I just swapped out my old mobo with a brand new P8Z77-V. My cpu is Intel i5-2500k.
Everything is connected, etc... when I power-on the the system, there is no signal sent to the display, the tiny CPU LED on the mobo turns red immediately, and the system shuts off after 10 seconds. I've tried reseating the cpu, messed around with the RAM, etc... nothing is working.
Random thought... I bought my cpu last year, very soon after the unlocked i5s were released. Now, I notice that the P8Z77-V supports "Intel® Socket 1155 for 3rd/2nd Generation Processors ". Do have a 1st gen cpu?
unless your cpu was hit by a power surge when your mobo died out, it shouldnt happen. imo the best thing to do is to look for a friend or someone who has a socket 1155 motherboard computer and test your cpu on their board to see if it works.
check for bent pins. there may be one on the cpu or the mb. also did you plug in the extra 4/8 pin power that the mb needs without this it wont post. have you tried posting the mb outside the cae to rule out that there a dead short.
Follow up: A red cpu LED means exactly what you'd think: Dead cpu. This was confirmed by my local pc shop. Good news is that it's under warranty (3yrs), and a new one is on the way. Intel support was actually quite good, and efficient.