I have purchased 2 x

Question

i have purchased 2 x samsung chip 1 GB ddr-400 PC3200 184 pin chips to up grade my ram on my hp pavallion t680a.I installed these and my system seemed to reconigise the fact that the ram had been increased to 2 GB - but I had a number of problems where my system closed down (giving a blue warning screen with various codes each time).I also ran a PC Doctor Diagnostic and an error came up "memory advanced patern test = me516-5".It appears that the Samsung chips are the correct type - but do not seem to be compatatable.Is there some sort of BIOS patch I need to install for the ram upgrade to work or are the Samsung Chips not compatatable with the HP machine?THANKS!!!!!