Avalon ASIC users thread

[Sitarow]

Here is an update to Avalon unit #114 from Batch 1 running the new firmware.

Power Input 120v Ambient Room Temperature 20 °C/68.0 °F on a dedicated 15a Circuit

Hi

May i know which firmware is this? From strombom or the latest 0622 firmware? I am unable to see option for changing the overclock to anything above 300mhz in the official 0622 testing firmware

Thanks

As you can see from my photos above I am running 0622 firmware. For the purpose of these tests I have opted not to use direct USB from a laptop.

You will have to modify the /etc/init.d/cgminer file

I will give you the step by step instructions on how to modify existing entries in cgminer config file.

An easy way to do this is to ssh into your avalon after you upgrade the firmware to 0622.

Once you are logged in and at the prompt type cd /etc/init.d/

Next type vim cgminer

This will open up the vi editor. Use the arrow keys to navigate to the row you wish to change.

Now press i to get into edit mode.

once you are done in edit mode press esc it will get you back to command.

Finaly press : then w to write and q to quit

:wq

Here is a screen shot...



As you can see I opted to change the lower speed settings.

[johnyj]

Do you have AC? My avalon running temp is 47

No, just added enough thermal compound for each chip, and added an external blow fan to cool the bottom plate

[mtbitcoin]

As you can see from my photos above I am running 0622 firmware. For the purpose of these tests I have opted not to use direct USB from a laptop.
....

Thank you!

I was running the strombom modded firmware earlier which was working fine but running at 100% speed sounded like a mini jet engine 

[elasticband]

can i get a link to modified firmware which allows 325 + 350 in seetings

thanks in advance

[Sitarow]

can i get a link to modified firmware which allows 325 + 350 in seetings

thanks in advance

https://dl.dropboxusercontent.com/u/16881231/avalon_clone/firmware/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory_20130519b.bin

However the fans will run at 100%

Source

https://bitcointalk.org/index.php?topic=210186.msg2544524#msg2544524

Since the information about overclocking the Avalons seems to be out already and it's only a question about time when someone distributes a modified bit-file, I will post mine:

https://dl.dropboxusercontent.com/u/16881231/avalon_clone/firmware/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory_20130519b.bin

I have been running it for a month on a batch 1 unit. Happy mining

Edit: I should add that the fan PWM is locked to 100% in this firmware.

Note:

Just wanted to share this fact. People have invested intrest to get the maximum return on their investment and are not required to share the results with the public as was the case with strombom.

The fact that the cgminer team shared their results with the peeps the moment they were confident with the code is just another reason we should continue to support open source.

[thorvald]

I think the best solution will be the multiple options like the ones added by strombom in his build.
I`m running the 2 working modules from my aval at 355 with lower hw error rate then the build 519 at 43:300
Also the option to make the fun run in manual mode full speed or automatic mode is needed.
The unit with 15C air in stays at about 27C  at full speed (it worked at about 39C with all the previous builds, with )
Also the option to add lower modules then 2
I don`t know why but build 622 did not work (the hash rate was always 0  )

The option to donate some of the hash rate (%) to the developers was not added , this also must be added

[Sitarow]

I think the best solution will be the multiple options like the ones added by strombom in his build.
I`m running the 2 working modules from my aval at 355 with lower hw error rate then the build 519 at 43:300
Also the option to make the fun run in manual mode full speed or automatic mode is needed.
The unit with 15C air in stays at about 27C  at full speed (it worked at about 39C with all the previous builds, with )
Also the option to add lower modules then 2
I don`t know why but build 622 did not work (the hash rate was always 0  )

Sounds like the config settings did not take.

You may need to hard boot your unit after the update.

[thorvald]

it was hard booted
after any update is a must
the cgminer was stopped and started manually

[Bogart]

So how hot is too hot?

I'm running my batch 1 and batch 2 units at 350MHz now.  B1 seems to have settled on 47c for temp3, where B2 is at 52c now.  Ambient temperature here is somewhat high (28c).

[elasticband]

thank you very much! Currently running my batch 2 on 325 running around 80gh/s

[elasticband]

350 - 105092.67mh/s

94194.56

91662.63

[elasticband]

can butch 1 be updated also?

 the fan with the blue light struggles sometimes on one of my Avalon units, can anyone point me in the direction of where to find a replacement in the EU?

[melmo]

power consumption of my Avalon 2 at 350MHz is 890Watts  . Room is at 76F right now.

