What kind of remedies where connected? Tried to reflow solder joints on connector?
EDIT: Opps never mind saw the reasons.
1. Replaced 68k processor with a fully working MC68060RC50 Rev 6 Mask 71E41J which cost £60 for the processor itself
2. Replaced board edge connector to see if it was a mechanical contact issue
3. Desoldered PPC chip assuming this was issue (PPC chip will be included in sale)
Man thats sucks