Frequency Much appreciated James...no wasn't talking about Chinese ram - more Korean / Japanese You're right i'm running Windows 7 64bit, so 8gb seems the best first target. The only sticks I've seen anywhere running reasonably better timings are Patriot CL5 - so maybe the right target..wonder if anyone has the spd profile for these. You also mentioned frequency would be worth looking at - but is this an option in my case? Would changing the top 400mhz frequency of the DDR2 SODIMMs to 533 lead to the motherboard accepting this and maybe even overclocking the cpu that way??? Tried to look at cpu overclocking a while back through setFSB only to find that the bios on my motherboard wouldn't support it.