Hello, I'm building a new system, here are the components:
-case codegen mod. 6236 with 580W power supply
-mb GA-P55-USB3 rev.2
-cpu i7 860
-2x2Gb kingston valueram cl9
-ati HD5670
-2xhd 500gb sata Seagate
-mast. dvd LG
-monitor asus VH198S
At the moment I'm working outside the case. I put the cpu on mb (GA-P55-USB3), thermal grease and heatsink, then connect heatsink fan, install ram modules (kingston valueram 2gb 1333mhz each cl9) in slot 1 and 3, then install vga (sapphire hd5670 with no additional power needed). I connect front panel reset switch, on/off switch, power led and hd led, my case haven't any speaker installed. Then I connect 20+4 pin atx power and 4pin cpu power in 8 pin 12v slot (since my power supply haven't the 8pin eps12v connector, PS is 580w by Codegen). When I turn the system on I get 4 phase led on all the time, cpu fan is working as well as gpu fan but there is no video output! I tried to clear cmos using the jumper, but I get nothing back. I tried to remove both vga and ram modules, but I get the same, I tried to use just one module in each slot, but nothing...
Can you help me to find the problem? Is maybe cause I used the 4pin atx instead of 8 pin eps12v? If I remove the 4pin atx connector I get the system working for 3 seconds then gets off then starts for 3 seconds again and gets off again.. and go on in loop.
I'm worried about I hear no beeps at all from the buzzer even if I turn the system on with no ram,cpu or video card installed on it, for that test I used a buzzer taken from another case, assuming it's working.
please help me!!!
many thanks