Hello,

I have an Acer Acros 575DB:

Socket 5 Pentium 75Mhz,
24Mb RAM
2.4GB hard disk (not original, from 1997)

The internal parts are from late 1994 and early 1995, and that's why I am running MS-DOS 6.22 and Windows 3.1 because while it was getting close, Windows 95 was not out yet.

Right now, I am installing Windows NT 3.5, but I will eventually be going back to DOS and 3.1.

Anyways, I also have an ATI Mach64 that I want to use in it, but even when I set the jumpers to disable the onboard video, I still get nothing on screen using the card.

I did some research and apparently with certain acer models there is drivers issue's with Mach64's, but I didn't find anything about any compatibility issue regarding not getting any image on screen and monitors still being on standby.

My friends at my local repair shop said it may be a compatibility issue, but I doubt it because it works on both my 486 board, and my Celeron board.

Now ironically I have the 1mb version of the Mach64, and my onboard Cirrus Logic GD4543 is 2mb, both don't do 3D Acceleration. The onboard video is better and I will be sticking with it, but I still want to figure this video card problem out.