Memory lost

Although my BIOS reports 2G of memory, control > system reports only 1 G.  Have any thoughts as to why windows does not recognize the other 1 G memory.  I have HP Pavilion Media Center TV m7480n.

Thanks a lot for your help.  I've run the memory test (2 different ones) and they both reported that 1 G of memory.  I finally got enough courage to open up the computer and watch closely.  I have 2 sticks installed, but one of them had worked its way loose.  After the reinstallation of a stick, it was happiness in Mudville again.  Thanks again.

Tags: HP Desktops

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