Quote Originally Posted by mean6 View Post
Ok, to explain the situation I am in now. My system will power up fine at stock settings, and up to 4.3 oc no problems. Sleep mode even functions noramally. Here's where I am kinda confused, I can go into the bios and set it to 4.8 oc, with 1.4v, using offset and level 3, save and exit, and it will boot into windows no problem. It will hold up through 2 hours of Prime, and a long session of C.O.D. The problem is, if I shut it down, then power up again later, all I get is a blinking cursor. If I reboot, enter bios, then click save and exit, it will boot into windows no problem. So, is this a cpu issue or mobo issue? Just want to know, cuz I am planning on exchanging something, either mobo, or processor. Thanks for the help.
If the CPU were busted, it wouldn't boot at all.
it has NOTHING to do with him not running prime for 2 hours. I can make prime crash in the first MINUTE, from low vcore, but my CPU boots *every* time. The fact that he can enter windows and game for hours tells me that the CPU is working perfectly. These things either work, or they don't work.

The blinking cursor you have is a symptom that others have when PLL overvoltage either needs to be enabled, or when you're outside of the frequency range where PLL overvoltage works. It sounds to me like your board is having issues setting PLL overvoltage on a cold boot. Have you tried toggling this setting, and seeing what happens if you enable it, or if you disable it, and then try to cold boot?

Of course there are other reasons for a hanging cursor like that also...