🚀 go-pugleaf

<<<<<
< Please don't blame the V20. Your problem was the speedup to 8Mhz. There are
< other chips in your pc that are sensitive to the clock rate and those need
< to be replaced as well. You must also be careful of add-on boards. Some of
< those will have problems at 8Mhz (Try running at 6Mhz, you might have better
< luck.
<                    Jeff Denenberg
<                     ..!decvax!ittvax!jeffd
< /* ---------- */
The other chip that can cause problems with the FORMAT command is the DMA
controller but replacing it with a faster one doesn't help. The problem is 
that if you increase its clock to anything greater than 6 MHZ then the
DACK pulse produced during a verify operation is to short for the floppy
controller to recognize. Read or write operations have wait states inserted
so they will still work ok but a verify operation will return DMA overrun
errors. Clones designed for 8 MHZ opertion will normally run the DMA chip
at 1/2 the CPU frequency to allow these utilities to work.




John Eaton
!hplabs!hp-pcd!john