Issue with Intel Arc A750 GPU and Monitor Not Reaching Advertised 100Hz Refresh Rate

[xindid]

Hi, I'm experiencing an issue with my Intel Arc A750 GPU and monitor refresh rate. My monitor is advertised as supporting 100Hz, but I'm only able to select up to 75Hz in Windows settings, Intel Arc Control, and my BIOS. Here's a full breakdown of my setup and what I’ve tried so far:

My System Specs:

• GPU: Intel Arc A750

• CPU: AMD Ryzen 5 5700X

• PSU: 650W

• Monitor: High-vision 100Hz monitor

• Cable: Using a HDMI cable (confirmed working with other setups)

• OS: Windows 10/11 (tested on both)

Issue:

• Monitor only displays options up to 75Hz instead of 100Hz.

• Intel Arc Control, Windows display settings, and BIOS all show a maximum refresh rate of 75Hz.

• Monitor does work at 100Hz when tested with another PC using a different GPU (NVIDIA), confirming the issue is not with the monitor or cable.

Troubleshooting I’ve Tried:

• Updated Intel Arc GPU drivers (latest version as of April 2025).

• Swapped cables (both HDMI and DisplayPort).

• Checked and updated monitor drivers (if applicable).

• Tested the monitor on another PC—successfully runs at 100Hz.

• Clean installed drivers using Display Driver Uninstaller (DDU).

• Tried both Windows 10 and Windows 11.

Notes:

• This seems to be a compatibility issue specific to the Intel Arc A750 and this monitor.

• I suspect it could be EDID recognition or a driver-side limitation.

Has anyone else experienced this issue with Arc GPUs and high refresh rate monitors? Any suggestions or workarounds to force 100Hz or improve compatibility?

Here is the previous thread where I attempted to solve this issue but unfortunately failed and due to busy schedule i was not able to reply in time which made the thread becoming unmonitored-
https://community.intel.com/t5/Graphics/Issue-with-Intel-Arc-A750-GPU-and-Monitor-Refresh-Rate/td-p/1649490

Thanks in advance!

[TheExpertGuy]

HDMI can sometimes have compatibility issues with higher refresh rates. DisplayPort generally offers better support for high refresh rates and might resolve the issue... Use a tool like CRU to manually set the refresh rate. This can sometimes bypass limitations set by the GPU or drivers. As you suspected, the issue might be related to EDID recognition. Ensure that your monitor's EDID is correctly recognized by the GPU. Tools like CRU can help with this...

but If you haven't already, try using a DisplayPort cable instead of HDMI. Download and use Custom Resolution Utility to manually set the refresh rate to 100Hz. Some monitors cannot be set to the maximum native resolution

[xindid · Accepted solution]

Thanks for the tip — it worked perfectly!

I used Custom Resolution Utility (CRU) to manually add a new detailed resolution at 1920x1080 @ 100Hz. The key detail was selecting CVT-RB (Reduced Blanking) in the timing options since "Automatic - LCD standard" wasn’t available.

Steps I followed:

1. Opened CRU and selected my monitor.

2. Added a new detailed resolution: 1920x1080, 100.000 Hz.

3. Set timing to CVT-RB (Coordinated Video Timings – Reduced Blanking). ( Go for "Automatic - LCD" if available)

4. Applied changes and ran restart64.exe from the CRU folder.

5. Set 100Hz from Windows' advanced display settings.

This bypassed EDID limitations and now I'm running smoothly at 100Hz. Hope this helps others facing similar issues!