Dead processor?

carian

6502
Hi,
I've grabbed a 68040RC33 processor for my LC 475 but it didn't work. Pulled it out and cleaned pins and the socket but no luck again, no chime, no boot, only black screen. Is it DOA or some jumper adjustment needed? Stock LC025 CPU works as normal.
Thank you.20251230_154724.jpg20251230_154738.jpg
 
Daft question - I assumed the computer worked before? I assume it still works with the original CPU?

Did you change anything else at the same time?
 
Daft question - I assumed the computer worked before? I assume it still works with the original CPU?

Did you change anything else at the same time?
Yes it works perfectly with stock processor. Logic board and PSU recapped. 128MB RAM, 2X256KB VRAM at 80ns, BluesSCSI V2 installed. Tried without 128MB RAM and BlueSCSI as well but same result.20260214_134758.jpg.jpeg
 

Attachments

Last edited:
Back
Top