I discovered the reason why my OPTi 929 outputs garbage out of the YMF262 every time I play the floppy disk version of Star Wars X-Wing with this sound card, and it seems the reason, according to this: http://www.oldskool.org/guides/oldonnew/sound
Is due to the ISA bus frequency being too fast. Now, my question is this: I found this pinout of the ISA connector: http://pinouts.ru/Slots/ISA_pinout.shtml
And I'm not sure what each arrow means. CLOCK, pin B20, has an arrow pointing right, which I'm not sure if it means input or output. Can anyone tell me what it is(I'd assume it's an output from the ISA slot to whatever device is plugged into it)? I'm positive the ISA bus frequency is too fast on my IBM Personal Computer 300PL, which is what I use for MS-DOS and Windows 95/98 gaming, as the OPTi 929 outputs a bunch of garbage notes whenever I play the floppy disk Star Wars X-Wing, but the SoundBlaster AWE64 I have that's also plugged into the computer appears to be immune to the problem, and someone who upgraded to a SoundBlaster AWE64 says he experienced no such garbled notes after upgrading his SoundBlaster AWE32 to a SoundBlaster AWE64. The only problem I have with using the AWE64 is that some notes coming from its ASIC-based YMF262 are different from a discrete YMF262, so I'd like to figure out a way to fix up my OPTi 929 to work properly with the floppy disk Star Wars X-Wing. Would I be able to remove the connection to pin B20 and solder any oscillator between 7.16 and 8MHz without causing any problems? The only thing I've been able to do to fix the problem is disable the CPU's cache, which makes the computer unbearably slow and makes Star Wars X-Wing INCREDIBLY jittery. CPU slowdown programs suck as well, so those are out of the question. So, can I just feed a 7.16 to 8MHz signal into the CLOCK pin of the OPTi 929 without any problems occurring?