I recently bought a V1 hp z600 with 2 xeon e5506
s, i have checked nearly everything on the computer including replacing the mobo, gpu, ram. the power supply shows a green light which means its ok, but everytime i start it up i get no display, no keyboard or mouse LED
s and a beep code that doesnt repeat- 1 long, long pause and 3 long beeps after. i have searched everywhere for this code and couldnt find it. not sure what to do now.