carlostex wrote:j^aws wrote:From my tests in real DOS, I found the PCI YMF724, with SB-Link enabled, more compatible than the YMF71x on an ISA bus. The YMF724 was also more compatible in DOS than the YMF744 and YMF754 cards; IIRC, it could be used with older drivers in DOS...
Problem is, not all boards have SB Link unfortunately, some chipsets support DDMA, but i found some compatibility problems. Dune 2 does not work well with Yamaha YMF724 cards.
Okay, FYI, I had an opportunity to test Dune 2 with a YMF724 card using SB-link, and it works great. System used was MS-DOS 6.22, a 440BX chipset and a VIA C3 CPU. Using such a card is a great way to save an ISA slot, especially on Slot 1 boards.
This setup has no Windows installed, and surprising works well. One thing to note is that DOS4GW needs to be manually copied to the Yamaha DOS drivers directory. Then I setup batch files to run "setupds /s" or "dsdma". If needed, I can CALL these batch files from Autoexec.bat for convenience.
From my tests, most games work with SB-link/ PC-PCI, but a few need switching to DSDMA. With games such as Doom2, I switch to DSDMA using a batch file. I haven't come across a game that doesn't work with this card. They probably exist, but still haven't encountered one yet...