AFAIK Apollo didn't solder the crystals. If the crystal is pushed all the way in the card will work, mine did for 10 years, till one day after moving my 1200, the crystal fell out ( no trapdoor cover, to cool the card). If the crystal dislodges when powered up, it can harm the cpu. It happened to my Apollo 1240.
Even better than that, the ROM in my Apollo 1240 was socketed, subject to mechanical pressure of the SIMM pushing against it and eventually lost several pins... I can still get it working occasionally but it is pretty wrecked.
