Think its your operating system thats to blame, its got corrupted, is it xphome xppro or vista
Sounds like its the right ram both pc 2700 ddr should fit no problem take old stuff out and try just one stick of new in different slots,
not unusual to have errors on your hard drive if you replace them every time you get an error you will be going thru half a dozen a week,
Dont think thats the make model of motherboard, VIA VT8237 is the name of the chipset and its used on lots of different motherboards, what your looking for should be printed on the board like this circled
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