EXS 24 Logic Sampler Users Group

Does anyone know when the EXS starts streaming from the hard drive? I mean
is there a sample size that has to be reached before the streaming kicks in?
Do we know when the EXS is streaming from the drive?
The reason I ask is that my samples are stored on an IDE drive hanging off a
SCSI to IDE converter card that was never designed to play back audio in
real time. I'm wondering if this is the cause of a once a day crash I've
been having with 5.1.2 and 5.1.3. Logic keeps playing after the crash until
you force quit. Never had this before.
Phil Buckle.