My computer was running fine yesterday until my liquid cooling setup arrived. I was took out my stock HSF from my Abit IS7 board and from my northbridge chipset. I also took out my 9700pro. Suddenly I realized that forgot to check if the option "SHUTDOWN if CPUFAN failed" was enabled. So I put everything back and boot it up, but there is no picture. I could see my motherboard LED were on but no picture. So I assume it was my video card and tried it on my old computer and it worked. Now I am not sure what the problem is now. Furthermore, I did not hear any warning beeps. It just stayed on. I'm really frustrated now that I have no idea what could be the problem.