New build : monitor no signal, fans work !!!

[tau77]

Hi all,

My system:

CPU: AMD Phenom IIx6 1090
Mainboard : Gigabyte GA-880GM-USB3 (rev. 3.1)
Ram: 8GB TeamGroup Elite DDR3-1333 DIMM CL9 Dual Kit
PSU: 600W Powercolor PG-600AE-80+/12F2
Graphic on board

Frist, my english is very bad xD . I will try my best to explain it .

I build my system 3 weeks ago but I dont have a monitor to test it. Yesterday I buy a iiyma monitor. When i try to start my PC it shows no signal and goes to powersaver mode, all the case fans,led works,cpu fan works, hdd runs, I can open close the DVD burner.

After reading 1000 of Website, try all the methods :

-Replace Ram, use only 1, use eraser on it.
-Cmos reset (take out the battery overnight)
-Start the pc without battery
-let the CPU run without fan for 5sec, its getting hot .I think it still works.
-Hold down the power button for 30sec .

One time, one time only, I see it showing "Cmos checksum error + load default bla bla" but my keyboard freezed, cant choose. When i restart its black again.

Now I am here , searching for your helps. What the hell I do wrong ???? Is It the mainboard or the PSU ?? I spend too much for this ******* PC .

Thank you for reading .

 

[tjosborne]

there might be another plugin on top of mobo that needs juice. i think it powers cpu. my motherboard was on and fans, just no display. i hope that helps you, if not sorry

 

[tjosborne]

o ya i forgot to mention that i ran into a simular problem and i didnt plug that cable in

 

[AndyC682]

at a guess i would say your cpu's fried

 

[tjosborne]

ya fried or not powered. i looked up your mobo. is your connecter on left of processor getting power?

 

[tau77]

How can i Check that CPU has Power or not? I plug both cable 24 pin and 8 Pin.
But how can a New CPU break?

 

[tau77]

I just find out something strange. If I take out the case fan, the Cpu fan runs 2 sec then stop.I must turn off the powerswitch from PSU and turn on to power the PC again. I plugin in the case fan cable then all run non stop .

Is my PSU broken ???