Mobo w/ intgr. ATI gfx that supports dual DVI/HDMI ?

gibman · 2008-07-01, 22:36

Hi!

I was getting excited when I read about the "GA-MA78GM-S2H" motherboard.
GIGABYTE - Support - Motherboard - Manual - GA-MA78GM-S2H (rev.1.0)

Its an AMD 700g chipset.
Only problem is that it doesnt simultaniously support dvi + hdmi.

I want to be able to connect the HTPC to a projector and a LCD tv at the same time.
Sadly this can't be done with the 700g mobos that I researched.

What are the alternatives here ?
1) wait for an amd 700gx mobo and hope that it does what I want ?
2) buy the 700g mobo and also buy a pci-e ATI 3200 gfx card --would this work ?

I'd rather not have to do (2).

/gibman

mzemina · 2008-07-02, 17:37

According to the manual you could connect HDMI and the D-Sub connectors (that is if the LCD has a D-sub connector or you could get an adapter).

ryan20021982 · 2008-07-02, 18:50

I have this card in my normal computer not my media center and use the hdmi and dvi at the same time everyday

Its also silent so nice for htpc's

http://www.newegg.com/Product/Produc...82E16814122037

ryan20021982 · 2008-07-02, 23:41

Just found this info about the 780g chipset, read this article about dual graphics

http://www.silentpcreview.com/article807-page1.html

bolders · 2008-07-03, 23:15

Hi

Im running a Gigabyte 780g MB - You can only have HDMI and VGA or DVI and VGA. You can not have DVI and HDMI output running together. If I remember correctly you make this selection in BIOS.

It may be worth looking to see if the Nvidia 8200 integrated boards can achieve this. If they cant then I think you are stuck with the options you have already listed

bolders

ryan20021982 · 2008-07-06, 03:55

Yes but the article above says you can use a video card and still use an output from the onboard graphics at the same time

bolders · 2008-07-06, 22:36

Yes this is true u can do this

But if you are installing a discrete graphics card then its more than likely that you could output DVI from both outputs of the graphics card and would not need the onboard graphics at all (I know the HIS silent ATI3450 can do this) - the OP wanted to avoid this scenario if possible. Also if I were to install a discrete card into my 780g I would almost certainly disable the onboard video to reduce the heat in the case - the video heatsink on the MB gets bloody hot.

bolders

2008-07-01, 22:36	#1 (permalink)
gibman Portal Developer Join Date: Oct 2006 Location: Aarhus Posts: 629 Thanks: 4 Thanked 53 Times in 43 Posts Country: My System	Mobo w/ intgr. ATI gfx that supports dual DVI/HDMI ? Hi! I was getting excited when I read about the "GA-MA78GM-S2H" motherboard. GIGABYTE - Support - Motherboard - Manual - GA-MA78GM-S2H (rev.1.0) Its an AMD 700g chipset. Only problem is that it doesnt simultaniously support dvi + hdmi. I want to be able to connect the HTPC to a projector and a LCD tv at the same time. Sadly this can't be done with the 700g mobos that I researched. What are the alternatives here ? 1) wait for an amd 700gx mobo and hope that it does what I want ? 2) buy the 700g mobo and also buy a pci-e ATI 3200 gfx card --would this work ? I'd rather not have to do (2). /gibman __________________ "It's all a big foodchain. We eat shit and shit eats us."

2008-07-02, 17:37	#2 (permalink)
mzemina Retired Team Member Join Date: Feb 2005 Location: Ft Smith, AR Posts: 2,028 Thanks: 33 Thanked 12 Times in 12 Posts Country:	According to the manual you could connect HDMI and the D-Sub connectors (that is if the LCD has a D-sub connector or you could get an adapter). __________________

2008-07-02, 18:50	#3 (permalink)
ryan20021982 Portal Member Join Date: Jun 2008 Posts: 24 Thanks: 2 Thanked 0 Times in 0 Posts Country:	I have this card in my normal computer not my media center and use the hdmi and dvi at the same time everyday Its also silent so nice for htpc's http://www.newegg.com/Product/Produc...82E16814122037 Last edited by ryan20021982; 2008-07-02 at 18:52.

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2008-07-02, 23:41	#4 (permalink)
ryan20021982 Portal Member Join Date: Jun 2008 Posts: 24 Thanks: 2 Thanked 0 Times in 0 Posts Country:	Just found this info about the 780g chipset, read this article about dual graphics http://www.silentpcreview.com/article807-page1.html

2008-07-03, 23:15	#5 (permalink)
bolders Portal Member Join Date: Feb 2007 Posts: 65 Thanks: 3 Thanked 4 Times in 4 Posts Country: My System	Hi Im running a Gigabyte 780g MB - You can only have HDMI and VGA or DVI and VGA. You can not have DVI and HDMI output running together. If I remember correctly you make this selection in BIOS. It may be worth looking to see if the Nvidia 8200 integrated boards can achieve this. If they cant then I think you are stuck with the options you have already listed bolders

2008-07-06, 03:55	#6 (permalink)
ryan20021982 Portal Member Join Date: Jun 2008 Posts: 24 Thanks: 2 Thanked 0 Times in 0 Posts Country:	Yes but the article above says you can use a video card and still use an output from the onboard graphics at the same time

2008-07-06, 22:36	#7 (permalink)
bolders Portal Member Join Date: Feb 2007 Posts: 65 Thanks: 3 Thanked 4 Times in 4 Posts Country: My System	Yes this is true u can do this But if you are installing a discrete graphics card then its more than likely that you could output DVI from both outputs of the graphics card and would not need the onboard graphics at all (I know the HIS silent ATI3450 can do this) - the OP wanted to avoid this scenario if possible. Also if I were to install a discrete card into my 780g I would almost certainly disable the onboard video to reduce the heat in the case - the video heatsink on the MB gets bloody hot. bolders