Operating System: All
Why should I disable Multi-Core support or Hyperthreading in BIOS
The problem is that many software applications weren't written for chips with multi cores.
And most of the applications don't support Hyperthreading.
Unfortunately, if your 3rd party PCI card and its application is one of them, it would exhibit performance issue, application error, system hangs and etc.
You need to disable the Multi-core support or Hyperthreading in BIOS (only if it is available or an option to disable it)