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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1813

post #18121 of 38704
Quote:
Originally Posted by Layo View Post

I would go with something around 1000-1200W, I remember that stock 7970's draw around 310W, give them 2x 350W + the 3930k takes another 300W? Good 1kW would probably do, but it's better to have some backup and the psu won't be under heavy load all.
Correct me if I'm wrong
I know there's guy here who pmed me few times, he runs eyefinity, quadfire 7970 and 3930k at around 5ghz, he was using 1600W.

I would say a very high quality 850w PSU or higher would be fine. 7970's don't use as much power as people say they do.
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post #18122 of 38704
Quote:
Hey all. I have a few questions about eyefinity.

I Have a MSI TF3 HD7950 oc, and i have 3 Dell 1905FP monitors hooked up. The problem I am having is that it just does not see the third monitor. I try to enable it in CCS it errors out and says "To extend the desktop, a desktop must be disabled." I have reinstalled my drivers, i have all the current ones, YES i have restarted my computer... I just cant figure it out.

The full ports I am using are the, DVI HDMI and MiniDP.

I have two working just fine however it will not accept the third with out that error.
I have read somewhere that I cannot use Eyefinity with using a HDMI however the article was old and I am not sure that is still relevant.

PLEASE HELP

System Specs

MOBO : MSI L77A-GD55
GUP: MSI TF3 HD 7950OC
RAM: 16gb 1600
OS: Win7

These are the Monitors I am using
http://support.dell.com/support/edocs/monitors/r83546/EN/about.htm

Thanks again....

Did you setup a eye infinity display group in CCC?
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post #18123 of 38704
Yes, It only allows me to use 2x1 or 1x2 doesn't allow me to use 1x3 or any combo of that. And when i try to extend my desktop in either windows or CCS it errors out.
post #18124 of 38704
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post #18125 of 38704
Quote:
Originally Posted by neonthetank View Post

Yes, It only allows me to use 2x1 or 1x2 doesn't allow me to use 1x3 or any combo of that. And when i try to extend my desktop in either windows or CCS it errors out.

Are you using a certified active dp adapter?
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post #18126 of 38704
Quote:
Originally Posted by Daffie82 View Post

Nice to see you gained so much with this new BIOS !
Do you happen to know if there is also a new bios for my Sapphire HD7950 dual fan edition which will lead to the same OC increase? thumb.gif
Thanks!

Sadly I don't know about Sapphires 7950. I checked their site but didn't see anything about BIOSes to 7950. You could google around to check if they have new BIOS available. I think you can OC it on traditional way, mine had (,atleast I think so) something wrong on BIOS and didn't overclock well.
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post #18127 of 38704
I am using a Rocketfish adapter that I bought from BestBuy because the Frys by my house was out of the sapphire ones.
post #18128 of 38704
Also i wanted to know if it would run any better if I used only Displayports and DVI instead of the HDMI in there... somewhere I read that HDMI ports messed it up.

(OBVIOUSLY My first Eyefinity attempt)

Thanks.
post #18129 of 38704
Can anyone explain this to me? At 1125/1575/1.243v I cant run any game without it locking up. But at 1150/1575/1.210v I can run furmark and it is fine. What is happening?
post #18130 of 38704
Can anyone make Ungine heaven 2.5 test with the same settings (clocks) please?




I think something is wrong....
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