I'm having a problem that's new to me.  A motherboard that doesn't
recognize or report memory modules at their correct size.  I added two
new 16MB (4x32) FPM, 60NS to a system which already had a pair.  At that
point, the system reported 32MB at POST.  Pulling out one of the new
SIMMs yielded 40MB instead of 48.  Pulling the existing SIMMs and
installing just the new ones yielded 32.  Adding one of the old ones
gave me 40 instead of 48 again.  Installing the second original SIMM in
the fourth slot again put me back up to 48MB.  Individually, all of the
chips test okay.  In matched pairs, they test okay.  I'm not aware of
any CMOS settings that should affect how the memory is recognized.  Is
it a SIMM compatibility problem, bad memory slot(s), a possible jumper
setting, or something else?  Unfortunately, I don't have the manual for
the system.  Any assistance greatly appreciated.

MOTHERBOARD SPECS:
OEM: GemLight
Chipset: SiS-496-497/A/B
BIOS: Award v4.50PG
BIOS Version: 40-0205-2A4IBG39-V2.05
Processor: AMD Am5x86-P75-133


Larry Atlow                                     [log in to unmask]
Quality Assurance Administrator
Howard Computers

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