I have a little problem with these sticks, maybe someone could help
They work fine up to 530Mhz with dividers.

1:1 500Mhz is a nogo, as it won't post, i tried using SetFSB but there are a lot of Errors with HCI Memtest. Loosening Subtimings didn't help.

Now I'm testing 495Mhz 1:1, it passed 10xIntelBurnTest with 3GB Memory
and 500% Coverage with HCI-Memtest, but my Firefox is occasionally crashing , even at FSB480, what could this be, as I've no idea, because it passed a lot more stressfull programms.

I'm running an E8400 on GA-P35C-DS3R [vMCH 1.3V,vDIMM 2.0V BIOS (seems to drop heavy under load)]