B460M Steel Legend - No video when using CSM

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   I'm building an Unraid server that requires CSM to be enabled to boot into its GUI mode.

When enabling CSM however I get no video output at all from both the Intel i5 10500 integrated graphics or from my Nvidia 1050TI. I have to clear the CMOS to restore video.

I have tried the onboard HDMI and the GPU HDMI and DVI. I also upgraded the motherboard firmware to 1.40.

If anyone can shed some light on the reason this happens and how I can solve it, that would be great!

Thanks!

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joshkrz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Aug 2020 Status: Offline Points: 4	Post Options Post Reply Quote joshkrz Report Post Thanks(0) Quote Reply Topic: B460M Steel Legend - No video when using CSM Posted: 10 Aug 2020 at 12:22am
	I'm building an Unraid server that requires CSM to be enabled to boot into its GUI mode. When enabling CSM however I get no video output at all from both the Intel i5 10500 integrated graphics or from my Nvidia 1050TI. I have to clear the CMOS to restore video. I have tried the onboard HDMI and the GPU HDMI and DVI. I also upgraded the motherboard firmware to 1.40. If anyone can shed some light on the reason this happens and how I can solve it, that would be great! Thanks!

joshkrz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Aug 2020 Status: Offline Points: 4	Post Options Post Reply Quote joshkrz Report Post Thanks(0) Quote Reply Posted: 10 Aug 2020 at 4:51pm
	So I have managed to get video to display when CSM is enabled. I set all of the CSM options to disabled while keeping CSM itself enabled. Not sure how helpful it was but I also set the boot image to Disabled at the same time so it now displays POST messages. I notice I can only get video to display via the GPU even though the primary GPU is set to Onboard and the iGPU Multi is set to Enabled. I only need CSM enabled temporarily so it isn't a huge issue.