Hi, I upgraded my old laptop with 2GB DDR PC2700 RAM. Both memory slots are now occupied. Previously, 2 x 256MB DDR PC2100 were installed. Interestingly run the new RAM modules with PC3200 speed even though the label is set to DDR-333. That surprises me a little, because according to notebook manufacturers only max. DDR-333 is supported. The mainboard is unknown the one SiS648FX chipset. About the I that here found out. Since my BIOS does not provide any settings for OC I had like Windows to the RAM clock to 333Mhz set, to see if the high to DDR-400 speed is responsible for the blue screens. Do you know a software that allows overclocking of RAM on Windows?