Topic Title: Problems with 3 monitor setup.
Topic Summary: Can't connect the third monitor.
Created On: 07/16/2012 01:44 PM
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 07/16/2012 01:44 PM
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XenGi
n00b

Posts: 2
Joined: 07/16/2012

Hi,

I have a HD5770 with 2 DVI, 1 HDMI and 1 DP port. My 2 TFT screens are connected to the 2 DVI ports. Now I have connected my TV to the HDMI port and I want that to be the primary monitor surrounded by my 2 TFT screens.

The problem is when I try to connect the third monitor the AMD tool tells me it's not possible and I have to remove a screen to add a new one.

I searched the web and found some guys who told me I have to connect the third monitor via DP. So I bought a DP to HDMI adapter and connected the TV with the adapter to the DP port.

This doesn't work. The AMD tool still tells me that I can't connect the third screen.

So now a friend told me I have to buy a secondary grafics card and connect them over crossfire. Is this correct? Will my HD5770 work with a HD5450 in Crossfire mode and will I be able to connect the third monitor with the secondary card? I have no idea how to archive this.

Last time I connected more than 2 monitors to a PC was with an AGP and a PCI card.



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XG_

 07/16/2012 07:55 PM
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Earnhardt
Case Modder

Posts: 820
Joined: 09/11/2008

http://www.amd.com/us/products/technologies/amd-eyefinity-technology/Pages/eyefinity.aspx



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AMD Phenom II 1100t @4.0Ghz /Asus sabertooth 990fx/2x Gigabyte 3G 7950's in crossfire/500G samsung 840 ssd/16G G-Skill Ripjaw 1600/2-samsung 24" monitors 1920X1200/Corsair AX1200W psu/W7 pro 64,G19 keyboard,Roccat kone pure mouse,Cooler master HAF932,Corsair H100i water cooler,Zalman ram cooler.Sound Blaster X-Fi Titanium Fatal1ty Champion Series,Logitech Z5500 speakers,Roccat Kave 5.1 headset.

 07/19/2012 04:48 PM
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Vantharas
Polygon Pusher

Posts: 3504
Joined: 03/01/2009

Active display port adapter. Not just DP port.



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I5 3570K@4~5.0ghz: Gigabyte GA-Z77X-UD3H:Corsair Hydro H110 :16GB Corsair Vengeance DDR-3 1600: XFX Radeon 7950 @ 1100/1575 : Corsair AX 860 PSU: x1 WD Black 1TB HDD's: 90GB Agility 3: 960GB SSD : Creative Labs X-FI:Corsair 500R Arctic White Edition:3 22inch Monitors Eyefinity @ 5294x 1050 : Alienware Tact-X Keyboard: Razer Naga :Corsair Vengence 1500 Headset: Corsair SP2500 Speakers

 07/19/2012 08:15 PM
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XenGi
n00b

Posts: 2
Joined: 07/16/2012

So I bought a DP 2 HDMI adapter that doesn't work and now I have a active DP 2 DVI adapter and everything works perfect.

The best thing is, I found the answer why my grafics card is too stupid to operate on 3 monitors. Because it has only 2 clocks to sync 2 signals. the active DP adapter has a chip with a third clock on it so that it works.

That's ok. It works.



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XG_

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