Turn on the system get nothing, black screen, not my system, just trying to get some info

Tried GC in slot 4, nothing

Had bootmii as boot2 and nand backup, 4.2 got rid of that
Any chance of recovery without a chip?
System is currently running ver4.2
I am not 100% sure which wad was installed that caused the problem, but I have a list and can find out if necessary