Mining problem with rx570 when more than 3 cards are plugged in.

[yikyuho]

 The system boots fine and can mine with 3 cards but when I put 4,5 cards, the system

fails at booting with error code" Blinitializelibrary failed 0xc00000bb."

keyboard doesnt work as well. But all the fans run fine.

So far I've tried:

1. updating the bios to the latest version
2. complete reinstallation of windows 10
3. adding more RAM
4. disabling secure boot

My system's setting is:
Asrock B250 Pro4
EVGA1000W
some kaby or skylake celeron
8GB RAM
32GB ADATA SSD
5x 570 sapphire pulse.

[Sula91]

Encountered absolutely the same problem after trying to install fourth GPU. Updated BIOS - no effect

Maybe it a driver problem.



Running on
Asus prime z270A;
GPUs: Nitro rx470 4GB;
Windows 10, x64

[chohav]

Try when in bios selecting pci-e setting to Gen 1.

[Sula91]

Put everywhere Gen1 in bios, no effect

[dacinka]

Hi, this happened to me too, at the end it turned out to be problem with the wrong drivers, you have to use specific ones for this kind of operation.

[Sula91]

Could you describe a little bt more, what driver versions best suited which you're using etc, becase I've used currently latest ones, and previous

[fanatic26]

Run linux. Problem solved.

[Sula91]

Solution found (worked for me!):
Go to bios, preferably with one gpu and enable Above 4g decoding in Advanced options.
After connecting 4 GPUs OS launched fine

[rleonard85]

Solution found (worked for me!):
Go to bios, preferably with one gpu and enable Above 4g decoding in Advanced options.
After connecting 4 GPUs OS launched fine

DUDE.. awesome. i would have never found this on my own.

MSI z170a-pro 05-05-2017 updated bios
6 - xfx rx 580 GPUs
enabled above 4g decoding in advanced options
set PCIe to Gen2

[btcsqueeze]

Just in case someone else faces this:

I had this issue for days and followed all the suggestions with no success. It worked finally when I disconnected the on-board GPU and used one of the mining GPUs for the monitor. Had to re-install AMD drivers as only one was visible.

Hope this helps.

[GregorWar]

I got the same problem with my 6 gpu...5workin fine...6 dead...it's making me angry 

[pbuva]

1) Make sure you're running the latest BIOS!
2) Enable 4G
3) Set PCIe support to "Auto" - DO NOT MANUALLY SET TO GEN1. THIS CAUSES MAJOR ISSUES
4) Enable onboard graphics startup as first! I believe this is changing "PEG" to "IGD" or something in the Advanced BIOS
5) Plug your monitor into the ONBOARD graphics