[comp.sys.ibm.pc] Using EGA with Zenith Z-151 PCSKIP

michelbi@oregon.uoregon.edu (03/02/89)

In article <718@wucs1.wustl.edu>, frisse@wucs1.wustl.edu (Mark Frisse) writes:
> Can an EGA be used with a vintage-1985 Zenith Z-151 PC?  I have such a
> PC -- I have no way of knowing the version number of its ROM-BIOS, but
> the "monitor" function is copyright 1984. I installed a VEGA Deluxe
> EGA card (vintage 1986 from Video 7) and Multisync monitor (original
> version) using the card and monitor configurations that Video 7
> recommends for this specific PC.  Turning on the computer then makes
> the monitor come up with an orange border and a flashing white
> center...no text or anything else.  The keyboard is also unresponsive
> (except to Ctrl-Alt-Del).  (The monitor is influenced in SOME way by
> the computer, since rebooting causes a transient rearrangement of
> meaningless rectangles on the screen.)  This monitor/adapter
> pair works just fine on an ancient IBM PC with an updated BIOS ROM.

There are a few factores you may want to consider when adding video cards
to your Zenith computer.  First, you may have to disconnect your former card.
This is usually done by setting one or two jumpers on Zenith video card.  
Second, you will want to check the settings of your new EGA card.  It may 
have to be set in such a way that it understands that it is not the only
video adapter in the machine.  This step may or may not be necessary.
Lastely, you may also have to change the ROM-BIOS of your machine.

If this does not help, leave me a MAIL message, with as much info about your
machine as possible, and I will look into this a little more.

Michel Biedermann       		MichelBi@oregon
U of Oregon
Zenith Data Systems Student Rep.