Re: P8P67 No video / boot
Please list all of your system specifications. Do you have the P8P67 or just one of the many versions of the P8P67? What memory are you using and what is the speed and latencies? What power supply are you using? etc...
When you power the system up is the DRAM LED lit up? Have you read the section in your manual about the MemOK switch? I have the P8P67 Deluxe so my manual is slightly different than yours, but if you have the P8P67 I downloaded its manual and the section on the MemOK switch is located on page 2-16. The MemOK switch and DRAM LED are located next to each other, on the P8P67 they will be located at the top right hand corner of the mobo. On my mobo, the Deluxe model, they are located a few inches lower, so depending upon your exact mobo I can't tell you exactly where to look.
However the MemOK function works the same regardless of the P8P67 version. If the DRAM LED is lit then your having a memory problem. This problem may be a compatibility problem, defective memory problem or an installation problem. The most common problem is with the installation of the memory modules. I hate these Asus memory slots and the use of a single locking clip. You have to make sure the memory is fully inserted into the slot at the end without a locking clip.
If your positive the memory is installed correctly and the DRAM LED is lit then press and hold the MemOK switch until the DRAM LED starts flashing. The bios will then try various failsafe memory settings in an attempt to find compatibility. If after the process completes the DRAM LED is still lit then I would check the memory installation again. After exhausting all of your options, if the DRAM LED is still lit then you should try your memory in a different compatible pc or try some different memory in your pc.
To be honest my computer acted just like this immediately after I killed my original i7 2600K by over volting it. But a crappy power supply could cause similar issues as well as a overheating cpu.