Everything works but nothing on monitor

[nwbrn]

i was getting this failure sometimes with my amd sempron 2800 processor. i found a new processor amd athlon64 3700. i tried this 3700 but it worked a few times and i am getting no screen failure everytime now. 2800 is working very well now. by the way, my motherboard is asus k8n.

 

[r_manic]

Most likely an issue with your display (have you tried others with your build?) or the motherboard itself. For clarity though, what powers your display? A dedicated graphics card or the onboard video of your K8N?

 

[shortstuff_mt]

I've found that "no video" problems are often caused by RAM problems. I would go through this checklist:

http://www.tomshardware.com/forum/261145-31-read-posting-boot-problems