jlh66z :
Hi Amesicle
I have the exact same problem have even replaced the asrock pro4 motherboard with an asrock pro 3 (both brand new) same result runs great for an hour or so then no video output. all case fans and CPU fan still work.
Did you work it out? VERY frustrating!! have built over 10 machines now & never had a problem..I'm stumped...have checked everything replaced all leads, power supply monitor......ready to throw in the ocean!!
Regards jlh66z
Hi jlh66z,
Hopefully you've worked it out by now, sorry for the late response! I did work it out, though the cause is still quite mysterious to me. First, I unplugged the monitor and cycled power. Then I opened up the case and made sure everything was plugged in. Then, I simply hooked the monitor up to the GPU... and it started working again. I was prepared to reset CMOS if I still didn't make progress.
Also, after I got the computer up and running again, I had no problem downloading the driver for the GPU. Strange business, but there is always something when building your own rig. Anyways, since then the computer has been up and running great, and I have had no repeat of problems.
It is strange that you get video signal temporarily, and then nothing... my first thought is the GPU (if you are using one). I really hope you're no longer having issues! It is SO frustrating!!!