3gb ram but only 1gb usable?

  trisha01 10:34 AM 08 Feb 13


I have an older desktop, Acer Aspire running Windows 7 Ultimate 32 bit, it had 4gb ram installed (I did know that only 3gb could be used)

yesterday I took one of the ram sticks out ( had 4 x 1gb) and put in a different computer. Since then it has started crawling along, I have noticed that it says 3gb ram 1 gb usable. is this something that I need to go into the bios for? I ran the memory diagnostic tool this morning but did not get to see a report.

  Pine Man 11:07 AM 08 Feb 13

The RAM probably has to be installed in pairs.

  trisha01 13:13 PM 08 Feb 13

it would say 2gb usable not 1gb? besides have had odd amounts in this pc before

  Pine Man 13:26 PM 08 Feb 13

Sorry can't help you further.


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