AMD Stuttering fix

I struggled with this for months, as you will see below all the things I've tried to stop the stuttering.
The fix for me was to to clear CMOS. I did a couple of BIOS updates, which reverted the BIOS settings to default, but looks like
There is a bug that the BIOS doesn't run properly CMOS is reset, I found this in a couple of threads lately so gave it try...

(Don't ask me how this works possible as I've passed all possible stress tests, doesn't make any sense)

I've cleared CMOS, booted in windows then got the pop up for the GCC, so said what the hell and installed it for the first time,
Used it to download the drivers it suggested (without crap Norton or RGB software).  After rebooting a strange thing happened, all devices in the Device manager were shown as unrecognized for like 30 seconds, after that my screen restarted. I rebooted just to be sure all the changes that happened were applied.

I went into the game and all stutters were gone.

After that, the only thing I've changed in BIOS was enabled XMP and C-States. Didn't touch anything else (like disable FTPM,iGPU etc..)
Currently on Windows 10 22H2 using 25.2.1 driver and chipset from Gigabyte website (Version 7 compared to version 6 that is on AMD website).

Tried booting into windows 11 (which didn't have any GCC installed) and it was also stutter free. This led me to the conclusion that GCC didn't do anything but the actual fix was the CMOS reset.
I uninstalled gigabyte control center and all crap it installed (not really good software)

**EDIT** 2 days after stable gaming with only XMP and C states enabled, I went ahead and enabled PBO with a 20 offset and so far no stutters!

My Specs:
Gigabyte B650M Gaming X AX rev 1.0
7800x3D
Pulse 7900GRE
32GB Corsair CMK32GX5M2B6000Z30 - EXPO ON and on QVL list!
850W RMx
SN770 as boot and SN850 as game storage
Latest BIOS - F33a Checksum: A792

Basics

Temps are solid (monitored during stress test OCCT)
PSU - power cables to GPU are not daisy chained
Not using MSI afterburner
Not using a riser cable

BIOS

Disabled PBO
Disabled XMP
Disabled SAM/4G Decoding
Disabled PSS
Enabled/Disabled C-States (change from AUTO)
Disabled/enabled X3D Turbo
Disabled SMT
Disabled fTPM/TPM/Pluton/All security settings
Disabled/enabled spread spectrum
Disabled SVM (all virtualization)
Disabled L1/L2 Pre-cacher
Disabled XHCI Hand off
Disabled CPU boost (fixed clock to 4.2 GHz)
Disabled iGPU
Disabled HD Audio and LAN (tried WiFi only)
Set PCIe GPU to Gen4 and tried Gen3
Set manual PPT/EDC

Raised SoC V to 1.3
Raised VDDP to 1.4
Spend days tweaking FCLK/RAM timings (learned a lot though!)
Disabled/enabled memory contex restore
Disabled/enabled PowerDown mode

Windows

All removals are done using Revo uninstaller
Clean install Windows 11, also tried Windows 10.
No windows update run to install any drivers that could cause conflicts
No bloatware like Gigabyte control centre installed
Run CTT windows debload (disabled useless services)
Changed the max cpu% from 100% to 99% in power settings
Installed MSI Afterburner just to disable power monitoring,then removed
Disabled steam overlay
Unparked all cores
Disabled HAGS
Disable Control Flow Guard
Tried all different power plans, but please use OPTIMIZED setting for AMD, perfomance plan wont allow the CPU to boost!
Tried Bitsum process lasso
Disabled GameBarPresentWriter
Disabled GameMode/removed Xbox stuff
Run MPO Fix and disable ULPS
Disabled HAGS
Disabled HDR
Disabled variable refresh rate
MSI Util V3 - GPU in MSI mode
Disabled full screen optimizations
Run steam as admin
Reduced mouse pooling rate to 250/500 Hz
Run Latencymoon and no driver spikes detected
Enabled/Disabled HPET
Disabled Microsoft Device Association Root Enumerator
Disabled fastboo

AMD

Safemode removed all drivers with DDU
Tried different chipset drivers (Last years, from AMD Website, and gigabyte)
Rolled back to 24.8.1
Changed registry for Shader cache to always ON
Enabled GPU Scaling
Disabled ULPS
Applied MPO Fix
Disabled all vsync including AMD freesyc (disabled in monitor OSD as well)
Radeon minimal install with all settings off
Tried limit min/max core clock in full driver version to be 500 Mhz within eachother
Tried undervolt CPU

Extras

Updated firmware of my SSDs (didn't even know this was a thing)
Unplugged everything except mouse and keyboard
Unplugged all header connections from MB (front panel audio,usb 3.0 etc except power switch!)
Checked all connections - re-seated GPU,RAM,SSDs, even CPU with new thermal paste!
Tried only 1 RAM stick (1 by 1,first default bios settings, then disabled a bunch of stuff)
Run Memtest with both sticks, then 1 by 1
Checked that GPU is running in 16x Gen3/4 depending on the BIOS settings I've tried
Bought super duper Display port cable, also tried HDMI cables (swapped with friends)
Latencymon is all good, no spikes from any drivers during stutters