Problem with my amiga 4000

[tadeo80]

So it's possible that even if diagrom ram tests are successful the memory sockets can still not work properly 100%?

As I wrote earlier. Do a simple test. Remove the memory chip-first slot. Start the computer. If the screen is yellow, the memory slot is not damaged. If black, it is possible

 

[Nek3d]

As I wrote earlier. Do a simple test. Remove the memory chip-first slot. Start the computer. If the screen is yellow, the memory slot is not damaged. If black, it is possible

I'll check it and see what happens! Thanks!