HardwareHell has posted a Corsair 2GB Twin2X XMS2 DDR2 review

The memory timings were the strangest part of the whole review. I could not overclock much at all with relaxed timings. I was able to boot into Windows with 5-5-5-15 at 255 FSB, but it wasn’t stable and would end up with a BSOD every time. 5-5-5-12 resulted in a black screen. Yet slightly better performance was shown with the relaxed timings of 5-5-5-15 over 5-5-5-12.

Corsair 2GB XMS2 Review