Ultra Under-overclock image for A2 Innosilicon by Emdje - V5.0 - page 5.

coinflow

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Quote from: emdje on February 20, 2016, 06:43:34 PM

Quote from: coinflow on February 19, 2016, 05:34:56 PM

Is it possible to update a miner with your image simply via apt-get update/upgrade, once it is installed and running?
What version of glibc is in use? See here: http://arstechnica.com/security/2016/02/extremely-severe-bug-leaves-dizzying-number-of-apps-and-devices-vulnerable/

No that is not possible, and I don't know which version of glibc is used I would have to check that when I have some more time.

I'd recommend to check that as soon as possible. Since it is a really severe thing.

mjgraham

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Does anyone have any idea what the LEDs on the boards represent? been trying to repair some boards and they all have some variation of the LEDs . I had one board that had an incorrect feedback resistor in circuit was running about 0.7v, just one one pair of A2s. Seems to be either people work on things with hammers or I guess they get dropped a lot. Lots of sheared off components. Anyone else work on these boards and have any stories?

Looking at them now after testing I guess they relate some how to the number of chips found, maybe a binary count to a point even though when I bypass some it kinds of relates to that. Something else that is odd if I bypass any of the chips on the left chain I don't get any communication, I can do them on the right. Also the left chain seems to have a 3Mhz SPI bus and the right only has a 1.5 Mhz bus. Anyway just some more observations

emdje

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Quote from: ZeroGee on February 20, 2016, 04:03:39 PM

I'd be blaming the power supply. Disconnect say half of the boards from power and see if it becomes stable. The PSU in mine could not handle more than 4 at 1200MHz, and only 5 at 700MHz. I just strapped a second power supply to mine, each powering 3 boards at 1320MHz.

That is very well possible, my blade is using about 200 watts for the one 8 chip blade (218W in total). But running at 700MHz would draw about 115W per blade * 6 = 690W + fans so lets say 750W for the power supply. If it is a bad one it might cause it to be unstable.
(Running your rig overvolted at 1440 MHz it would draw 1500+Watts and doing ~132MH/s) <-- I do not recommend btw because of the power draw and the heat it produces, 1 blade like I have you can cool very well.

emdje

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Quote from: coinflow on February 19, 2016, 05:34:56 PM

Is it possible to update a miner with your image simply via apt-get update/upgrade, once it is installed and running?
What version of glibc is in use? See here: http://arstechnica.com/security/2016/02/extremely-severe-bug-leaves-dizzying-number-of-apps-and-devices-vulnerable/

No that is not possible, and I don't know which version of glibc is used I would have to check that when I have some more time.

ZeroGee

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coinflow

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Is it possible to update a miner with your image simply via apt-get update/upgrade, once it is installed and running?
What version of glibc is in use? See here: http://arstechnica.com/security/2016/02/extremely-severe-bug-leaves-dizzying-number-of-apps-and-devices-vulnerable/

mjgraham

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As far as power it you did hook it up backwards and the psu did turn on you'd have a lot of broken stuff, like it is at the least you will have a +5 to gnd short back through the communication cable. After finally getting a complete A2 unit I have found that the engineering is just enough to get by, if you notice it is on a 8 pin header but with a 6 pin connector , probably had millions of them in stock, I just soldered screw terminals into the empty header . I have found that these units are quite annoying to keep running so far, board resets all the time , I guess time to overvolt..

EDIT

I do know the blue boards like emdje has the power is reversed I can verify that for sure

emdje

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Quote from: prossport on February 14, 2016, 12:22:01 AM

Why can not I run the image? I do not see it on the network. My raspberry Pi work good.

Do the green lights on the blade stop flashing after a while or do they continue? If they stop flashing it means the blades started to hash.
I don't know how you connected your blade to your network, but it might be the IP address is changed. With new versions of the software that sometimes happens with me too. I just login to the modem and see what devices are connected and find the IP like that.
If not try to hock up a monitor and find it using the command line:
https://learn.adafruit.com/adafruits-raspberry-pi-lesson-3-network-setup/finding-your-pis-ip-address

emdje

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Quote from: CartmanSPC on February 14, 2016, 07:02:08 AM

Can someone confirm? I think it is fairly obvious but wanted to make sure. If this is the case then a standard PCI-E connector will not work as that has the +12 V on the bottom or opposite the clip side:

I can confirm. When I changed out the power supply for a BeQuite one, I had to cut the cable somewhere and connect the plus to the minus and vice versa. I have an 'old' A2 with 8 chips (two blade version)
If that is different on the A2 mega's I don't know.

