VGA on motherboard:blackscreen...

[Misscyber]

Got a new tower, checked it inside, all looks good, except for an AC97 cable unplugged, and the VGA on the motherboard showing a black screen. The computer has a GeForce gt730 graphics card that also has a VGA port. When I plug in my monitor to the GPU VGA it works fine and the pc performs perfectly.

So what's up with that? Why does one VGA work and one doesn't? Should I be concerned that the motherboard is bad or what?

Also, should that AC97 cable be plugged into something? I searched and found it possibly is the cord for audio? But the audio works fine.

Need some insight people! Thanks!

 

[i7Baby]

Post your complete and detailed build.

The motherboard will only output vga if you have a CPU with integrated graphics and it's enabled.

 

[Ketchup]

Audio - you usually select digital or analog. If digital is being used, the analog may be unavailable.

Video - either your BIOS has been set to onboard video only, or as i7Baby pointed out, you don't have a CPU with integrated graphics.

Would help to know what you have.

 

[Misscyber]

Alrighty, hopefully I can get as detailed info as you guys need.

Lets see, the motherboard is 760GM-P34(FX)

AMD FX-4300 Quad-Core Processor 3.80GHz
8 GB Ram
NVIDIA GeForce GT 730
NVIDIA High Definition Audio
NVIDIA Virtual Audio Device (Wave Extensible)(WDM)
Realtek High Definition Audio

And yeah, not sure what else to post o_o'

 

[Ketchup]

Yeah, the board's ATI Radeon 3000 may auto switch off when you install a video card. You should be able to go into the BIOS and switch it to on.

 

[Misscyber]

Would you recommend that I try to switch it on to see if it works? And if I do, will both VGA ports work rather than switching now to the boards one?

 

[Ketchup]

How many screens do you have? My Intel and Nvidia cards both work, but I never used them both together.

It's nice to know one has a backup if/when the video card goes out. Other than that I would never use it.

 

[LTC8K6]

Well, it supports hybrid crossfire, so both GPU's can be active at the same time...

 

[LTC8K6]

I am currently posting from a system with an AMD 780 chipset, and I can use the board's Radeon HD3000 at the same time as the GTX550Ti that is installed.

Both adapters show up in GPU-Z and Device manager, and both are outputting video.

Not sure if your 760 chipset will do that, but it should.