On 7/12/22 22:08, Dave Dunfield via cctalk wrote: > After recently selling my ImageDisk system, and having a few spare older PC...
I ran into a similar situation with a newer-than-P3 single-drive motherboard. I'd switch from the internal 3.5" 1.44M drive to an external 5.25" 360K drive. It turns out that the onboard SuperIO chip didn't have enough drive current to handle a 5.25" drive with 150 ohm pullup terminators. Changed the 150 ohm packs out for 2Kohm and things worked fine. IIRC, this was a Socket 939 system. Handled FM very well. You could also construct a small buffer board using something like 7407s to provide a little more drive. FWIW, Chuck
