That's because you're using the blockchain drivers. The new Crimson relive drivers with the Compute toggle that support the FCU don't work with Afterburner.

That was definitely not my experience when I did a clean install of Windows 10 v1709 and tried using the blockchain drivers after I couldn't get the Crimson Relive drivers that support the FCU to work with Afterburner.

In any case from a mining standpoint, there is no benefit in updating to v1709 if you are using the blockchain drivers, which don't support the FCU. That's why I'm sticking with v1703 until a stable release of the Crimson relive compute drivers is out.

BBT has run a number of live streams using the board. He was able to run 21 cards in Windows 10 using the latest Crimson Relive drivers and PCI-E splitters.

https://youtu.be/miUoqnUqk9M?t=6140

From his testing:

• 19+ GPU rig is possible in Windows 10
• A maximum of 13 AMD cards are supported
• AMD Drivers 17.10.2 required for more than 8+ AMDs
• Nvidia P106 mining cards are required for more than 13 cards

Since the blockchain drivers don't support the Creators fall update, there is no point in updating to v1709. The blockchain drivers install and worked for me on v1709, but it makes the Windows UI very unstable e.g. you can't select the Taskbar icons or Windows menu. If you want to stick with the blockchain drivers, it's best to stay on v1703 and defer the Windows feature updates in the Group policy editor until a stable version of the new Crimson Relive compute toggle drivers is out.

gpedit ==> Computer Configuration ==> Administrative Templates ==> Windows Components ==> Windows Update ==> Defer Windows Updates ==> Select when Feature Updates are received

There you can defer Windows version updates for up to one year.

While in the Group Policy Editor, you can also keep Windows Update from updating the the drivers.

gpedit ==> Computer Configuration ==> Administrative Templates ==> Windows Components ==> Windows Update and set 'Do not include drivers with Windows Update' to enabled.

Completely disabling Windows Update is unnecessary and opens your network to zero days.

The release notes for the Crimson Relive 17.11.1 driver that is out also mention the new drivers have a known issue with 12 GPU's in compute mode.

https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-17.11.1-Release-Notes.aspx

You can put 'TIMEOUT 10' above the miner command in the bat file to delay it for 10 seconds.

I keep the cards in an open air frame. About 4.75" apart is good for a dual tier frame or 3.5" apart for a single tier (center to center). I use a box fan to keep good air circulation and remove heat around the cards. That makes the card fans work more efficiently, so you don't have to turn them up high and prolongs the life of the fans.

2017 was a lot more profitable than when I left back in early 2015 . Hold on to your hats, the BTC wild ride is just getting started.

Afterburner v4.4.0 final is still not working with the Crimson Relive 17.11.1 drivers on Windows 10 Pro v1703. Everything is grayed out. Back to the blockchain drivers again.

https://www.guru3d.com/files-details/msi-afterburner-beta-download.html

https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-Beta-for-Blockchain-Compute-Release-Notes.aspx

Yes, I have  a -100 mV undervolt and -15% power limit set in Afterburner on Windows v1703.

https://bitcointalk.org/index.php?topic=1433925.msg23930733#msg23930733

Do a DDU to nuke all the drivers in safe mode and then try reinstalling them. I like to install the AMD drivers first and the Nvidia drivers last.

Yes, you can flash the Bios while the cards on on the riser. Here's a way to flash up to 8 at a time using AtiFlash in Powershell.

https://www.youtube.com/watch?v=Syaf6o1SEUc

I'm using the AMD blockchain drivers with Afterburner on Windows 10 Pro v1703 and it works fine. If you updated to the Windows 10 Fall Creators Update (v1709), that may be your problem as the blockchain drivers don't support the FCU.

Afterburner v4.4.0 final works fine with the blockchain drivers.

https://www.guru3d.com/files-details/msi-afterburner-beta-download.html

https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-Beta-for-Blockchain-Compute-Release-Notes.aspx

I can confirm the latest Afterburner v4.4.0 final is working with the blockchain drivers. The latest Afterburner does NOT work with the Crimson Relive 17.10.3 drivers in compute mode. Try removing the drivers in safe mode using DDU and then reinstall the drivers.

I believe the new batch is coming in at 19.3 GH/s and 1200 W.

https://youtu.be/a3xbkAE69BU?t=788

Zotac AMP Extreme are awesome cards. I have 1070 and it overclocks like a beast while running cooler than any card i've seen. It hardly ever goes to 60C. BBT did a review on the 1080 Ti

https://youtu.be/1gk8Dc0o4MA?t=5285

Pretty good deal for a ZOTAC GeForce GTX 1080 Ti AMP Extreme Core. Much better than an overpriced 1070 Ti

$700 w/code EMCBBRB29 and a free game.

https://www.newegg.com/Product/Product.aspx?Item=14-500-423

RX 570's already use ~40 W less than 580's. I don't think you could undevolt -200 mV and it would be stable. I use -100 mV for my Powercolor Red Dragon RX 570's and it's stable except for one card that I can only undevolt to -50 mV or it will cause the driver to crash and Windows to hang.

At this time IMO, you are better off putting the money in BTC. Wall Street is expected to invest $1B in BTC and other Blue Chip Cryptos and another $1B in BTC related companies before the end of the year. Richard Heart is calling for $20K BTC by Xmas. If that happens, you can take profit after the New Year and buy the same rig for <1/3 of the price with the money invested.

https://www.youtube.com/watch?v=MZtF3uOnjxQ

I can confirm the new Afterburner 4.4.0 final is NOT working with the 17.10.3 drivers. All overclocking parameters are grayed out. Went back to the blockchain drivers.

https://www.guru3d.com/files-details/msi-afterburner-beta-download.html