Graphics - Is a DDR3 graphics card Compatible with DDR2 RAM? posted in the Hardware forums; Alright I have E VGA GeForce 7950GT 512MB 256-bit GDDR3 PCI Express x16 HDCP Ready SLI Supported KO HDCP Video Card
and a K ingston HyperX 1GB 240-Pin DDR2 SDRAM ...
Re: Is a DDR3 graphics card Compatible with DDR2 RAM?
To answer your question, the type of Video RAM you have has no relation to the Type of System Memory you have. They are 2 completely seperate things. IT sounds more like you have an overheating problem or something else. Maybe a virus problem.