Apologies in advance but I am a bit of a novice with the overclocking.
I have a Q9650 on a Rampage Extreme
With Corsair 4GB (2x2GB) DDR3 1600MHz/PC3-12800 XMS3 DHX Memory
This memory is not XMP.
For some reason, if everything is left to auto, the memory is running too slow (around 800Mhz if I recall correctly), so I started by setting the memory to 1333Mhz in the BIOS. This worked fine.
Then I tried a moderate overclock, by setting FSB to 400. This resulted in an easy and successful overclock to 3.6GHz, but once again the memory was at a strange low clock. So I then tried to set this to 1600Mhz.
However after setting it to 1600Mhz, the system became unstable. When booting the BIOS printout shows 1600Mhz. On the one time I booted okay with it, the reading in CPU-Z didn't match 1600Mhz..but I didn't see it long enough to read it.
Am I missing something really obvious here? Or did I buy nasty RAM that doesn't work with this board as it isn't XMP certified. As it is perfectly stable at 1333Mhz I can't believe the RAM is faulty.
The memory voltage should be fine on Auto as I am not overclocking the RAM, just trying to run it at its max. BIOS reports that it is using 9-9-9-24 at 1600Mhz which is correct.