Radeon 5870 E6 (EyeFinity6) Questions

visbits · 12-25-10, 10:13 AM

Hi Guys, I picked up a Diamond 5870 Radeon Eyefinity 6 edition this weekend.

I was curious on how exactly the *6 display ports* work....
If I plug in 2 monitors via DP>DVI I can run them as individual displays, however if I plug in any other port it can only be a *copy* of one of the 2 primarys, this also disables my 2nd GPU (HD2600) and 2 other displays.

I was hoping that with the 6 display ports I could run 6 individual desktops or a desktop spanned across all 6. Is this a limitation of the DVI adapters and it would work with full display port connections?

Any info or documentation on this would also be appreciated.

--Merry Christmas everyone!

Seebs · 12-25-10, 02:36 PM

If you want to hook up more than two monitors to the card; one of them MUST have DP connectivity --> Straight from card's mDP port to DP port on monitor; not via mDP-DVI adapter. Once one of the displays is hooked up via DP; you'll be able to span all 3 displays or use them as separate displays as well... But the requirement for more than 2 displays is that one of them have a DP input.
You can read more here: 5870 Eyefinity 6 Review

visbits · 12-25-10, 04:03 PM

Thanks for the info, that was a great read!

Guess I can go ahead and order 3 dell u2410s.. been waiting for a reason to get them.

72" if IPS beauty.

MattNo5ss · 12-25-10, 04:31 PM

Love my U2410

All the U2410 monitors should come with A01 firmware now, so no need to worry about pink/green tint or dithering issues.

Requiring a DP connection is the only downside to Eyefinity...

CompuTamer · 12-25-10, 05:11 PM

Quote:

Originally Posted by MattNo5ss

Love my U2410

All the U2410 monitors should come with A01 firmware now, so no need to worry about pink/green tint or dithering issues.

Requiring a DP connection is the only downside to Eyefinity...

I don't think there's much that could be done about it either. DP is digital, right? Therefore removing the need for a RAMDAC for that output, if my logic is correct?

Most video cards have two RAMDACs, so they can only run two displays. Eyefinity goes around this with the DP. It's digital, so there's no need for a third RAMDAC.

This is all just theory of course.

Only posting to see if by some chance i might be right. Haha.

Oh, and Merry Christmas

visbits · 12-25-10, 08:07 PM

Hoping they go on sale tomorrow or monday so I can pick them up for around $410 each...

12-25-10, 10:13 AM	Thread Starter #1
visbits Member Join Date: Jan 2009	Radeon 5870 E6 (EyeFinity6) Questions Hi Guys, I picked up a Diamond 5870 Radeon Eyefinity 6 edition this weekend. I was curious on how exactly the 6 display ports work.... If I plug in 2 monitors via DP>DVI I can run them as individual displays, however if I plug in any other port it can only be a copy of one of the 2 primarys, this also disables my 2nd GPU (HD2600) and 2 other displays. I was hoping that with the 6 display ports I could run 6 individual desktops or a desktop spanned across all 6. Is this a limitation of the DVI adapters and it would work with full display port connections? Any info or documentation on this would also be appreciated. --Merry Christmas everyone! __________________ Using Ubuntu does not make you good with linux. HEATWARE
	QUOTE Thanks

12-25-10, 02:36 PM	#2
Seebs Fronting as a Mod Member Join Date: Aug 2010 Location: Sunshine State	If you want to hook up more than two monitors to the card; one of them MUST have DP connectivity --> Straight from card's mDP port to DP port on monitor; not via mDP-DVI adapter. Once one of the displays is hooked up via DP; you'll be able to span all 3 displays or use them as separate displays as well... But the requirement for more than 2 displays is that one of them have a DP input. You can read more here: 5870 Eyefinity 6 Review __________________ Daily Driver: GA-890FXA-UD5 - Ph II X6 1090T - 16GB DDR3 1333MHz - HD 5670 - Venomous X Black + 260 CFM San Ace - VX450W - CM 690 II Advanced Join the "Benching Team" - We have secret sauce! - OptyTrooper: GPUs are for burning not playing games anyway Kona on League of Legends: This game sits about as well with me as a gallon of prune juice does, and the results are just as nasty. I done got Pinked... Be sure to pre-tin everything (even soldered stuff!) with leaded solder. None of the RoHS junk. You want good old fashioned toxic heavy metals. ~ Bobnova
	QUOTE Thanks

12-25-10, 04:03 PM	Thread Starter #3
visbits Member Join Date: Jan 2009	Thanks for the info, that was a great read! Guess I can go ahead and order 3 dell u2410s.. been waiting for a reason to get them. 72" if IPS beauty. __________________ Using Ubuntu does not make you good with linux. HEATWARE
	QUOTE Thanks

12-25-10, 04:31 PM	#4
MattNo5ss b4n4n4 dr4g0n d00m3d m0d3r4t0r Overclockers.com Editor Join Date: Aug 2008 Location: AL	Love my U2410 All the U2410 monitors should come with A01 firmware now, so no need to worry about pink/green tint or dithering issues. Requiring a DP connection is the only downside to Eyefinity... __________________ i7 3770K \| ASUS Maximus V Gene \| 4x2GB Dominator GT DDR3-1600 6-6-6-20 \| EVGA GTX780 SC ACX \| 256GB OCZ Vertex 4 \| SeaSonic X750 E8700/E6750/P4 631 \| Rampage Extreme & EP45T-Extreme & Commando \| DDR2 D9 or any DDR3 \| 1 of 20ish GPUs \| 50GB OCZ Vertex 2 \| SeaSonic SS-1000XP O/C Author Profile \| HWBot Profile \| Heatware (91-0-0) \m/ OverClockers mATX L33T Club \m/ Projects: Copper-Framed, MDF Station \| PVC-Framed, MDF Station \| Custom Cascade Cart/Case \| Untitled TJ07 Build
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12-25-10, 08:07 PM	Thread Starter #6
visbits Member Join Date: Jan 2009	Hoping they go on sale tomorrow or monday so I can pick them up for around $410 each... __________________ Using Ubuntu does not make you good with linux. HEATWARE
	QUOTE Thanks

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