Hello,
I have a strange sound issue with my multi board. All games working well, but some newer CPS2 games like Street Fighter Alpha 3, Progear or Vampire Savior have heavy sound glitches. It sounds like the samples are misplaced or wrong addressed, to put it simply, it's like Ken would say "Yoga Flame" instead of "Hadoken". Therefore the sound fx and music is completely messed up in those games. I read a lot of threads here about sound issues but funny is that most of my games actually working. (Like Street Fighter Alpha 2, D&D, Vampire Hunter).
My B board is a 93646B-3 (Grey SFZero2) and my jumpers are SOOS SO OSOSOS SOSOSOSO SOSOSOSO (As it says in the manual) The Pal is lifted and all wires are fine. I have checked all jumpers with a DMM, also checked the continuity of all pins from the Darksoft board to the A borad. I tried different SD cards with different ROM Sets (Also with decrypted ROMs) but no success yet. Is there something wrong with e QSound addressing? Unfortunately I don't have another A borad to test it. Any ideas?