CartmanSPC

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First of all...so sorry about asking in this thread but thought it would be the best place where people would know.

I noticed an interesting distinction between the A2 and A2 Mega in regard to the power connectors the blades use and wanted to confirm with others.

The regular A2 (the one Emdje's old image works with) appears to have an Eight-Pin +12 V CPU Power Connectors on the blades. This means that +12v is on the top or clip side.

Example:

I realized this from the picture earlier in this thread:

Can someone confirm? I think it is fairly obvious but wanted to make sure. If this is the case then a standard PCI-E connector will not work as that has the +12 V on the bottom or opposite the clip side:

This is different than the A2 Mega. The A2 Mega comes with standard PCI-E connectors on the blades. I found it strange that the power supply provided with my A2 Mega had exactly six Eight-Pin +12 V CPU Power Connectors with cable lengths perfectly spaced for the location of the blades but were FORCE in to fit the PCI-E connector....now it makes sense. The power supply was build for the original A2 and they forced it to work with the A2 Mega.

Here is a picture of an A2 Mega with PCI-E connectors and the Eight-Pin +12 V CPU Power cables forced into them:

I guess it is important to know that +12 V on the original A2 (blue PCB) is on the top of the connector but +12 V on the A2 Mega (green PCB) is on the bottom? What would happen if they were reversed (if someone plugged in a PCI-E cable into the A2)? You can't physically plug in an 8-pin PCI-E cable into an Eight-Pin +12 V CPU Power Connector but a 6-pin PCI-E cable would fit.

I realized all this while working on replacing the PS in my A2....decided to delay until I get my voltmeter from work to verify.

prossport

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Why can not I run the image? I do not see it on the network. My raspberry Pi work good.

mjgraham

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I have a few but I could be wrong, I would like to know a bit more I see that it is running with the --hwreset , do you notice if the green LEDs on all the boards go off then one cycle of red flashing then green (not when you first turn it on, every time you run cgminer command)?, I know on my A2 boards the reset pin was not connected to the MCU on board so using --hwreset to reset them does nothing, instead they need a software reset like the official innosilicon binary does, while with a small amount of soldering it is fixable if your comfortable with that. Anyway I could be wrong . I actually have a real A2 on the way not just a bunch of hashing boards I bread together into a miner, I may be way off and just adapted to what worked. Also are they green boards or blue?

isbjorninn

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Hello, I am trying to use the new 5.0 for a2 mega (i think, bought second hand on ebay) and it starts, and then slowly dies.... i am trying to run it at super low level, 700mhz to see if the hw errors go away.. but to no avail.

starts fine after power-on boot,

Code:

