Greetings.
Long time ago someone donated me an AWE32 CT3990, probably already with problems. By the time I was able to test it only SB16 part of it worked, EMU8000 test ending in total system hang-up. Since EMU8000 chip was heating up I assumed that it was faulty, and bought a scrapped CT3910 - also didn't worked, but at least EMU8000 wasn't heating up.
I've tested everything again before soldering - this time CT3990 was completely non-functional, non-detectable by unisound or PnP manager, sometimes even preventing PC from booting. Same without EMU8000 chip, and after soldering "new" one it also started to heat up.
What else I can try? EEPROM is 100% good, there is no visible damage, and since faulty IC also affects ISA bus maybe CT1749 is bad?