Freeze on BIOS load animation and on Restart/Shut Down from Windows

[al.poplavsk15a602e5]

Dear all

This is my first desktop PC that I set up on my own.

System:
MSI MAG B650 Tomahawk WiFi (MS-7D75)
Ryzen 7 9800X3D
TR Peerless Assassin 120 SE
Viper Venom 2x16 GB DDR5 6000
NVIDIA GeForce RTX 5070 Ti
Samsung 990 Pro 2 TB
be quiet! Pure Power 13 M 750W
Windows 11 Home 24H2 (build 26200)

Issue:
My PC is fully stable during normal Windows use and AAA gaming, but it consistently has problems only during startup/shutdown/restart transitions:

• Cold boot: the first boot always freezes on the MSI motherboard logo / spinning loading animation
• Windows restart/shutdown: Windows closes apps, reaches the very late stage of restart/shutdown, then freezes hard with the hardware still powered on
• Pressing the Reset button makes the next boot succeed
• I have also had USB-related oddities, including:
  • wireless mouse lag
  • freezes when trying to change USB power settings
  • freezes in the same style when interacting with a USB device in Device Manager

So the system is stable under load, but unstable during boot / restart / shutdown / device-power transitions.

What has already been tested:

• Windows Memory Diagnostic: no errors
• EXPO: disabled
• Fast Startup: disabled
• Hibernation: disabled
• SFC /scannow: clean
• DISM /RestoreHealth: clean
• Pagefile: enabled, system managed
• No BSOD, BugcheckCode = 0
• Kernel-Power 41 appears, but only as a consequence of forced reset
• WHEA-Logger gave no useful clue
• DCOM 10010 traced to Microsoft.WidgetsPlatformRuntime, likely unrelated
• Safe Mode: boot/restart works normally
• Clean boot: did not help
• Moved keyboard/mouse from USB receiver to Bluetooth: no change
• Disabled Memory Integrity / Core Isolation for testing: no change
• Updated to the latest stable MSI BIOS (March 2026): no change
• Disconnected front USB-C and front USB 3.x headers from the motherboard: no change
• Tested with one RAM stick only in the correct slot: no change

At this point I suspect something around: USB/Device Manager motherboard power management issues, motherboard / chipset / USB controller / ACPI-power path

• or less likely, some physical build/mounting issue as this was my first - I also had issues installing CPU fan screwing the bolts causing it to move above the CPU marked with thermal paste a lot, but again - I believe this would have popped up during intensive AAA gaming - and it had not - games are smooth as hell

Has anyone seen this behavior specifically on B650 Tomahawk + Ryzen 9000 / 9800X3D, where first cold boot freezes but reset makes the next boot work, and Windows restart/shutdown freezes at the very end?

 

[citay]

Components look pretty well-matched, common, and high-quality. What external devices are connected? You should try with just keyboard and mouse, nothing else. If you can borrow a wired KB/mouse, that might also be a good idea.

Check in the BIOS if you have a setting "ErP Ready" and enable that for a test.