Rebar won't Turn on

[Tyler6251999]

When I go to the BIOS it and I turn off the CSM support. I boot up and it wont give me a display out but I can hear windows boot up in my headset.

[DeancR_Intel]

Hi Tyler6251999,

Thank you for contacting Intel Technical Support regarding your Resizable BAR (ReBAR) display issue. I understand that when you disable CSM support in BIOS to enable ReBAR, you lose display output but can still hear Windows booting through your headset.

To better assist you with this ReBAR configuration issue, I need to gather some system information. I have two options for you:

Please download and run the Intel System Support Utility (SSU) to generate a comprehensive system report:

• Download SSU here: https://www.intel.com/content/www/us/en/download/18377/intel-system-support-utility-for-windows.html
• Run the utility and attach the generated report to your response

If you're not comfortable running SSU, please provide the following system specifications:

• CPU model and generation
• GPU model (both integrated and discrete if applicable)
• Motherboard make and model
• BIOS version
• RAM configuration
• Operating system version

Additionally, please let me know:

• What monitor are you using (make, model, and connection type - HDMI, DisplayPort, etc.)?
• What games are you planning to play that would benefit from ReBAR?

This information will help me understand your system configuration and provide targeted troubleshooting steps for your ReBAR display issue.

I look forward to your response so we can resolve this together.

Best regards, 

Dean R. 

Intel Customer Support Technician 

[Tyler6251999]

I have a SANSUI monitor 24 inch curved 160hz

I have a Ryzen 5 5500

I attached the scan file.

I'm manly playing arc raiders  

[Tyler6251999]

I have a SANSUI monitor 24 inch curved 160hz

I have a Ryzen 5 5500

I attached the scan file.

I'm manly playing arc raiders  

[DeancR_Intel]

Hi Tyler6251999,

Thank you for providing the SSU scan file and additional system information. I can see you have a Ryzen 5 5500 system with a SANSUI 24-inch curved 160Hz monitor, and you're looking to enable ReBAR for Arc Raiders gaming.

I've reviewed your system configuration and understood the display output issue when disabling CSM support. Before I provide specific troubleshooting steps, I need to gather some additional information:

1. Have you tried connecting your monitor to different display ports on your graphics card (if you have multiple HDMI/DisplayPort outputs available)?
2. Was your system working normally before attempting to enable ReBAR? When did you first notice this issue?
3. What specific changes or events triggered you to try enabling ReBAR? Did you recently update BIOS, install new hardware, or make other system modifications?
4. What cable are you currently using to connect your SANSUI monitor (HDMI, DisplayPort, etc.)?

This information will help me understand whether this is a ReBAR-specific configuration issue or if there are other factors affecting your display output when CSM is disabled.

Best regards,

Dean R.

Intel Customer Support Technician

[Tyler6251999]

• I have tried using display Port and HDMI they both have the same result 
• I just built this pc and when i booted it up rebar was not activated. so I tried to turn it on so thats when I found it was not working.
• videos I watched on this gpu said to turn on rebar so in was trying to get it to turn on. 
• i am using a dislplay port but i was using an hmdi but they both wont work when i turn csm off. 

[DeancR_Intel]

Hi Tyler6251999,

Thank you for providing the additional troubleshooting information. I can see that you've tested both DisplayPort and HDMI connections with the same result, and this issue occurred immediately when trying to enable ReBAR on your newly built system.

I understand you're following recommendations to enable ReBAR for your GPU to optimize gaming performance in Arc Raiders, but the display output loss when disabling CSM is preventing you from completing this configuration.

Based on your system configuration and the specific nature of this ReBAR/CSM compatibility issue, I need to check this internally to provide you with the most accurate guidance for your Ryzen 5 5500 system.

I will get back to you once I have the information available regarding the proper ReBAR configuration steps for your specific hardware combination.

Thank you for your patience while I check this matter.

Best regards,

Dean R.

Intel Customer Support Technician

[DeancR_Intel]

Hi Tyler6251999,

Thank you for your patience while I reviewed your ReBAR configuration issue. Before I provide specific troubleshooting guidance, I need to understand your requirements better.

Could you please clarify why you need to disable CSM support? Does Arc Raiders or any other game specifically require CSM to be disabled for optimal performance?

Understanding the specific reason for disabling CSM will help me provide the most appropriate solution for your gaming needs while ensuring your display output functions properly.

Best regards,

Dean R.

Intel Customer Support Technician

[Tyler6251999]

All the videos I watched on turning on rebar said that CSM had to be turned off. but even with it on it still won't turn on rebar.