LockDown Posted October 13, 2017 Share Posted October 13, 2017 Im confuse about CSM in bios. I dont know when to enable or disable it. Info would be great Link to comment Share on other sites More sharing options...
LockDown Posted October 14, 2017 Author Share Posted October 14, 2017 Up... please Link to comment Share on other sites More sharing options...
Loloflat6 Posted October 14, 2017 Share Posted October 14, 2017 May this help you : Set the "Secure Boot" option to "Off" and the "UEFI Boot" options to "CSM Boot" so that the system can boot from an external device or non UEFI HD or devices. 1 Link to comment Share on other sites More sharing options...
Cyberdevs Posted October 14, 2017 Share Posted October 14, 2017 To ensure backward compatibility, most UEFI firmware implementations on PC-class machines also support booting in legacy BIOS mode from MBR-partitioned disks, through the Compatibility Support Module (CSM)that provides legacy BIOS compatibility. In this scenario, booting is performed in the same way as on legacy BIOS-based systems, by ignoring the partition table and relying on the content of a boot sector.[36] BIOS-style booting from MBR-partitioned disks is commonly called BIOS-MBR, regardless of it being performed on UEFI or legacy BIOS-based systems. Furthermore, booting legacy BIOS-based systems from GPT disks is also possible, and such a boot scheme is commonly called BIOS-GPT. https://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface 3 Link to comment Share on other sites More sharing options...
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