New computer is showing black screen

[malimeda]

I just bought and assembled computer and double checked every cable, every slot etc... when i start computer, fans start to work and there is no weird sounds or anything, but my screen is black, i tought i moved some of the cables when i installed new components, but i checked million times and everything is alright.... Please help

 

[James Mason]

Does your MOBO have onboard graphics, and are you using a graphics card as well? if so, plug the display into the motherboards graphic ports, and then go into the BIOS and tell it to not use the onboard graphics as the primary display.
Or vice versa, if you it plugged into the mobo and not the GFX card.

If that doesnt work, post your full system specs and we'll go from there.

 

[malimeda]

i tried with my old graphic card, but it's same. specs:MOBO= MSI FM2-A55M-E33 CPU=Amd fmx2 3.4 ghz GPU=radeon hd 5750 1gb and i tried with integrated graphics on cpu and nothing changes

 

[James Mason]

mmm, is your monitor turned on? are the cables on the back of the monitor fully plugged in? (try re-plugging them) is the monitor set to display the right input?
have you tried using the onboard graphics after taking the GPU out?

 

[Chicano]

I've seen this problem when a PC has been stored for a while... Solved it resetting the BIOS with battery off for 5-10 minutes.

 

[malimeda]

mmm, is your monitor turned on? are the cables on the back of the monitor fully plugged in? (try re-plugging them) is the monitor set to display the right input?
have you tried using the onboard graphics after taking the GPU out?

yea, monitor is turned on and all the cables are firmly in, i tried replugging, yeah monitor is set to right input, and yes i tried usig onboard graphics when i took GPU out...

 

[James Mason]

likely, your mobo doesnt have an onboard speaker, and unless your case came with one, you won't hear any beep codes. You can buy them though, from a local electronic store for pretty cheap (like $2 maybe) and then hook it up to the motherboard and turn it on and see if it beeps at you, then you can figure out what the beep codes mean. Generally if it's not a single short beep, there is something wrong.