I get the same power draw (890watts) at 325 MHz and about a third of the shares are rejected.  I'm guessing that the power supply is a 650watt unit and can't handle the load.  I'm back to running at 300MHz until I get a new power supply.

[mtbitcoin]

I don`t know why but build 622 did not work (the hash rate was always 0  )

Try reapplying and Save the settings  under CGminer configuration and then hard power off/on

[Sitarow]

power consumption of my Avalon 2 at 350MHz is 890Watts  . Room is at 76F right now.

I get the same power draw (890watts) at 325 MHz and about a third of the shares are rejected.  I'm guessing that the power supply is a 650watt unit and can't handle the load.  I'm back to running at 300MHz until I get a new power supply.

Here is a before and after upgrade to a Corsair AX860i from the original Batch 1 Avalon power supply.

https://bitcointalk.org/index.php?topic=156323.msg1910169#msg1910169

Side by Side Comparison
Typical Batch 1 Avalon  before  upgrade, and an upgraded Batch 1 Avalon


Before                                             After

[loshia]

Guy's,
Just a question it drives me nuts.
While changing PSU of my Avalon batch one i removed blue fan connector and forget where it was. I connected it to the last fan connector on controler Now following happens

When avalon boots Blue fan is blowing inside like the rest fans
When cgminer starts BLUE fan start to suck - changing the rotation

This is driving me nuts

To be on the safe side i hacked cgminer to max out fan speed that is all.

Here is the patch (by the way - con pls add an option like avalon-fan-max or whatever so we can max out fan performance)

Does your blue fan suck hot air out or blow cold inside while you are mining? I did not pay attention to it but it is stupid fun to suck while other two pwm's blow



  temp_new = info->temp_sum / info->temp_history_count;

        if (temp_new < 35) {
-               info->fan_pwm = AVALON_DEFAULT_FAN_MIN_PWM;
+               //info->fan_pwm = AVALON_DEFAULT_FAN_MIN_PWM;
+               info->fan_pwm = AVALON_DEFAULT_FAN_MAX_PWM;
                info->temp_old = temp_new;
        } else if (temp_new > 55) {
                info->fan_pwm = AVALON_DEFAULT_FAN_MAX_PWM;
                info->temp_old = temp_new;
        } else if (abs(temp_new - info->temp_old) >= 2) {
-               info->fan_pwm = AVALON_DEFAULT_FAN_MIN_PWM + (temp_new - 35) * 6.4;
+               info->fan_pwm = AVALON_DEFAULT_FAN_MAX_PWM;
+               //info->fan_pwm = AVALON_DEFAULT_FAN_MIN_PWM + (temp_new - 35) * 6.4;
                info->temp_old = temp_new;
        }

[cryptograd]

can i get a link to modified firmware which allows 325 + 350 in seetings

thanks in advance

https://dl.dropboxusercontent.com/u/16881231/avalon_clone/firmware/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory_20130519b.bin

However the fans will run at 100%

Source

https://bitcointalk.org/index.php?topic=210186.msg2544524#msg2544524

Since the information about overclocking the Avalons seems to be out already and it's only a question about time when someone distributes a modified bit-file, I will post mine:

https://dl.dropboxusercontent.com/u/16881231/avalon_clone/firmware/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory_20130519b.bin

I have been running it for a month on a batch 1 unit. Happy mining

Edit: I should add that the fan PWM is locked to 100% in this firmware.

Note:

Just wanted to share this fact. People have invested intrest to get the maximum return on their investment and are not required to share the results with the public as was the case with strombom.

The fact that the cgminer team shared their results with the peeps the moment they were confident with the code is just another reason we should continue to support open source.

THANKS!!!

flashed sucessfully!

hashing stably @ 76Gh/s @ 325mhz @ slush's pool now
data center cooling on stock PSU
fans working great

[ewibit]

hi
is there any way (not to overclock!) to change frequency dynamic so that the fans run at max. 2000 rpm (because of the noise) in dependency of the (outside) temperatur
(summer is coming and cooling is more and more a trouble and with high frequency the noise is getting horrible..)
TIA

[dopamine]

Batch 1 users did you put new thermal paste? or are you running stock? I might want to add new thermal paste and maybe set the fan speed lower if I can get Temps under 45...

[goxed]

I'm using Strombom firmware stable @ 11h 11m 33s 83647.44 @ 350 on slush Suggested difficulty set to 32 my temps are alot lower 46

Fans are not set @ 100% Fan1 2400 Fan2 3960 Fan3 3720

How did you change the fan setting from 100% to auto? Thanks