503+ memory problems

I have the memory set for 4 way interleave and cas 3, the FIC is set for
Turbo (running at 100MHZ), what ever that means I have the latest bios for
the Soyo and the Je4333 for the FIC that makes it compatible with the
K6-III+ 450mhz cpu. The Soyo is supposed to be compatable with 32x64 (8 on
a 256 module) but not the High density chips. The Fic needs the lower
density chips ,16 on a 256 mb module.
"Alex Zorrilla" <apz.RemoveThis@zxeng.com> wrote in message
news:4117A9FC.1FEA4CF8@zxeng.com...
 > That is weird. I know that Memtest86 can handle >256MB. The question is,
 > what is about your systems that it does not like? Do you have the latest
 > BIOSes installed for both motherboards, in case it is a weird memory
 > compatability problem? Have you played around with the memory timings in
 > the BIOS at all, under Advanced Chipset Options?
 >
 > --Alex
 >
 >
 >
 > Wally wrote:
 >
  > > I have a 503+ with a K6-III+ 450 MHZ running at 500MHZ(Win98SE) and it
  > > runs fine with a 256mb (pc133)memory stick but when I add another stick
  > > of 128mb Memtest 86 shows errors. What is weird is I have a Soyo
  > > K7VEM-Pro that uses PC133 SDRAM and any memory over 256MB shows errors
  > > in Memtest 86 (3.0) also. Checked individually the sticks check fine. It
  > > is like Memtest 86 can't handle any thing over 256mb.
 >


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