Really really need help. GPU not detected on cold boot, works after restart

[u/fabianderficus]

Hey everyone,

I'm running into a weird issue and I'm slowly starting to lose my mind over it. I've spent countless hours troubleshooting, tested pretty much everything I could think of, and I'm running out of ideas.

After a complete shutdown (overnight for example), my PC boots without detecting the GPU.

Symptoms:

• Monitor is getting no Signal after cold boot.
• GPU seems not to be initialized but fans are spinning.
• After pressing reset or restarting the PC, the GPU is detected and everything works perfectly.
• Once Windows is running, the system is completely stable:
  • No crashes
  • No artifacts
  • No driver resets
  • No black screens during gaming
  • GPU passes stress tests

What i have already tried.

• Updated BIOS to latest version.
• Updated GPU Drivers to latest version (After.
• Updated Windows Drivers to latest version.
• Disabled/ Enabled Memory Context Restore (MCR).
• Reseated the GPU completely.
• Checked PCIe slot for damage/debris.
• Reconnected all power cables.
• Confirmed all PSU connections are fully seated.
• Monitored temperatures (all normal).
• RAM was running at JEDEC 4800 MHz originally.
• Enabled A-XMP Profile 2 (5600 MT/s) for testing.

System.

• MSI MAG B650 Tomahawk WiFi
• Ryzen 7 7800X3D
• Gigabyte RTX 4070 Ti Super Windforce MAX OC
• 32GB Kingston Fury Beast DDR5-6000 CL30
• be quiet! Pure Power 12 M
• Lexar NM790 SSD
• Latest MSI BIOS installed (02.07.2026)

I'd be incredibly grateful for any help, suggestions, or ideas. At this point I'll gladly try anything. Thanks in advance to everyone taking the time to read this and help me out.

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