It looks clean and great, but it reports CDAL parity error (machine check
10) randomly if the panel head is installed in place, when it is processing
bulk of data. If the panal head is hanging there loosely, the chance of
getting a CDAL parity error is much much rarer.
What could cause this problem? A defective cache memory chip? supportive TTL
chip? capacitors?
Or is it better for me to unsolder the CPU and sell it to collectors?
Any idea?
vax, 9000