The only resource that can be shared is the FM port (default 388). Everything else will need to be different. I would disable the joystick port on the second card. Good luck 😀

Even if writing to FM or joystick ports will work, both cards will respond to reading FM and joystick ports.

This will instruct two output drivers to fight over the bus, and that's a bad thing.

I would not suggest unless joystick and FM can be disabled or changed, manually with jumpers or through PNP.

I remember that having two ISA sound blasters in the same system ends up with trouble... anyway in your case I would sell the daughter boards and buy external modules SC-55 and MU-50 instead

I don't want external modules yet. I first want to experience integrated solutions for sound cards 😀
I already have SW1000XG, ultimate XG device (MU100).

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Ah well, i thought since they have everything the same they both would respond to the same thing and do the same and i would just swap the headphones to the other output jack. But it seems its not possible.

indeed they both respond to the same thing, but this is quite bad when happening in microelectronics =)

€: as you already have the yamaha xg, why would you need the db60xg anyway?
External modules produce so much better sound compared to the noisy sound blaster audio out

I can partially understand why 😀

I first started the whole MIDI thing i have with the idea of wanting an genuine XG device such as the DB60XG. After finally getting one i decided i want to try Roland counterpart as well.
In the end my plan is to keep SW1000XG, buy DS2416, PLG-150AN, PLG-150DX and get an decent enough MIDI controller.
Also, i have my eye on an Roland SC-880, but 140 euro is fairly high for me at the moment.

I have a dual soundcard setup. Not that it is a "normal" setup at all.

I have both a Sb16-Pro-PNP and a GUS-ACE. The difference between my setup and "normal" setups like the one you want, is that my GUS is a soundcard add-on, in the form of a card that can run independendly. Think of my setup, like the voodoo-1/2 setups, of isa-soundcards.

Now...
I have disabled adlib on the gus. And the system only works, if I leave out soundblaster emulation in autoexec.bat, when loading gus-drivers.
It can do SB-Emulation, yet as of no use, because I have a real Sound Blaster card.
The other thing, beside adlib/sb being disabled, is that I am running on the following settings.

Soundblastercard:
I/O: 220, IRQ: 7, 8bit-DMA: 1, 16bit-DMA: 5 (joystick disabled).

GUS-ACE:
I/O: 240, IRQ: 5, DMA: I can not remember, yet it is not the same as the Sound Blaster.
Joystick disabled, adlib disabled, and I put an "REM" in front of the SB-Emulation in autoexec.bat.

So, yes. It can be done, only difference is that my GUS is somewhat build for it, by standard.

I understand that it can be configured like so, i have an startup script to choose between AWE32 and Terratec Maestro 3296 on boot, that way evading resource conflict and having to spend ages to configure it all.
But since id like to keep it simple i thought i could use two sound cards at exactly the same I/O addresses.

of course you can add different sound cards, but not multiple sound blasters!
check my sig I have three in every machine 😀

True.... It's just a matter og selecting the right I/O, IRQ and DMA's.
It just takes a bit of time, when configuring, especially in dos.

Stojke wrote:

I understand that it can be configured like so, i have an startup script to choose between AWE32 and Terratec Maestro 3296 on boot, that way evading resource conflict and having to spend ages to configure it all.
But since id like to keep it simple i thought i could use two sound cards at exactly the same I/O addresses.

So you just want one sound card and swap quickly between two different wavetable modules?

Why not build a custom wavetable cable from which you can easily swap the card or keep both cards connected at the same time while selecting which audio gets to sound card?

The problem would be to mount the two wavetable boards somewhere else than fixed on the sound card.

Canonical way to do that would be using external daughterboard enclosures, MIDI switcher and audio mixer.

If you use two or more "blasters" from different brands you will not have problems. I've check it many times, not once and not twice. Now I have in my system three different "blasters", they all are working together at the same time. One of them is real Creative Sound Blaster, two others are clones. (My goal is other but nonetheless.) All cards have different address settings, each card on its own IO, IRQ and DMA. Sometimes when you plug more than one card the initialization queue order maybe important for getting problem-free work.
Why to try two same cards exactly? We can plug two different brands, both are with wavetable connector and set up them with varied resources. It should work! I checked.

P.S.: I know only one ISA sound card that can present in computer as several boards (up to 4 if I have not mistake) and use same resources for all. It is EWS64.

I recommend a single Sound Blaster + external MIDI. I remember having issues with several cards in a system. Some of the old Sierra games would stop outputting digital sound effects. But I didn't investigate further and went back to the tried and tested Sound Blaster + external MIDI solution.

I don't remember issues. Can you recall what kind of cards were used and which resources were used? It is strongly recommended that one of "blasters" must be sbpro/clone and occupy IO=220, DMA=1, IRQ=7/5; to place line in autoexec.bat that contains blaster environment A220 I7(5) D1 T4. The very old games shouldn't lose their card.

as already mentioned, the cards conflict with OPL2 at 388h and joystick port at 201h and shit just happens sometimes

I'm agree. Therefore I like to use cards with switchable FM and gameport. By the way "shit happens" sometimes but not always. It is necessary just to try each case.

PARUS wrote:

I don't remember issues. Can you recall what kind of cards were used and which resources were used? It is strongly recommended that one of "blasters" must be sbpro/clone and occupy IO=220, DMA=1, IRQ=7/5; to place line in autoexec.bat that contains blaster environment A220 I7(5) D1 T4. The very old games shouldn't lose their card.

It was with two Creative cards. A SB Pro 2 and a SB 1.5. The plan was to record OPl2, OPL3 and CMS in one machine.

Technically multiple cards will cause a conflict on the FM port 388h, but in practice it works OK in my experience.

The joystick port on 201h however will definitely need to be disabled on all but one card.