EDO/FPM is NOT PC*. They are not/have never been compatible as far as I know. There was one board I worked with a while back that took any type of ram via a BIOS setting but that isn't what your talking about. I'm guessing it's just not compatible. Note that PC100 is <=10ns. 60ns isn't even PC66 IIRC. I just don't think it will work. Maybe time to find someone to trade that ram for some EDO/FPM ECC ram... sim David Dyer-Bennet wrote: > It says here "either fast page mode (FPM) or extended data out (EDO) > 3.3V 60ns DRAMS mounted on JEDEC DIMMs". But just before that I may > have found the actual problem -- "supports from 16MB to 1GB of ECC > memory". I'll bet the ECC requirement is what I'm actually having > trouble with. The other description I looked at didn't specify ECC. > > (It's the dual Pentium Pro motherboard in a Micron Vetix LXI-N server > box; I *think* it's an intel BB440FX board actually. Anyway, it has 8 > DIMM slots, each of which can hold up to a 128MB dimm.)