680i SLI is too expensive? Asus as the solution : P5N32-E SLI PLUS

[Leeghoofd]

Put soley the new dimm in and test it thoroughly... it could be that the enw dimm isn't as good as your old one.

Loosen up to 2t command rate and try again, now it's runs dual channel (single channel before) and puts more stress on the NB memory controller, what are those rams rated for ? 4-4-4-12 ? Have you tried 1700FSB ( is more easy on the NB, hard to believe yep it is hard to believe)

Also when you mention it become unstable after 5 -10 mins could more mean it is a heat related issue, do you actively cool your NB ?