Thanks for your help 😀
I select General MIDI/MPU-401, port 330, IRQ 5 (same as SB, for the few games asking for it).
Games I tried so far are Colonization, Doom, EF2000 v2.0 and MechWarrior 2 (vanilla edition).
System is on PC DOS 7.1 in real mode (except of course for Colonization).
Sound Blaster is on standard settings, A220 I5 D1 H5 P330 E620 T6, and works great with digitized sounds, FM and native WaveTable music.
DIAGNOSE reports everything is fine. CTCU reports no conflicts, Plug-and-Pray OS setting in motherboard's BIOS is set to NO (tried with YES also but I get weird settings, like A260 I10 D3 H5 P330 E620 T6).
I tried disabling devices in CTPNP.CFG, to no avail.
I tried initializing the card through AWEUTIL /S and then removing that line from AUTOEXEC.BAT. I removed also the SET MIDI=SYNTH:1 MAP:E MODE:0 environment variable.
I got no joystick plugged in, no additional memory, no CD-ROM plugged in the IDE interface.
I don't know what to do. Maybe planets aren't aligned or the goats' blood wasn't fresh enough. My female friends aren't virgins since a looong time ago so it's useless to sacrifice them to the Dark Gods, and I'm running out of candles... Is there any diagnostics tool that can check the daughterboard?
Thanks for your patience!