I wouldn't push the CPU harder. Ram timings can be set in the BIOS. EDIT: Found the sticks and some info, check it out. This one has a lot of info: http://www.overclock.net/intel-memory/243828-g-skill-ddr2-1000-cl5-4gb.html Note that the gain isn't so high from 880Mhz and up to 950Mhz TRFC at 48 or higher, this ram like high TRFC values. More as a review, they probably didn't try very hard: http://www.tomshardware.com/reviews/hardcore-ddr2-ram-corsair,1627-5.html Another one from a user with IP35-Pro running them at 500 with 5-5-5-15 timings: http://www.xtremesystems.org/forums/showthread.php?t=129026 Look at the last post on page.