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Eyefinity connection question

post #1 of 13
Thread Starter 
I have a Sapphire HD 5770 that has 2-DVI, 1-HDMI, and 1-DP
right now I have it connected to two monitors only using HDMI and DVI.

Will I be able to use a third monitor using the second DVI or will I have to use an active or passive DP to DVI adapter.
I have been reading a lot of conflicting info.

What I would love to do is have one monitor on HDMI, and the other two monitors using the DVI ports.
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post #2 of 13
AMD says you must use a (Mini)DisplayPort connection in combination with either 2xHDMI, 2xVGA, or 2xDVI
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post #3 of 13
Thread Starter 
That's what I find strange is that it says (Mini) Display Port.
Shouldn't I be able to use a Display Port to DVI adapter to the third monitor?
And would that need to be an active or passive type adapter?
It seems as though it could be a passive adapter.

So my end result could be
Monitor (1) DVI
Monitor (2) DVI
Monitor (3) DisplayPort to adapter to DVI on monitor
Edited by Mr_Torch - 4/2/11 at 9:03am
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post #4 of 13
Quote:
Originally Posted by Mr_Torch View Post
That's what I find strange is that it says (Mini) Display Port.
Shouldn't I be able to use a Display Port to DVI adapter to the third monitor?
And would that need to be an active or passive type adapter?
It seems as though it could be a passive adapter.
I say "(mini)" as some cards have either Mini or full DisplayPort ports. You're supposed to use whichever of the two you have.

As far as adapters go, lots of folks claim active adapters are necessary to make it work. Ignoring if your're running monitors larger than 1920x1200....The internet consensus is that it more has to do with the quality of the adapter. There are cheap passive adapters that work and there are expensive active ones that don't. There's a thread on OCN about using a DP->VGA adapter on this topic. I used that adapter, you can get it off NewEgg. Honestly, you won't be able to spot VGA versus DVI.

The biggest annoyance with DP is that it is nearly impossible to source adapters locally.

This is the one I use:

http://www.newegg.com/Product/Produc...82E16812115005
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post #5 of 13
Thread Starter 
Thanks I added that to my wishlist on the egg.
I would still like to be able to go to DVI on that third monitor,
So wouldn't the DisplayPort to DVI adapter work as well?
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post #6 of 13
Quote:
Originally Posted by Mr_Torch View Post
Thanks I added that to my wishlist on the egg.
I would still like to be able to go to DVI on that third monitor,
So wouldn't the DisplayPort to DVI adapter work as well?
DVI would work as well...but there adapters of both passive/active variety that do and don't work. And you're best served by finding someone who can verify by experience that a specific adapter (manufacturer and part number) works. Listings/certifications on AMDs website are not always accurate.
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post #7 of 13
What about the Sapphire Active Display Port adapters? Anyone had any experience with them? That is what I am considering getting for my third monitor.

On my 5770 I have two monitors setup as follows:

1 - HDMI Port
1 - DVI Port using a DVI-HDMI Adapter

Plan on adding the third to the DP using the Sapphire adapter to DVI
post #8 of 13
Thread Starter 
Well I'm going to get two more monitors like the one I just bought to match it all up
Asus VH238H HD HDMI 1080p LED LCD.
The second monitor I have running right now is an old 22" LCD, it will go to another comp
I will go with the DP to VGA if need be.
Thanks for your help.

Sheesh I get a new monitor that looks wonderful, and my brain is saying.....MORE hahaha
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post #9 of 13
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post #10 of 13
Thread Starter 
I just ordered the Sapphire Active DP-DVI adapter, a lot of good reviews on it concerning my exact card Sapphire HD5770 1GB and Eyefinity.
I looked and looked through there and didn't see this one.

Thanks everybody for all your help.

I think this adapter should have come with my card like the other adapters did...
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ADATA S510 120GB SSD, (2)Samsung F3 1TB, Seaga... Asus SATA DVD LinuxMint 13 x86 w/Mate Asus 23" HD 1080p HDMI LED LCD 
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