[COLOR=#000000]An update:

I tried to boot from WinPE, this also blue screens. I also tried to boot into [/COLOR][URL="https://m.majorgeeks.com/files/details/sergei_strelecs_winpe.html"][COLOR=#000000]Sergei Strelec's WinPE[/COLOR][/URL][COLOR=#000000] but this still led to a blue screen after it was done loading the files. I'm sharing this in case anyone else out there is facing a similar issue, but this method didn't work for me.

I'm starting to think its a motherboard fault, but the board looks fine on inspection, and I'm struggling to find the specific fault....

Hey,

So I've tried this and it's the same issue - BSOD still appears. I've tried it with the NVME drive forcibly booting into both safe mode and regular mode with the Lenovo drivers pre-installed, hence why I'm thinking it's an issue with the BIOS potentially.

Still unsure though!...

Hi Diego,

Thanks for your reply.

I've had a look and the connections seem fine - MEMTEST returns all positive too, and so I don't think its a RAM issue necessarily. I'm still sceptical about whether its a BIOS issue (because the flashed BIOS version is 60, whereas the EC version is 65), but I'm still looking into how I can resolve this issue specifically. When I flash the 65 bios to the computer, it doesn't boot up at all, so it's very strange!

Thank you though....

Another important thing to add just in case anyone's interested:

No USB running any OS (other than diagnostics tools like MEMTEST or the Lenovo UEFI Diagnostics which both return the hardware components as all passing) will boot.

Windows boots into a BSOD with a Windows 11 or 10 bootable USB drive and no SSD plugged in. With an SSD plugged in, same outcome.
Linux returns a similar equivalent to the BSOD error across multiple distributions.

I was wondering whether the disparity between the BIOS and EC string (the five version difference) is normal, or...

Hi, so this was interesting because I had plugged the SSD into a Dell XPS to turn off the dGPU (it's not available through the BIOS, it has to be done via the NVIDIA Control Panel in Windows), and so now it should be running without the dGPU, but the BSOD still remains.

On the second point, it could be that, yeah, but I guess the question would be how would one identify the badly soldered BGAs, is there a test that I can do to figure that out? Just curious so thought I'd ask!

Thanks....

Hey, thanks for the response.

MEMTEST runs perfectly and passes both RAM sticks. I've put the SSD into both slots, still has the same issue.

It's a real mindboggler!...

Hi everyone,

A few details about the laptop itself:

Name: Lenovo Legion 5
Model: 15ACH6H (according to its back cover details) / 17ACH6H (according to the BIOS Menu)
BIOS Version: GKCN60WW
EC Version: GKEC65WW
Serial Number: PF39AQ7Z
Board Model: NM-D562 Rev 3.0
RAM: 16GB Installed, DDR4 (brand new)
NVME: 500GB NVME drive (brand new, installed Windows 10 onto it for testing purposes and tested on another laptop (a dell XPS) works perfectly fine and boots in)

I bought this laptop recently from eBay as a faulty device....