Can I use Motherboard VGA and Graphics Card will still perform?

You can only use either the Onboard (connected to the mobo) or Dedicated graphics card (graphics card in the pci e slot) You cannot use both.

Most graphic cards will come with an adapter for Hdmi to vga, DVI to vga etc.

You can use both if you are planning on using a multi display setup yes. Otherwise I would just use your graphics card.

Okay, so a XFX 7770 would come with an adapter? As its a cheap card?

I should of looked before asking and It doesn't! Oh noes! What do I do now that I can't use my dedicated graphics when I get my build?

[/flash]

That depends on if the MOBO supports it. Typically your going to be forced to use one or the other. (in my experience)

For multi display I'd still only use the graphics card.

DVI to AVG adapters are cheap. Like $5. Run to your local best buy and grab one when your card comes in.

Okay great! Thanks Guys!

An adapter for what VGA. Typically they do but its hard to say however you normally can pick them up. I was watching a Linus tech tips video and I recall him saying that not all dvi connections are capable of going back to vga.

I agree less of a hassle honestly.

Great Point! +1

@OP here is a list of the different interfaces for DVI. What bigshootr is talking about (if you refer to the link) you'll see that DVI-D interfaces lack the C1, C2, C3, C4. I may or may not be correct here. But im assuming these would be an example of DVI that cannot convert to VGA because of the lack of those "analog" pins. So worth checking first.

Again, Don't take what im saying as 100% a little research would be healthy for the wallet  .

http://en.wikipedia.org/wiki/Digital_Visual_Interface

*edit* just found this part. "A passive DVI-to-VGA adapter. Requires the analog signals provided by DVI-I or DVI-A."

okay, great, im going to use a passive one i think, is it one like this?

http://www.amazon.co.uk/gp/product/B004G3WCLM/ref=ox_sc...

I hope this works, i don't want to get a new monitor!

It's a coin flip your card may or may not support it based on the pin layout of the dvi connection.

okay, cool, i am sure the XFX card that i am getting supports it. Thanks for all your help!

Not a problem. So unoriginal its DVI-D that doesn't have the pins supportive of a VGA adapter?

To my understanding yes. But I have zero "live" testing with it. Tbh i haven't really paid much attention to it when i have used an adapter  

But ya.. The DVI-D are the interfaces that are missing the analog 1 2 3 and 4 pins/slots.

Yea, I gotcha. VGA has been heavily phased out anyway. I'm using a Display Port cord now. I like it a lot thus far. With the lower quality of the VGA cable it just doesn't make sense anymore really other than to support legacy monitors.

Agreed. Love display port, I think it will be to hdmi what Dvi was to vga eventually. Just wished the monitors that supported display port weren't so darn expensive!

Ah and just an fyi. Found in the reading.

DVI-A = Analog only
DVI-D = Digital only
DVI-I = Integrated and supports both (love how we can't just use this as a standard and save everyone money   )

I really hope you are right with display port its just really great no royalty cost on the cables which leads to cheaper cables. And DVI-I is great unless you are aiming for a higher resolution displays they won't work.

Is that a bandwidth limitation? Or is it because it is limited to RGB only?
I don't know to to much about graphics but always learning.

I know display ports bandwidth is something ridiculous like over 21 Gbits/s where as dvi is like 4

I think it may be a bandwidth limitation I know that the digital versions are needed for 2560x1600 and for 120hz screens as well if I'm not mistaken.