[coreboot] Debian doesn't boot after firewire card insertion

[d.verdi]

Hello,
recently I add to my asus kgpe d16 a pci-e to firewire card adapter, a sunix FWB3400T; after that, my Debian distro previously installed doesn't boot anymore, it boot partially but at one point it show "hdaudio no AFG or MFG node found" and then the PC restart itself.
I have also installed a Fedora 33, which starts without problem, so does anyone have some suggestion to make Debian boot again?

The configuration is this sunix adapter, another sunix to parallel adapter (PAR6408A) and an nvidia quadro P2000 as graphic card; 2 opteron 6282SE and 96 Gb ram of hynix ECC registered memory ( btw, I tried with 128 gb but machine doesn't starts).

Thanks a lot
Dav

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