Thanks Carol Yes tried 360K and 1.2Mb versions. The really old 5 1/4 Have so many jumpers it was almost impossible to try them all. The bios was updated once, to what I can't remember. It's fun just to run dos and a 30k editor like Norton. It is so fast 10 M/hz wow. Ed Knights > On Thursday 26 September 2002 07:20 pm, Ed Knights wrote: > > I need some help getting a Proto PC /PC-Tech X16B going. > > > > It is a XT with a 80186/8087 CPU and SCSI on the mother > > board made in the mid 80's. > > > > It boots up on a hard drive in dos 6.22, but I get > > a 'disk not ready' on the 5 1/4 floppy. I have tried > > several drives and many jumper settings. > > > > Ed Knights > > Ed: > Just a shot in the dark: Is the disk density compatible with both the drive > and the BIOS? Back in those days, 360K disks were bleeding edge. > Regards, > Carroll Grigsby > > The NOSPIN Group is now offering Free PC Tech > support at our newest website: > http://freepctech.com The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com