[2016-02-03 05:18:02] Started cgminer 3.9.0
 [2016-02-03 05:18:02] Run Reset=1
 [2016-02-03 05:18:02] ST MCU hardware reset start
 [2016-02-03 05:18:06] SPI Speed 4000 kHz
 [2016-02-03 05:18:06] ST MCU - Enable (Pre-header)
 [2016-02-03 05:18:06] A2 = 700,24
 [2016-02-03 05:18:06] A2 PLL Clock = 700MHz
 [2016-02-03 05:18:06] A2 = 700,24
 [2016-02-03 05:18:06] A2 PLL Clock = 700MHz
 [2016-02-03 05:18:06] A2 = 700,24
 [2016-02-03 05:18:06] A2 PLL Clock = 700MHz
 [2016-02-03 05:18:06] A2 = 700,24
 [2016-02-03 05:18:06] A2 PLL Clock = 700MHz
 [2016-02-03 05:18:06] A2 = 700,24
 [2016-02-03 05:18:06] A2 PLL Clock = 700MHz
 [2016-02-03 05:18:06] A2 = 700,24
 [2016-02-03 05:18:06] A2 PLL Clock = 700MHz
 [2016-02-03 05:18:06] AUTO GPIO CS
 [2016-02-03 05:18:07] spidev0.0(cs0): Found 12 A2 chips
 [2016-02-03 05:18:07] Found chip 1 with 54 active cores
 [2016-02-03 05:18:07] Found chip 2 with 54 active cores
 [2016-02-03 05:18:07] Found chip 3 with 54 active cores
 [2016-02-03 05:18:07] Found chip 4 with 54 active cores
 [2016-02-03 05:18:07] Found chip 5 with 54 active cores
 [2016-02-03 05:18:07] Found chip 6 with 0 active cores
 [2016-02-03 05:18:07] Found chip 7 with 54 active cores
 [2016-02-03 05:18:07] Found chip 8 with 54 active cores
 [2016-02-03 05:18:07] Found chip 9 with 54 active cores
 [2016-02-03 05:18:07] Found chip 10 with 54 active cores
 [2016-02-03 05:18:07] Found chip 11 with 54 active cores
 [2016-02-03 05:18:07] Found chip 12 with 0 active cores
 [2016-02-03 05:18:07] Found 12 chips with total 540 active cores
 [2016-02-03 05:18:08] spidev0.0(cs1): Found 12 A2 chips
 [2016-02-03 05:18:08] Found chip 1 with 54 active cores
 [2016-02-03 05:18:08] Found chip 2 with 54 active cores
 [2016-02-03 05:18:08] Found chip 3 with 54 active cores
 [2016-02-03 05:18:08] Found chip 4 with 54 active cores
 [2016-02-03 05:18:08] Found chip 5 with 54 active cores
 [2016-02-03 05:18:08] Found chip 6 with 0 active cores
 [2016-02-03 05:18:08] Found chip 7 with 54 active cores
 [2016-02-03 05:18:08] Found chip 8 with 54 active cores
 [2016-02-03 05:18:08] Found chip 9 with 54 active cores
 [2016-02-03 05:18:08] Found chip 10 with 54 active cores
 [2016-02-03 05:18:08] Found chip 11 with 54 active cores
 [2016-02-03 05:18:08] Found chip 12 with 0 active cores
 [2016-02-03 05:18:08] Found 12 chips with total 540 active cores
 [2016-02-03 05:18:08] spidev0.0(cs2): Found 12 A2 chips
 [2016-02-03 05:18:08] Found chip 1 with 54 active cores
 [2016-02-03 05:18:08] Found chip 2 with 54 active cores
 [2016-02-03 05:18:08] Found chip 3 with 54 active cores
 [2016-02-03 05:18:08] Found chip 4 with 54 active cores
 [2016-02-03 05:18:08] Found chip 5 with 54 active cores
 [2016-02-03 05:18:08] Found chip 6 with 0 active cores
 [2016-02-03 05:18:08] Found chip 7 with 54 active cores
 [2016-02-03 05:18:08] Found chip 8 with 54 active cores
 [2016-02-03 05:18:08] Found chip 9 with 54 active cores
......etc

then I get a lot of invalid nonce errors...

and then it slowly dies when trying to reset the boards

Code:

[2016-02-03 05:19:32] Failed to reset bc from chip(cs4) 0
 [2016-02-03 05:19:32] Reinit board (cs4)
 [2016-02-03 05:19:32] Accepted 01d1b814 Diff 36K/64 BA1 4 pool 0
 [2016-02-03 05:19:32] Accepted 036af226 Diff 74/64 BA1 1 pool 0
 [2016-02-03 05:19:32] Accepted 037eb80e Diff 73/64 BA1 3 pool 0
 [2016-02-03 05:19:32] Accepted 018460f3 Diff 168/64 BA1 3 pool 0
(5s):64.33M (avg):64.75Mh/s (pool):59.76Mh/s | A:73536  R:0  HW:114  WU:54709.1/m^M [2016-02-03 05:19:32] Accepted 03372d18 Diff 20.4K/15360 BA1 2 pool 0
 [2016-02-03 05:19:33] Failure(cs4)(240): missing ACK for cmd 0x04
 [2016-02-03 05:19:33] ACK(cs4) timeout:cmd_RESET_BCAST-1.14901s
 [2016-02-03 05:19:33] Reinit board failure (cs4)

and when it has tried to reinit the boards, it just sits there..

if I try to restart cgminer manually this is the error:

Code:

