First post, by ux-3
- Rank
- Oldbie
I am currently building a simple super socket 7 PC to cover most of my remaining DOS games (and perhaps interim) games. It will be hooked up to a Dell 1280x1024 TFT through analog VGA. Here is my current problem:
The board uses the SIS 530 onboard AGP chipset. This 530 works nicely so far with the TFT and provides build in VESA detection in my older titles. It can be deactivated with a jumper. The board does offer PCI slots but no AGP. There is no urgent reason not to use the 530 but one: I do own a Diamond Viper 330 Riva 128 PCI (Revision D).
But the Riva gives me some problems.
1. The Riva screen image is shifted all over the TFT in every mode. I am constantly using auto-adjust to get it centered. This is a problem I don't really have with the onboard 530. This is too bothersome to really use the card.
2. Riva is Vesa 3.0 complient, but this complience is not detected by some older games. Which means these games work just fine ONCE they are configured, but require another card (i.e. 530) for configuration.
I seek solutions for these problems. If I can't solve #1, I need not worry about #2. I am kind of puzzled with the screen issues I face. Why does the 530 work well, while the riva is shifted all over the place?
I have seens some reference to screen positioning software for the riva 128 but I am not sure what it is and if it can change hardware settings. After all, I want this card to work mostly in DOS, without much interference or TSRs.
If you have any idea how to tackle issue #1, please let me hear it.
Thanks in advance.
Retro PC warning: The things you own end up owning you.