Considering the age, I would start by checking the capacitors out. I found a forum where a user painstakingly created a schematic for board versions 03 and 04
Considering the age, I would start by checking the capacitors out. I found a forum where a user painstakingly created a schematic for board versions 03 and 04
http://www.acidmods.com/RDC/NINTENDO/N64/N64%20NUS-CPU-03-04.pdf