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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1812

post #18111 of 38701
Quote:
Originally Posted by psyside View Post

2x 7970 highly overclocked + 3930K@4.6 what psu would be enough?
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.
Edited by Layo - 11/22/12 at 3:01pm
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post #18112 of 38701
Quote:
Originally Posted by XiDillon View Post

anyone have any idea why I enable xfire my secondary cards shuts off and when I disable xfire it turns back on?

This sounds like the ULPS funtion when in crossfire. Google it on how to disable this or use Atimans uninstaller Package that has a ULPS disable utility.

Still though, the 2nd card should come online as soon as you open a 3d application/game
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post #18113 of 38701
Quote:
2x 7970 highly overclocked + 3930K@4.6 what psu would be enough?

850 watt-1000 watt. would be your ideal range.
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post #18114 of 38701
I ran a 2600k + CFX 7970s OC'd with an HX 750. For that CPU I would suggest an 850 too though.
    
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post #18115 of 38701
Quote:
Originally Posted by Layo View Post

Are there any things to check of bad gpu?
has
http://folding.stanford.edu/English/DownloadUtils
memtestCL/memtestG80

been mentioned yet?
 
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post #18116 of 38701
Managed to get 1200MHz @ 1.25 Vcore.. Tried 1300MHz @ 1.31 Vcore.. Still artifacts here and there.

The good news is, after 12.11 beta 8 update I can achieve that clocks. I've used 12.11 beta 6 ( think so, just previous of this version ). I cant even go higher than 1150MHz even at high voltage. I was so scared that my Matrix is the one that belongs in the dump.

Now, its not.
 
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post #18117 of 38701
What so AIBs are voltage locking some 7950/7970 cards now??
post #18118 of 38701
Just upgraded to windows 8, also got start8, Decor8 and worth the money thumb.gif
http://windows.microsoft.com/en-US/windows/buy


side note
http://www.windowsupgradeoffer.com/
Go here, click what language, put in a date of windows 7 purchase of the past 2 months whistle.gif and choose any system type and you can upgrade to windows 8 for $15.00

FYI, It is worth the upgrade thumbsupsmiley.png
Edited by evolutionxxx86 - 11/23/12 at 7:23am
post #18119 of 38701
Quote:
Originally Posted by ElGreco View Post

This sounds like the ULPS funtion when in crossfire. Google it on how to disable this or use Atimans uninstaller Package that has a ULPS disable utility.
Still though, the 2nd card should come online as soon as you open a 3d application/game

Okay the thing is I wasnt ecpecting the card to just disable itself. It does boot up when AMD decides that I want to use it which is fine. I just have voltage drooping that I need to take care of now. It happens even when underclocked

whenever my gpu usage shows a value more than 0, GPUTweak will show that my vcore and gpu clock to be at 0 while under load
Edited by XiDillon - 11/23/12 at 11:59am
post #18120 of 38701
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....
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