Testing five old MFM hard drives

#retro #mfm #seagate Last week, we took a look at five MFM hard drives and controllers used to hook them up to a computer. In this week’s video, let’s try to get those drives working. Part 1: Part 2: This video --- Info Drives in this video: Seagate ST-225 Micropolis 1325 Computer Memories Inc. CM 3426 PTI - Peripheral Technology Inc. Seagate ST-4051 --- Video Links Seagate ST-225 Service Manual: ST225 - OEM Manual - MFM hard drive emulator: IBM PC AT 5170 Series (talking all about BIOS patching): Part 1: Part 2: Part 3: IBM PC AT 5170 Patched BIOS for faster hard drives: SpeedStor: https://