I picked up one of those in a Kansas City Thrift Shop. Never had any drivers, but everything works fine.
If you use SysInfo or something similar you'll find a device running for it. RockHard.device, I think.
I almost declared it dead until I realized the thing was old enough to have a three way game switch. On my model center position lets everything run. Another diasbled the Fast Ram. The third position cut out both the ram and the hard drive.
Once I found the right position everything worked great.
I usually run that A500 with one of those Supra 25mhz 68000 accelerators between the CPU and the RockHard. No issues there. In fact I have two Intergraph branded oversized 4mb 30 pin simms happily pretending to be 1mb sims.
A500 with I MB Chip Ram from Fort Leavenworth Thrift Shop $25.00; Supera accelerator from eBay about $20.00; RockHard with good size hard drive and 8mb Fast Ram $16.00. Having a computer that does exactly what you expect it to: PRICELESS!
:-D
