My experience has been the opposite with FM always working and digital being problematic at times. Maybe try to clean the contacts of the SB16 or try another ISA slot maybe?

lowlytech wrote on 2020-03-08, 17:02:

My experience has been the opposite with FM always working and digital being problematic at times. Maybe try to clean the contacts of the SB16 or try another ISA slot maybe?

I have tested with another sound card, digital and FM work perfectly. The problem come from the sound card.

Dear all
Also here same problem. CT2830.
No idea what’s going on. 😒
Parameters are all set correctly. Can only assume it’s jumper related

I had the same issue, fixed it with a couple jumpers: SB16 problems

See here for jumper settings:
http://web.archive.org/web/20010821091713/htt … dell/ct2830.htm

And saved just in case:

Have you checked the IFSD and APSD jumpers ? Read this: Sound Blaster 16 CT2830 Wave Side dead? (Solved)
http://web.archive.org/web/20081221043625/htt … e.aspx?sid=3039

shit ! I am slow 🤣

Thanks guys I go through it.
First interesting fm setting I saw in cyclones thread: fm synth=388 port. Never touched that. Doesn’t seem to be an jumper-changeable item. I dive deeper

I will go again through it jumper by jumper. Csp jumpers are hardwired. Basic addresses set. But I will check again. Interference by ide port? No can’t imagine. Keep you informed

So everything is fine from jumper perspective. I installed win95 now and there fm Synth works flawless. So I am out of ideas. I can only assume it is related to my dos drivers or maybe the csp chip&driver

Exactly what games / programs is the FM synth not working in?

Post the contents of your config.sys and autoexec.bat files

Yes will do so. Fm isn’t working for all games I tested. From Dos4gw, dune2, Sierra ones...
Bootconf will follow

Got it. I had to remove all sb16 related stuff from config and autoexec except for set variables. It works now 😳🧐