I am working on a old custom-built computer running WinXP and only 256 MB ram. I want to upgrade this memory with PC133 SDRAM. The memory chips in it now are 1) 128 PC100 and 2) 128 PC133. I installed 2X PC133 256MB pieces into this system. The system only recognizes a total ram memory of 231MB. I swapped the chips back and forth in each slot with the same total ram of 231MB. The motherboard ID is: I810-ITE8712-6A69ME1CC-0. I can’t find the specs. for this board. I would like to know the ram capacity to find out why it will not recognize the the two new chips of PC133 SDRAM that I’m trying to upgrade to.
Any help with this issue will be appreciated.