Patriot 2x4GB Intel Extreme Masters 1866 Tags: Memory vixing September 16, 2012 3:08:27 PM Hi, I have new PC and my ram is running at 1600mhz (cpu-z showing ~800). I know I need to change it manually in BIOS to run @ 1866. I have ASRock z77 Extreme4 motherboard. Here's the specification: Series - Viper 3 Edition - Intel® Extreme Master (IEM) Capacity - 8GB (2 x 4GB) Kit DIMM Type - 240-Pin NON-ECC UDIMM Voltage - 1.5V Tested Frequency - PC3-15000 (1866MHz) Tested Timings - 9-10-9-27 Base Frequency - PC3-12800 (1600MHz) Base Timings - 9-9-9-24 Tested Platforms - Intended for all DDR3 platforms Feature Overclock - XMP 1.3 What do I need to change in BIOS? Here's the picture (not mine - from manual): Also, where do I set my Intel HD Graphics 4000 VRAM (shared)? Thanks! More about : patriot 2x4gb intel extreme masters 1866 Can't find your answer ? Ask ! Publish Related resources : ForumOverClocking Patriot Memory Intel Extreme Masters Viper 3 1866 ForumPatriot viper 3 2x4gb on AMD AM3+ board ForumCorsair Vengeance 2x4GB 1866 Mhz Not Working on ASUS P67 Sabertooth?! ForumPatriot Intel Extreme Master , Limited Edition worth buying? ForumIntel extreme masters ForumPatriot Intel Extreme Master AMD ForumBestConfigs: High-End Intel Gaming PC ForumHow is this 2000 US$ intel gaming build ForumAsRock 990FX Extreme 4 won't run 32GB DDR3- 1866 at more than 1600Mhz ForumMemory Issue Please Help ForumVoltage Increase With Prime95 ForumBudget gaming pc ForumAdvice for new build - esp. RAM ForumBuilding Soon! Any ideas would be nice! ForumIntel Exteme Masters 8 GB ForumShould i go with this RAM? ForumStrange Problem - ASRock Extreme 4 and Patriot G2 DDR3-1600 ForumWorth it to go from DDR3-1600 to 1866 +? ForumIntel i5 3550p & AS Rock Z77 PRO 3 More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !