flaky Apollo 1230-40MHz

[humppa]

Already tried different RAM?

[humppa]

could be a loose edge conn though - I even got some trichloroethane spray to clean the contacts, etc !

...and try to carefully bend up the pins of the A1230 with a needle. Loose contacts are a common problem on the CPU slot of the A1200.

[humppa]

It is known that Apollo accelerators have timing problems with some Amiga 1200 motherboards and cause frequent crashes. I can't remember which revisions are affected, but if you do a search here, you will find them.

It was revision 1D4 (the most common one) which was most affected by timing problems.
However, you can't bet on that. My 1D4 has been running perfectly so far with all accelerators I plugged in.