Topic Title: R7770 Ultra Overclock, Multi Monitor problem
Topic Summary:
Created On: 09/22/2012 06:49 PM
Status: Post and Reply
Linear : Threading : Single : Branch
Search Topic Search Topic
Topic Tools Topic Tools
View similar topics View similar topics
View topic in raw text format. Print this topic.
 09/22/2012 06:49 PM
User is offline View Users Profile Print this message

Author Icon

Posts: 1
Joined: 09/22/2012

So I have no idea where to start! so ill try to post as much information as possible.


I just upgraded from a ATI Radeon HD 4850, to a Radeon R7770 Ultra Overclock edition.


I was running 4 monitors before i switched, 2 on the main board. (1 VGA, 1 HDMI) and 2 on the mother board. 2 DVI


Well the new XFX Radeon R7770 card has the 2 DVI, 1 HDMI and 1 Display port. 


So i conntected 2 moinotrs to the DVI, then i put another on onto the HDMI port on the card. Then i conntected the last monitor to the on board!


heres where it all gets tricky! because it worked before the other way, but i would rather the 3 be on one card and the off monitor on my on board ( i wanna do the eyefinity thing!)


well my computer and AMD Catalyst(the newest one for the card just upgraded) both see all 4 monitors! thats great! Well it will only display on 3 of them at any one time! no so great!


I get an error saying i need to turn one display off before enabling another one! well you do that and it just swaps monitors. am i missing something to get them all working at the same time? its the 1GB DD5 card. It worked before, so i am guessing it has something to do with the card!


Some additional information, i took the old card out of PCIex16(second slot) and put the new one in there. and there is a "switch card" in the PCIex16 slot(labeled 1) my maunal for my board says first card install in second slot, then if you want to crossfire, i put the second card into the first slot. (this is all rambling information considering the "switch card" never changed or anything. Just the graphics card) 


i have googled this a bit and all i see people saying is the difference between active and passive ports? or something like that, but that is only on the HD 6870s, and i dunno if thats the same! Please someone help!!!!

 09/23/2012 02:55 AM
User is offline View Users Profile Print this message

Author Icon
Farming Materials

Posts: 548
Joined: 01/15/2011

Wait wait wait....

how were you running 4 monitors with a SINGLE HD 4850? The HD 4850 had only two DVI ports.

How were you able to run 2 more monitors of the motherboard? What motherboard are you using???

From what I know, once a graphics card is detected, the motherboard output ports are disabled automatically.


Do run Eyefinity / 3 or more monitors....since the Radeon HD 5000 series, you NEED and ACTIVE DISPLAYPORT ADAPATER.


Regular size displayport

Mini DisplayPort


So for the first 2, you can use DVI's or the HDMI, but fir the 3rd you need to use the DisplayPort.

You CAN'T Crossfire your older HD 4850 with your new HD 7770. They are completely different in technology and generation. Crossfire only works with cards in the same family. (HD 48## with 48##. HD 77## with another 77## card)


Active and Passive DP concepts is VALID for all Radeon cards since the HD 5000 series. All Eyefinity enabled cards follow the DisplayPort rule.


The question I need you to answer is, What motherboard are you using? (That allows the motherboard ports to work with a graphics card installed).

List your system specifcations as well (similar to what I did in my signature). Refer to the IMPORTANT* sticky posted by our AMD Forum Moderator.


FX-8350 @ 4.8GHz // ASUS Crosshair V Formula 990FX // Sapphire Vapor-X HD 7970 + Dual-X HD 7970 // Thermaltake Frio w/ push-pull (using Antec Formula 7 Nano-Diamond + Cooler Master JetFlo fans) // 8GB (2 X 4GB) G.Skill RipJawsX 2133MHz  // Corsair TX850 850W // Corsair Force GT 120GB SSD (OS) // Kingston V200+ 120GB SSD // WD Caviar Black 1TB // Windows 7 Ult x64

93145 users are registered to the AMD Support and Game forum.
There are currently 9 users logged in.

FuseTalk Hosting Executive Plan v3.2 - © 1999-2015 FuseTalk Inc. All rights reserved.