RE: Close but no cigar RE:Answer to missing memory

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From: James H. E. Maugham (CaptJHEM_at_waterw.com)
Date: Thu Jul 26 2001 - 20:28:52 EDT

Matt,

Matt Winston [mailto:mattwinston_at_ameritech.net] wrote:

> Well, if the only memory missing is what's on the planar, why does my 600,
> 2645-51U, have two pc100 128Mb sticks installed, and only show 228Mb?
> Should be 128+128+32=288. Even 256 showing would be OK.
> Now it runs fine, and I've seen posts with various explanations, have the
> IBM notice that 128Mb is supported with the latest bios.
> Windows 98 and Windows 2000 agree with the bios, only 228.
> So it goes, 8-)

License and registration for the memory? I've come to the conclusion that
this is a speed problem on the 600 with PC100 memory, or at least that's my
explanation du jour. ;-)

I can even tell you exactly what's being reported:

BOOT: 228,800KB
BIOS INSTALLED: 294,912KB
BIOS USABLE: 228,800KB
W2K: 228,720KB

so this is a readily reproducible problem.

Both my 600s (2645-850 and 2645-51U) balk at seeing more than 228MB of
memory with 2 X 128MB PC100 memory installed. However, they're both happy as
clams at high tide with 2 X 128MB PC66 memory and max out at 288MB
(294,912KB installed).

My 600E (2645-4AU) and 600X (2645-9FU) have no diffculty whatever with the
same memory.

Regards,

James

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