also watch out for a little thing called " TDP" , Thermal Design Power. not gonna go into what it actually means but the CPU & M/B should have the same TDP rating. Did a noob thing on one of my first builds, got a CPU witha a TDP= 125w & the M/B rated @ TDP=95w wondered why windows did instant reboot when a load was put on. read on a forum my CPU basically ran TDP 75w at lower clock speed & 125w at high clock. Matched CPU & M/B TDP's an been happy ssailing
CPU Database has good specs on CPU's TDP. M/B's may have to go to manuf. website for info