Question problem with crashing

[spartan3578]

recently i have had a really bed spell of tecnical issues with my pc everything from psu dying to gpu developing a over heating problem and hard drive faliure but my most recent issue is my pc partialy frezing
can move mouse click on open programs canot close any and unable to shutdown/restart with out fliping the power switch i have done all i can with out buying new parts
my system:
Device Name; The-Infuriator
motherbored: msi b450 gaming plus max
Processor; AMD Ryzen 7 5800X 8-Core Processor 3.80 GHz
Installed RAM; 32.0 GB kingston fury beast 3400 Mhz (xmp turned on in bios)
Storage; 932 GB SSD CT1000BX500SSD1, 466 GB SSD WDS500G3XHC-00SJG0 (boot drive), 7.28 TB HDD TOSHIBA MG10ADA800E, 2.73 TB HDD TOSHIBA HDWD130, 447 GB SSD KINGSTON SA400S37480G
Graphics Card; NVIDIA GeForce RTX 4060 Ti (8 GB) (new)
psu; 850W Corsair RMx Series RM850x (new)
System Type windows 10 pro 64-bit operating system, x64-based processor

i have reseated both my nvme and my cpu cleaning the conections with contact cleaner and repasted my cpu with artic mx-6 cup barly passes 85c
i have scaned my hardrive for both bad sectors and read and write speeds all is good
i have run stress tests on cpu and whilst it is underpreforming it oly looks to be age related and only slight and seamed stable
updated bios to the latest version
i have looked in event viwer and dont see anything other than when i swiched power off

i dont know what to do anymore im worried my cpu could be on its way out but it seams stable when testing and the nvme drive is still well within its expected life span and showing clear from issues

 

[Lutfij]

motherbored: msi b450 gaming plus max
What BIOS version are you on for your motherboard?

Storage; 932 GB SSD CT1000BX500SSD1, 466 GB SSD WDS500G3XHC-00SJG0 (boot drive), 7.28 TB HDD TOSHIBA MG10ADA800E, 2.73 TB HDD TOSHIBA HDWD130, 447 GB SSD KINGSTON SA400S37480G
Using Crucial's Storage Executive Manager as well as WD's Dashboard, see if the drive has any firmware updates.

psu dying
+
psu; 850W Corsair RMx Series RM850x (new)
If the latter PSU is new, what was the make, model and age of the older PSU? Probable that your older PSU took out the rest of your hardware.

You forgot to mention the make and model of your case and the orientation of the fans in said case.

 

[spartan3578]

motherbored: msi b450 gaming plus max
What BIOS version are you on for your motherboard?

Storage; 932 GB SSD CT1000BX500SSD1, 466 GB SSD WDS500G3XHC-00SJG0 (boot drive), 7.28 TB HDD TOSHIBA MG10ADA800E, 2.73 TB HDD TOSHIBA HDWD130, 447 GB SSD KINGSTON SA400S37480G
Using Crucial's Storage Executive Manager as well as WD's Dashboard, see if the drive has any firmware updates.

psu dying
+
psu; 850W Corsair RMx Series RM850x (new)
If the latter PSU is new, what was the make, model and age of the older PSU? Probable that your older PSU took out the rest of your hardware.

You forgot to mention the make and model of your case and the orientation of the fans in said case.

bios is 7B86vHN was updated about a week ago but was still expiriancing the issue before update so dont think that is causing any problems
all hardrives are in good order no errors and up to date

previous psu was 750W Corsair CX750M, Semi Modular, 80PLUS Bronze its main power rail from the main capacitor shorted to the psu case (with a lovely bang i might add) but everything seamed ok dident have any real issues with the system untill a few monthes after

(You forgot to mention the make and model of your case and the orientation of the fans in said case.) not sure if your joking but i have an MSI MAG VAMPIRIC 011C with 1 intake fan cooling hard drives then 3 intake 2 extraction plus ventilation holes on back of case and cpu cooler has 2 fans both in the same orientation blowing air to back of pc