03:00.0 RAID bus controller: Broadcom / LSI MegaRAID SAS 2208 [Thunderbolt] (rev 05) This is risky but if you have an extra RAID/SAS card to replace it then you can try this to get IT mode. https://docs.broadcom.com/docs-and-downloads/host-bus-adapters/host-bus-adapters-common-files/sas_sata_6g_p14/9207_8e_Package_P14_IT_Firmware_BIOS_for_MSDOS_Windows.zip https://docs.broadcom.com/docs/12350477 Get the sas2flash for Linux: https://doc........

This seems to happen in many different drivers but it happened more often in newer versions such as 530 vs 525. Then nvidia-modeset goes to 100% There are many reports of this appearing since driver 4.70 and I can confirm I've seen this in various machines. https://forums.de........