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  AM3 mobo w/ hdmi/dvi/vga 
 
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R S Feb 09, 2010, 12:05am EST Reply - Quote - Report Abuse
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Edited: Feb 09, 2010, 12:05am EST

Replies: 5 - Views: 984
I am building a new computer which will be my 5th or so. I decided to go the Phenom II X2 route and possibly unlock the other 2 cores if possible. If not, not a big deal. I have a question regarding motherboards that have DVI/HDMI/VGA all included with built in video. Since these boards have 3 video inputs can you use all 3 at the same time or are you limited to just one input? Also, if you had a dual dvi video card, can you use both dvi slots of the video card plus X inputs of the motherboard? The reason I ask is I want to have a multi-monitor set up at some point and I'm too much of a cheapskate to get an SLI motherboard. I would never get more than 3 monitors and as far as video cards go, I don't need a good one as long as handles multi displays well.


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kOrny Feb 09, 2010, 01:22am EST Reply - Quote - Report Abuse
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Edited: Feb 09, 2010, 01:23am EST

 
>> Re: AM3 mobo w/ hdmi/dvi/vga
You can only use 1 of the 3 ports at a time from the onboard video. If you are using a video card, you can either use it or the onboard. Can't use both at the same time.

Some of the newer ATI cards support 4+ monitors.

~Vel Feb 09, 2010, 10:27am EST Reply - Quote - Report Abuse
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Edited: Feb 09, 2010, 10:28am EST

 
>> Re: AM3 mobo w/ hdmi/dvi/vga
k0rny said:
You can only use 1 of the 3 ports at a time from the onboard video. If you are using a video card, you can either use it or the onboard. Can't use both at the same time.


Sorry k0rny, but this is horribly untrue. I had a Dell with a P4 and I was able to use the VGA on-board graphics (Intel) and the discrete card's S-Video and DVI at the same time. Though, I couldn't use S-Video and VGA on the ATi at the same time. (Yes, 3 outputs at once, I didn't keep it like this for long though).

Right now on my current build, I'm able to use the onboard's DVI and VGA at the same time.

Now, I can't guarantee that all three will work at the same time, but the VGA will most definitely have output simultaneously with either HDMI or DVI. I can't guarantee both at the same time due to my experience with having the choice of "one or another" between the VGA and S-Video. Though, the card was an ATi Radeon 9200 Pro, a very old card. For the full specs of both of these computers to check for compatibility, please check my profile.

__________________________
Desktop: A4-5300 3.4GHz | MSI FM2-A85XA-G65 | 8GB | FireGL V7700 | 500GB | Windows 7 Ultimate x64 |
Laptop: Matte 15" MacBook Pro | i7 2675QM 2.2GHz | 8GB | 500GB | Mac OS X 10.8 | More in profile |
kOrny Feb 09, 2010, 12:59pm EST Reply - Quote - Report Abuse
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>> Re: AM3 mobo w/ hdmi/dvi/vga
Ah sorry. My mobo only let me use 1 onboard at a time (VGA or DVI or HDMI), and when a video card was installed my onboard didn't work, only the video card would output video.

guess all motherboards are different.

R S Feb 09, 2010, 03:26pm EST Reply - Quote - Report Abuse
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>> Re: AM3 mobo w/ hdmi/dvi/vga
so using both digital inputs simultaneously is most likely not possible?

~Vel Feb 09, 2010, 05:10pm EST Reply - Quote - Report Abuse
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Edited: Feb 09, 2010, 05:13pm EST

 
>> Re: AM3 mobo w/ hdmi/dvi/vga
Well, after k0rny's experience, I can't be certain. You could always try contacting the manufacturer.

Either way though, to answer your original question, you would not need an SLI board if you had both onboard graphics as well as a dedicated card.

__________________________
Desktop: A4-5300 3.4GHz | MSI FM2-A85XA-G65 | 8GB | FireGL V7700 | 500GB | Windows 7 Ultimate x64 |
Laptop: Matte 15" MacBook Pro | i7 2675QM 2.2GHz | 8GB | 500GB | Mac OS X 10.8 | More in profile |

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