HD6870 with dual-link DVI & VGA?

Vikroda

Senior member
Apr 9, 2003
501
0
0
I just upgraded my video card with the recent XFX HD 6870 deal from newegg. I have a Dell 3007 that I had connected to my old card along with my X1 video projector. After banging my head and searching I discovered that since the 6870 only has one dual-link DVI I cannot plug both monitors in at the same time (I can plug the 3007 in the single-link DVI but my resolution drops) (Apparently the DVI-> VGA converter requires a dual-link?). The reason I upgraded was that I wanted to connect a 3rd monitor (Dell 2407) but I can't get my original 2 to work.

How do I solve my problem (I'm considering moving back to my old gtx460 and selling this) short of getting new monitors with display port interfaces?

I was looking at a minidisplayport-> vga adapter at monoprice http://www.monoprice.com/products/p...=10428&cs_id=1042802&p_id=5107&seq=1&format=2 but I'm not sure if a need an active adapter.
I thought of a minidisplayport->active dual-link dvi to connect to the 3007 but they are pretty expensive (~$90?) and I'm not sure if they would work.

Also, when I tried to connect my pj through my receiver via HDMI the dual-link display goes blank as soon as I turn on my receiver :|. (And I think the receiver doesn't down sample the HDMI signal to component). I couldn't get the HD audio to work either but I think I figured that part out (I need to install the realtech HDMI audio driver).

Sorry for the long winded post. So is there an easy way to solve my problem or should I just go back to the gtx460 and forget about the 3rd monitor?
 

SonicIce

Diamond Member
Apr 12, 2004
4,774
0
76
i bet u could clip some of the pins off the dvi-to-vga adapter to make it fit and it would work. would that help?
 

Vikroda

Senior member
Apr 9, 2003
501
0
0
i bet u could clip some of the pins off the dvi-to-vga adapter to make it fit and it would work. would that help?

The adapter actually does fit on the single dvi port but I don't get a video signal. I only get a video signal if I connect it to the dual-link port (which I want to reserve for the 3007)
 

gorobei

Diamond Member
Jan 7, 2007
3,713
1,067
136
you are 1 gen too early on all your monitors. the 24 and 30 inch dell '08s both came with displayport native.

connect the 3007 and 2407 on the dvi and test if they work properly. if they do, then get a dp to vga adapter for the projector. all dp-vga adapters are by definition active.
 

Vikroda

Senior member
Apr 9, 2003
501
0
0
you are 1 gen too early on all your monitors. the 24 and 30 inch dell '08s both came with displayport native.

connect the 3007 and 2407 on the dvi and test if they work properly. if they do, then get a dp to vga adapter for the projector. all dp-vga adapters are by definition active.

I'm pretty sure I can get both 3007 and 2407 to work since the 2407 is a single-link DVI. I'll give the monoprice adapter a try. Thanks.
 

Vikroda

Senior member
Apr 9, 2003
501
0
0
...get a dp to vga adapter for the projector. all dp-vga adapters are by definition active.

Just got a $12 minidisplayport to vga adapter from amazon (free prime shipping) and it works fine. Now I have my 3 displays working. Thanks, gorobei!
 

gorobei

Diamond Member
Jan 7, 2007
3,713
1,067
136
enjoy the glory that is 3+ monitors. I'm half ready to find 2 more 2408wfp or zr24 so i can try eyefinity5(5x1 portrait)
 
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