after some more tests, I realized that I declared success too early. With my wiring the system can boot and read the first disk inserted in the drive, but cannot detect the change of disk properly. DIR shows the content of the previous disk, and then you get errors when accessing the new disk. Oddly …

Hi Perro, I recently got a PC5086 with a non working floppy drive. After some trial and errors, I was able to use a standard 1.44 drive with the following diagram for the adapter. (26-pin) -> (34-pin + power) Power 1 -> 5V power Index 2 -> 8 DrvSelA 4 -> 12 Density 6 -> 2 Ready 8 -> 34 MotorA 10 -> …

My favourite is Windows 3.1: it is the only release of windows that I used extensively as my main OS. In the Win9x era I switched to IBM OS/2 and later on to Mac OS X. The windows partition was used only to play games.

Thanks! I would try the patch mentioned in the thread.

I have been experimenting with a Compaq Presario 7400 as a DOS retrogaming machine for some months. It is a low-end PC of circa 2000, with an AMD K6-2 533MHz CPU, a VIA MVP4 chipset with integrated video card, and an ESS ES1989 Allegro PCI sound chip. I boot Win98SE in DOS mode with Phil's boot menu …