#VGA Help
5 messages in this thread
Lee – Thanks for the valuable info; you might have spotted the problem. I
looked in the manuals for both the VGA board and the Perstor but am not
sure if there is a conflict. The Perstor manual states that it has an
on-board BIOS ROM addressed at C800:0. The VGA manual says it uses the
standard Reserved Memory from A000h to C3FFh, and for the HiRes modes above
VGA it uses additional Reserved Memory from C400h to C7FFh.
Is this where my problem lies? Both manuals say that if there is a
conflict, check the other for a jumper (i.e. neither has a jumper). Will I
need another type of controller?
— Welmoed
If your numbers are correct it does not appear that there is any conflict
between the two cards' bios. What kind of equipment do you have? ie:
computer, VGA card, + any other plug in cards. Oh yes, which Perstor do you
have?. You might try pulling everything else other than the HD controller
and VGA out of the system, and booting from a plain DOS floppy. I think
we're about 1 clue short. -Lee
Lee – Okay, there's got to be an answer somewhere. Here's the info about
my system (it is a real funny one):
IBM clone 386 20mHz; 140 mB HD running under VFeature, Phoenix BIOS
(don't know the version number), Perstor 200 Series Advanced RLL
Controller, and currently a Wyse 700 monochrome monitor.
The VGA board is a HiRes 256 Version 2.2 and the monitor is a
Samtron.
I can get the monitor to work by altering the system configuration
and all that jazz, but I can't get my applications to run – not even
Ventura, and I did install the proper screen driver. It gives me a real
pretty solid yellow screen and then a "not enough memory" message. Some
applications, like PC Paintbrush Plus, won't even let me run a setup (but
maybe that one doesn't support VGA?). However, WordStar runs just fine, as
does ProComm Plus. Confusing!!!
I hope these additional clues will solve the problem. I don't have
any documentation on my motherboard, so I don't know if there is a switch
or jumper on it to switch from mono to color, and the dealer I got the
thing from doesn't remember what he put in here. ARGHH! Let me know if you
get any bright ideas.
–Welmoed
Are you using an EMS emulator like QEMM or 386 To The Max? If so try
EXcluding the entire area from A000-DFFF. If your running your mono card
and monitor yank em. Actually you didn't mention a mono card, is it built
into the motherboard? If so it probably has to be disabled. I'm beginning
to think I'm in over my head. If none of this stuff works, we probably
ought to move this over to the IBMHW forum were you'll probably be able to
find some folks that are using a similar combination. Lee
Lee – No, I'm not running an EMS manager — actually, I haven't figured
out how to make use of my 2meg yet. Yes, the Wyse has a mono card, and I
did pull it and replace it with the VGA board. I guess I'll have to go over
to the IBM hardware forum and scout around there for solutions. But I sure
appreciate your help and suggestions.
— Welmoed