Ok, looks like XP
can support 4Gb (which I have to confess I thought it couldn't), so I'm guessing it's possible that your motherboard won't support more than 3Gb.
Have you checked the manufacturer's page for your motherboard to check it will take the 4Gb?
---------- Post added at 13:17 ---------- Previous post was at 13:15 ----------
Quote:
Originally Posted by Sir John Luke
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Ahhhh..... Pagefiles, of course - that explains it - nice link
