grossman@bbn.com (Martin Grossman) (02/28/91)
1) I just got a 80386DX 33MHZ
A: is 5.25 1.2MB
B: is 3.5 1.4MB
C: is 130MB IDE
BIOS is megatrends (or something like that)
2) I've installed fastback plus and during install it says it can't use
the DMA (even low speed DMA)
3) I've sucsessfuly backed up (just 5 MB) onto B: but using the "DOS"
feature (I assume this means fastback is using DOS calls instead of
direct writes (via DMA) to the drive)
4) In the BIOS extended setup their is an option for DMA speed. The
choices are 4.xx or 7.yy (I don't remember exactly what xx and yy
are).
5) I've tried both DMA speeds and fastback complains either way.
So, can someone explain this?
PS Are there any PD programs out their that I can use to make sure the
DMA chip(s) are physicaly in the system (hard disk doesn't use DMA)
and are working?
PS#2. I got no replies from a post a week ago so here goes again...
Does anyone know why a serial "pc systems cmouse" would work
fine on an XT and not on a very fast 80386 at 33MHZ?