What form does 'problems getting a video signal' take? Do you get POST chime? Audible or palpable HDD spin-up? Raster, or not even that? The shorter card amongst the RAM slots is cache—not ROM—of which the cache on the card of a MAXpowr PDS or ZIF CPU should enable complete removal if it is smaller than that on the CPU card. Is your PRAM battery showing at least 3.3V in circuit? Removal of the 9600's ROM (if you could) would turn the 9600 into a kerbstone, anyway.
Given that the MLB was demonstrably working a year ago, first impression is that you have a bad connector somewhere. The PDS slot is one that catches many people out because of the extra force needed to bottom a card in it. That failure should produce absolutely no activity of any kind. Is that what you get rather than just 'no video'? If not that as the cause, is the PSU giving you the green power-on LED?
de
Typo. corrected
Given that the MLB was demonstrably working a year ago, first impression is that you have a bad connector somewhere. The PDS slot is one that catches many people out because of the extra force needed to bottom a card in it. That failure should produce absolutely no activity of any kind. Is that what you get rather than just 'no video'? If not that as the cause, is the PSU giving you the green power-on LED?
de
Typo. corrected