Asus P8Z77-V Boot problem

[Eivind Urnes]

Hello.

My PC is having some problems

My pc is 2 years old and started having problems earlier this week.
When i try to turn it on, the fans spins up and boot led's blink and it resets and do it again. nothing on screen.
see video:
[video="www.youtube.com/watch?v=E5CYtiXicrk"][/video]

I have removed GPU, RAM, connected hdd(power only), sdd(power only)
in the video i have 1 RAM connected, dident boot with one or the other.

until a few days ago, it has worked flawlessly
CPU and RAM been overclocked for the last year.
4.4@1.26v
1800MHz@1.65v

HW List:
ASUS P8Z77-V, Socket-1155
Intel® Core i7-3770K Processor
Corsair Dominator DHX DDR3 1600MHz 8GB Kit w/2x 4GB XMS3 DHX, CL9-9-9-24
XFX ProSeries XXX Edition 750W PSU ATX 12V V2.31, 80 Plus Silver
Sapphire Radeon HD 7970 3GB GDDR5

 

[Darkbreeze]

Being as those are 1.5v modules, running them at 1.65v for a long period of time may have damaged them or the CPU could be damaged from a long period of overclocking. Not necessarily from the overclock but from the increased voltage or from heat. Have you kept a consistent eye on temperatures and have never had the system throttle itself or shut down due to temps?

I'm not saying that IS the problem, simply offering a possibility to consider. Seems you are using the correct A2 slot position for single module operation so if you've tried all modules in that same slot to no avail then an single module failure is unlikely. There is however a notation saying that RAM voltage BELOW 1.65V is recommended by Intel to avoid damage to the CPU so this is something that you might want to consider.

Do you know anybody with a compatible CPU you can try to see if that is the issue? If not, you may need to replace it to find out. Since it was a functional unit prior to this issue and the problem occurred suddenly it's highly likely to be a complete failure of the CPU or RAM. I'm unsure as to why you bothered overclocking the 1600mhz RAM to 1800mhz when it really doesn't provide much performance increase but does dramatically increase the chances of permanent damage.

http://www.overclockers.com/forums/showthread.php/657285-How-To-OC-Stock-1600Mhz-RAM