[2016-02-03 05:42:45] Started cgminer 3.9.0
 [2016-02-03 05:42:45] Run Reset=1
 [2016-02-03 05:42:45] ST MCU hardware reset start
 [2016-02-03 05:42:49] SPI Speed 4000 kHz
 [2016-02-03 05:42:49] ST MCU - Enable (Pre-header)
 [2016-02-03 05:42:49] A2 = 700,24
 [2016-02-03 05:42:49] A2 PLL Clock = 700MHz
 [2016-02-03 05:42:49] A2 = 700,24
 [2016-02-03 05:42:49] A2 PLL Clock = 700MHz
 [2016-02-03 05:42:49] A2 = 700,24
 [2016-02-03 05:42:49] A2 PLL Clock = 700MHz
 [2016-02-03 05:42:49] A2 = 700,24
 [2016-02-03 05:42:49] A2 PLL Clock = 700MHz
 [2016-02-03 05:42:49] A2 = 700,24
 [2016-02-03 05:42:49] A2 PLL Clock = 700MHz
 [2016-02-03 05:42:49] A2 = 700,24
 [2016-02-03 05:42:49] A2 PLL Clock = 700MHz
 [2016-02-03 05:42:49] AUTO GPIO CS
 [2016-02-03 05:42:50] Failure(cs0)(20): missing ACK for cmd 0x04
 [2016-02-03 05:42:50] ACK(cs0) timeout:cmd_RESET_BCAST-1.2750s
 [2016-02-03 05:42:51] Failure(cs1)(20): missing ACK for cmd 0x04
 [2016-02-03 05:42:51] ACK(cs1) timeout:cmd_RESET_BCAST-1.3020s
 [2016-02-03 05:42:52] Failure(cs2)(20): missing ACK for cmd 0x04
 [2016-02-03 05:42:52] ACK(cs2) timeout:cmd_RESET_BCAST-1.2607s
 [2016-02-03 05:42:53] Failure(cs3)(20): missing ACK for cmd 0x04
 [2016-02-03 05:42:53] ACK(cs3) timeout:cmd_RESET_BCAST-1.4347s
 [2016-02-03 05:42:54] Failure(cs4)(20): missing ACK for cmd 0x04
 [2016-02-03 05:42:54] ACK(cs4) timeout:cmd_RESET_BCAST-1.2680s
 [2016-02-03 05:42:55] Failure(cs5)(20): missing ACK for cmd 0x04
 [2016-02-03 05:42:55] ACK(cs5) timeout:cmd_RESET_BCAST-1.2720s
 [2016-02-03 05:42:55] No any A2 board

No any A2 board

any ideas?

emdje

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Quote from: brobot_5000 on February 08, 2016, 02:37:29 PM

Hello i was wondering if i O/Cd my A2 (older black version) to 1280 or 1300mhz if i could do this WITHOUT volt modding my machine?
sorry if this is a silly question.

thank you and i appreciate any responses

There are no silly questions Wink

Technically you can run your chip at any frequency without voltmodding, only it will not run very well. It won't break at 1400 mhz, it will just result in a lot of hardware errors. Reducing those hardware errors requires voltmodding (increasing voltage to the chip). On the other side, if you want to run it at a much lower frequency your chip does not need that much voltage and you can reduce the voltage to the chip.

brobot_5000

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Hello i was wondering if i O/Cd my A2 (older black version) to 1280 or 1300mhz if i could do this WITHOUT volt modding my machine?
sorry if this is a silly question.

thank you and i appreciate any responses

nomoco

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Now the download works, thank you emdje for your work.
Everything is working fine for me (I have 8 blades of the old 8-chip design).

mjgraham

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I'll check it out tomorrow and see, I actually have been running mine at 1.0V here lately, definitely drops the HW errors, as for connectors I pulled them off and just put some screw headers on there and got rid of the molex plugs. I had a bad experience with those PCI-E cables a long time ago in the GPU days, sure the outside of the cable says 18 AWG and is the same diameter but inside the wire was like 24 AWG, nice Chinese cables.

EDIT:
I tired the new version it did not work with my boards, what had you changed to try and fix this?

emdje

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Quote from: nomoco on February 04, 2016, 08:17:26 AM

Hi emdje,

I would like to try your new software, but for download I need a password?

I misunderstood the info when I copied the link, I now added the right download link. Thanks for pointing it out!

emdje

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Quote from: nomoco on February 04, 2016, 08:17:26 AM

Hi emdje,

I would like to try your new software, but for download I need a password?

I see it sh*t sorry, will fix that.

nomoco

newbie

Activity: 26

Merit: 0

Hi emdje,

I would like to try your new software, but for download I need a password?

Topic: Ultra Under-overclock image for A2 Innosilicon by Emdje - V5.0 - page 5. (Read 79746 times)