My mITX build has GSkill 1600 RAM 4gb (2x2gb). At the stock settings Memory only rates a 5.9 on the Windows Experience Index (I'm aware of most people's opinion of WEI) and the low rating has troubled me. So I went into BIOS and upped the RAM multiplier to 1800 and the WEI score for memory jumped to 7.8. Did I do a good thing or a foolish thing? System specs are in my signature. The system has performed nicely since it was first assembled. Still running nicely with the raised RAM multiplier.