Reply 200 of 262, by maxtherabbit
georgel wrote on 2021-11-17, 17:30:maxtherabbit wrote on 2021-11-17, 02:11:
Any idea why DOS32AWE would not work on a dual Pentium Pro system (with APIC)?
I have a pair of almost twin systems, same software, both 440FX Pentium Pro builds. It works great on the single processor machine but doesn't on the dual one.
What error do you get? If you move a CPU from one machine to another does it change the situation? Or at least if you remove the second CPU? Does the DOS32A exhibit the same problem as DOS32AWE?
It hangs up as soon as the first MIDI note is attempted to play. If I run DOS32AWE <game executable> without AWEUTIL loaded there is no hanging. If I load a real mode game with AWEUTIL loaded it works fine.
I'm sorry but I'm not really willing to move physical CPUs around for troubleshooting purposes. May it suffice to say the CPU and chipset in the working machine are the exact same. The only differences are the presence of the second CPU and the presence of the intel S82093AA APIC (which I strongly suspect is the root of the incompatibility)