Why my laptop has a physical memory installed 2chips 512mb each and only reads 512mb only?

razo
razo Member Posts: 1 New User

Hi..Am new here and I have a problem with my laptop (Acer Aspire 1640) I have installed 2 memory modules 512mb each then boot up my laptop and shows 1024 memory installed,after I reboot it only shows 512mb memory installed, I thought one module was bad so I bought 2 new 1gb each and installed them,boot it up again and registered 2gb so turned it off and  I reboot it again and read 1gb installed. Does any one had same problem and how to fix it?

  I really appreciate any info how to fix this issue, thanks.

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