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PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Date:
Mon, 18 Jan 1999 10:46:49 -0800
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PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
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Subject:
Re: IBM 300 GL MEMORY UPGRADE
From:
David Gillett <[log in to unmask]>
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On 15 Jan 99, at 22:35, Gil A. Patterson wrote:

> I've purchased a 64 meg SDRAM DIMM to replace the 16 meg DIMM that
> came with the system.  However, when I installed the memory, the
> system still recognized only 16 megs.  As far as I can see, there are
> not dip switches to set associated with the memory.  And there is no
> setup in CMOS for changing the memory configuration.  The manual is
> no help either.  Anyone with any ideas?

  Your machine may require SPD ("Serial Presence Detect") SDRAM, which
includes a tiny EPROM on the DIMM from which the CPU can obtain
configuration info.



David G

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