the A2 Mega uses a different board design which is not compatible with this image. I tried several times to make it work with the new A2's but I don't own one so it is very hard to try stuff out.