Hello, I have a ROG G752VY that is 3 years old. Worked fine mostly, sometimes did some random freeze, mostly when a USB storage device was attached, but nothing that a hard reboot can't handle.

But starting yesterday it doesn't want to boot up past the Asus Rog logo. But it works in safe mode. It also works if I disable the Nvidia GPU from the device manager.

I've installed and uninstalled various Nvidia drivers no change including the one from asus driver page.

I've used the Ultimate Boot CD to verify the video memory using the application Video Memory Stress Test 1.7 and it failed the test.

Once it starts the test "Ones" and "Zeroes" which I'm assuming it means it writes and read from the video memory, it shows error for all video memory addressees like in the image attached.

So it appears the GPU or Video memory is busted but I'm not an expert I don't know for sure

BUT

the strange thing is after rebooting for at least 50 times at least 2 or 3 times it booted into normal mode with the nvidia gpu working. I even managed to attach a second monitor and it worked. But it works correctly for less than a minute and then the screen gets black (with the lcd leds on)

Anyone have any idea or had this happened to him?

Can I realistically repair this computer? Can I replace the GPU or have any type of solution.

Thank You for your help.