Thanks for your quick response. 1600's are a lot cheaper. Should I remove to one 2GB stick & replace with the 2x4GBs?
Is there a preferable brand & are the heat sinks necessary or just gimicks? (I have 2-200mm fans and 3-140mms...
Get a matched RAM, its the best thing to do 1otter2.
CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ8GX3M2A1600C9http://www.newegg.com/Product/Product.aspx?Item=N82E16820233144
SUPPORT FOR INTEL XMP
Intel Extreme Memory Profiles (XMP) technology provides a robust, profile-based overclocking solution for novice and experienced overclockers - easily overclock your platform by selecting the predefined profile in the BIOS, or manually adjust frequency and timings to extract maximum performance from your system.