SpidersWeb
Veteran Member
This is odd and I'd love to hear some theories.
If I have:
- Video
- Floppy Controller
It boots off floppy fine. But add my Everex 3000 (setup to provide 128KB base memory and 2.5Mb extended) and it wont boot anything newer than DOS 3.3 from the floppy drive.
DOS 6.22 or DOS 5.0 on either 360K or 1.2Mb disks will not boot. In DOS 6.22 it gets to the point just before "Starting MS DOS" and you hear the drive go back and forward like it has a bad sector then you get a Non System Disk Message. DOS 5 just hangs, 3.3 boots fine and so does the AT Advanced Diagnostics disk. (NB: I tested these disks in other machines, created new ones, changed controller, changed cables, tried changing floppy drive - the symptoms are exact and go away completely when the memory card is removed)
It boots DOS 6.22 off a hard drive no problem - and you can access/copy files from/to floppy without a problem - you just can't boot DOS 6.22 off floppy without removing the memory card.
For everything other than booting modern DOS versions off floppy - it's perfect.
Ideas?
Board is an IBM 5170 Type 2 8Mhz. Memory card is an Everex EV-135 3000 AT RAM Deluxe.
If I have:
- Video
- Floppy Controller
It boots off floppy fine. But add my Everex 3000 (setup to provide 128KB base memory and 2.5Mb extended) and it wont boot anything newer than DOS 3.3 from the floppy drive.
DOS 6.22 or DOS 5.0 on either 360K or 1.2Mb disks will not boot. In DOS 6.22 it gets to the point just before "Starting MS DOS" and you hear the drive go back and forward like it has a bad sector then you get a Non System Disk Message. DOS 5 just hangs, 3.3 boots fine and so does the AT Advanced Diagnostics disk. (NB: I tested these disks in other machines, created new ones, changed controller, changed cables, tried changing floppy drive - the symptoms are exact and go away completely when the memory card is removed)
It boots DOS 6.22 off a hard drive no problem - and you can access/copy files from/to floppy without a problem - you just can't boot DOS 6.22 off floppy without removing the memory card.
For everything other than booting modern DOS versions off floppy - it's perfect.
Ideas?
Board is an IBM 5170 Type 2 8Mhz. Memory card is an Everex EV-135 3000 AT RAM Deluxe.