L5pro randomly freezing or restarting

[rotund kindle]

Model:
Lenovo Legion 5 Pro 16ACH 82JQ009YIV

Describe the issue:
I decided to do a fresh windows reinstall and before I started I cleaned the laptops openings with an electric air blower (which I've used several times before with no problems). I made a usb installer with the windows media creation tool and began installing but the laptop would freeze or restart during during the installation. Iended up managing to install but the laptop still freezes or restarts at a seemingly random but frequent rate.
I'll mention that when in the bios the laptop doesn't freeze or restart.

What have you tried already?:
reinstalled windows using rufus with a windows ISO
I tried installing windows 10
Opened the laptop and looked for anything obvious disconnected or broken
Removed and reseated the 2 memory sticks
Removed the secondary SSD

When did it start producing the issue:
Friday august 23

Any ideas on what the prob could be?

[half warren]

What prompt you to reinstall windows in the first place? Was there any failure of sorts?
Seems like ssd failure to me, try installing windows on another ssd instead and see if issue still persist.

[balmy raptor]

AMD R7 5800H?

Try to run prime95 to see if it still restarts or freeze. If the random restart doesn't trigger you could have the same problem as me.

The processor doesn't behave normally when idle or there is little to no load. You will need to contact lenovo if your unit is still under warranty.

[rotund kindle]

No failures or anything. Everything hardware wise ran great, just felt it was time for a fresh uncluttered OS install. That's why I feared I might have busted something with the air blower....

[rotund kindle]

Yeah that's the CPU. I'll try that but it was fine for a few years until last friday.
Now that you mention it tho, I seem to remember restarting here and there along time ago but I guess it got fixed somewhere along the way.

[half warren]

Maybe but it is hard to speculate at this point.
You should really try reinstalling windows on another ssd and use that as a boot drive instead.
I highly suspect there is something faulty with your current boot drive which cause the random freezes and restart.

[rotund kindle]

I removed the boot drive ssd and installed a different one on a different slot but it still kept restarting during the windows install.

[half warren]

Hmm, not sure if there is something wrong with the recovery media you are using.
Might worth to recreate the installation media or use lenovo recovery media instead.
It might also be worth to give ubuntu a try by booting it off a usb and see if there are similar crash or freeze.
https://ubuntu.com/download/desktop

[rotund kindle]

I've tried 2 different usb sticks both with windows media creation tool and rufus and windows iso plus a windows 10 iso with rufus.
I can't seem to get the lenovo recovery media (see image). Am I doing it right?
I will try ubuntu. Thanks a lot.

[rotund kindle]

I booted into ubuntu and it's still crashing and freezing.

[half warren]

At this point it seems like a hardware failure to me.
It is a big problem if you can't even boot into OS and have stability since you can't run any stress test on it.
Do you still have warranty?

[rotund kindle]

Warranty just ran out in june. You think it's something that a local computer tech might be able to fix?

[half warren]

Well it depends on the skill of the technician and the problem of your laptop.
If its a simple one then yes they will likely be able to diagnose and fix and if its anything more serious then you would need someone skilled who can do micro soldering, reballing etc.
This is on basis that the laptop is fixable btw.
Anything that requires a motherboard replacement would mean it will be better off for you to buy a new unit instead.