A8 Parts Forum - Crypto currency mining

Haven't found any or tested it myself yet but there's a discussion thread on BCT here:
https://bitcointalk.org/index.php?topic=5036844.0

One poster seems to suggest they're using it to overclock to 15TH but at the price of greater power consumption. There's mention of 'AsicBoost' too, although someone just posted a link to this Bitmain announcement in the thread today:
https://blog.bitmain.com/en/new-firm...ation-firmware

ainarssems

23rd October 2018 05:12 AM

Quote:

Originally Posted by moltuae (Post 145668)

This looks interesting ...

https://bitcoinmagazine.com/articles...ning-firmware/

https://braiins-os.org/

Good find, looking forward for further development, ATM probably not much sense installing it.

Quote:

Originally Posted by ulfilias (Post 145717)

Indeed.......Any stats on how it performs against the stock set-up?

I guess the simple answer is the same as it is running the same bitstream and same miner, only thing you get is overclocking possibility on autotune miners. I have not tried this one and it does not seam worth messing around with SD card.

I have tried Dollemizer which offers overclocking and voltage setting but only all hashboards at the time, not individually. My autotune S9 13.5TH is automaticallyselecting 870, 880 and 890mV for hashing boards. With Dollemizer I could not reduce voltage below 890mV without loosing hashrate. At 890mV I could overclock it above 14TH but power usage was going up considerably as well so I was not even trying to see how high can it go. There is also devFee for Dollemizer 4 min mining for developer then 200 min for you and then repeats again. So I switched back to stock firmware.

ainarssems

23rd October 2018 05:15 AM

Quote:

Originally Posted by moltuae (Post 145718)

Bitmains download page does not want to work but I am going to try their ASICBoost firmware as soon as I can. AsicBoost also requires pool support, not sure if it's the same from pool perspective for Dragonmint and Bitmain or if Bitmain require different soft for it on pool side. I suppose braiins can now integrate Bitmain bitstream in their OS as well but for me it needs voltage control as well and separate voltage/clock settings for each board.

MikkiJayne

23rd October 2018 09:44 AM

1 Attachment(s)

I'm selling my Vega rig if anyone is interested:

2x Gigabyte and 1x Sapphire Vega 56s all running the Gigabyte 56 bios
Asrock H110+ mining motherboard
Intel low-power CPU
Ram
M3 sata drive
800W psu
Mining rig frame

Since the Monero algo change to Cryptonight v8 its using 600W for 5.4MH/s which covers its electricity costs on Nicehash at 13p a unit. Since v8 has introduced some instability compared to v7, I might as well just run the central heating instead. I'm sure the various developers will sort the instability out in due course, but I'm done babysitting it.

The two Gigabyte cards have been fed cold air from the loft. The Sapphire was just running on ambient. They all run happily at ~65 degrees with auto fan control on.

Its running Windows 10 Pro 1607 with updates disabled.

I'd like to see £1200 for it.

http://forum.a8parts.co.uk/attachmen...1&d=1540287689

ainarssems

23rd October 2018 11:05 AM

Quote:

Originally Posted by ainarssems (Post 145729)

I have given a try to the new S9 firmware, on viaBTC there are no changes to report, on Antpool speed is about the same but power consumption is down by 180-200W.

ulfilias

24th October 2018 10:45 AM

Quote:

Originally Posted by ainarssems (Post 145732)

I have given a try to the new S9 firmware, on viaBTC there are no changes to report, on Antpool speed is about the same but power consumption is down by 180-200W.

Is that the Brains of Antminers own??

I'm getting tempted to turn on the S9. The office could use some heating and I could replace my older S7 with it and get back in the game - I've held all i made, but power costs and hardware costs probably put me quite down as things go!

ainarssems

24th October 2018 12:12 PM

Quote:

Originally Posted by ulfilias (Post 145754)

It's official Bitmain's.

MikkiJayne

25th October 2018 01:28 PM

The cats were cold so I made this to restart Cast-XMR every hour which will catch and reset an unresponsive GPU and avoid dead time.

Code:

$application1 = "C:\mining\cast_xmr-vega\switch-radeon-gpu.exe"

$params1 = "--hbcc=off autorestart"

$application2 = "C:\mining\cast_xmr-vega\cast_xmr-vega"

$params2 = " -S cryptonightv8.eu.nicehash.com:3367 -u username -G 0,1,2 -O 1 --nicehash -I 7 -R --remoteport 7777 --fastjobswitch --algo=10 --forcecompute --ratewatchdog"

$sleepTime = 3600

$i = 1



while ($i = 1){

    Write-Host "Starting mining"

    Start-Process $application1 $params1 -PassThru

    $process = Start-Process $application2 $params2 -PassThru



    Write-Host "Waiting " $sleepTime "seconds"

    Start-Sleep -Seconds $sleepTime



    if(!$process.HasExited){

        Write-Host "Killing mining"

        $process.Kill()

    }

    else{

        echo "Mining had already ended"

    }



    Start-Sleep -Seconds 2

}

Powershell sits there counting while Cast is running. After an hour it kills and restarts the process. Repeat ad infinitum.

The rig is still for sale, but it might as well keep the cats warm until then +++

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