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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1662

post #16611 of 38704
Quote:
Originally Posted by Newbie2009 View Post

http://www.hardocp.com/article/2012/01/09/amd_radeon_hd_7970_overclocking_performance_review/6
I have heard the 3rd card in sli/xfire setups remove microstutter.

Thanks! Looks like that will make them very playable! May just stick with two and add a third down the road.
post #16612 of 38704
I have the XFX Double D non Black Edition 7950 running drivers 12.8 and I'm getting like 10 pixels flashing green on the top left and right part of my screen. I just built this machine last week so I would like to get this resolved asap.
post #16613 of 38704
Quote:
Originally Posted by jshzigler View Post

I have the XFX Double D non Black Edition 7950 running drivers 12.8 and I'm getting like 10 pixels flashing green on the top left and right part of my screen. I just built this machine last week so I would like to get this resolved asap.
Still stock clocks? If not, put back to stock. If stock, could try a different cable real quick just to rule that out. If not, then remove the drivers completely and try either 12.7Beta or 12.9Beta drivers.
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post #16614 of 38704
Quote:
Originally Posted by jshzigler View Post

I have the XFX Double D non Black Edition 7950 running drivers 12.8 and I'm getting like 10 pixels flashing green on the top left and right part of my screen. I just built this machine last week so I would like to get this resolved asap.

Try a fresh install of the driver. If that don't work try 12.9 beta. If that don't work try 12.4. If that don't work try ol faithful Late Jan beta drivers, rc 11 I believe.
post #16615 of 38704
Just wanted to stop by and thank bradleyw for his amd driver removal guide. I had been having driver issues with 12.7/12.8/.12.9 after a fresh windows installation and couldn't seem to find a working driver for me. Decided to ditch the atiman method and try his guide thinking itvcertainly couldn't hurt. Fixed all my issues. I'm now running 12.9 with zero issues. Thanks Bradley.
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post #16616 of 38704
Hi folks,

I am considering to buy a 2nd Sapphire 7950 and run them crossfire in my sig rig.
Though i am wondering about a couple things and i hope you guys can help me out on this.

- I been very busy lately and haven't been around much, therefore i am not 100% up-to-date on this. I know for a fact that there was a lot of trouble with crossfiring 7950/7970 in the past, due to drivers and whatsoever. Is this still the case? Or are there actually 100% working drivers around? Or should i stay away from crossfire still?

- Also, i am wondering if my current PSU would be sufficient enough to feed the two 7950 of enough juice? even with average overclocked GPU/CPU?

PSU:

OCZ ZS 750
80 Plus Bronze



Current system contains:

i5 2500k @ 4800Mhz - 1.375v.
Asus P8P67 Pro.
2x 4gb Corsair Vengeance memory (stock).
Corsair H100 + 2 Gentle Typhoons.
1x Sapphire 7950 OC edition.
2x 7200 rpm HDD.
1x Crucial 64gb SSD.
1x Bitfenix Caselight
2x Bitfenix LED fans.
DVD-Drive, keyboard, mouse.
Scythe fancontroller.
Edited by rck1984 - 10/11/12 at 4:53pm
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post #16617 of 38704
Quote:
Originally Posted by rck1984 View Post

Hi folks,
I am considering to buy a 2nd Sapphire 7950 and run them crossfire in my sig rig.
Though i am wondering about a couple things and i hope you guys can help me out on this.
- I been very busy lately and haven't been around much, therefore i am not 100% up-to-date on this. I know for a fact that there was a lot of trouble with crossfiring 7950/7970 in the past, due to drivers and whatsoever. Is this still the case? Or are there actually 100% working drivers around? Or should i stay away from crossfire still?
- Also, i am wondering if my current PSU would be sufficient enough to feed the two 7950 of enough juice? even with average overclocked GPU/CPU?
PSU:
OCZ ZS 750
80 Plus Bronze

Current system contains:
i5 2500k @ 4800Mhz - 1.375v.
Asus P8P67 Pro.
2x 4gb Corsair Vengeance memory (stock).
Corsair H100 + 2 Gentle Typhoons.
1x Sapphire 7950 OC edition.
2x 7200 rpm HDD.
1x Crucial 64gb SSD.
1x Bitfenix Caselight
2x Bitfenix LED fans.
DVD-Drive, keyboard, mouse.
Scythe fancontroller.

Im sure plenty of people will call me out on this one but im telling you that youll be pushing that PSU. My sig rig is on a 1000 watt kingwin and according to my P3 kill-a-watt im running over 1000 watts with my cpu at 4.4 ghz and my 7970s at 1000/1425. I see tons of post claiming that anything above 850 is overkill even for two but unless my p3 is wrong im telling you 750 likely isnt enough. When I try setting my overclock on my cards to 1200/1700 I watch kill-a-watt when I start OCCT it goes to about 1100 and then shuts the pc down. I kept wondering why it would do this in crysis so I started wondering if possibly I was pulling too much power after the recent increase on my cpu from 4.0 to 4.4.
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post #16618 of 38704
Quote:
Originally Posted by SilkyJohnson View Post

Im sure plenty of people will call me out on this one but im telling you that youll be pushing that PSU. My sig rig is on a 1000 watt kingwin and according to my P3 kill-a-watt im running over 1000 watts with my cpu at 4.4 ghz and my 7970s at 1000/1425. I see tons of post claiming that anything above 850 is overkill even for two but unless my p3 is wrong im telling you 750 likely isnt enough. When I try setting my overclock on my cards to 1200/1700 I watch kill-a-watt when I start OCCT it goes to about 1100 and then shuts the pc down. I kept wondering why it would do this in crysis so I started wondering if possibly I was pulling too much power after the recent increase on my cpu from 4.0 to 4.4.

Thanks for your fast reply. One thing i'd like to make you aware of is that i am talking about 7950 crossfire, no 7970 crossfire. I think there is quite some difference on wattage between those? I might be mistaken though.
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post #16619 of 38704
Quote:
Originally Posted by SilkyJohnson View Post

Im sure plenty of people will call me out on this one but im telling you that youll be pushing that PSU. My sig rig is on a 1000 watt kingwin and according to my P3 kill-a-watt im running over 1000 watts with my cpu at 4.4 ghz and my 7970s at 1000/1425. I see tons of post claiming that anything above 850 is overkill even for two but unless my p3 is wrong im telling you 750 likely isnt enough. When I try setting my overclock on my cards to 1200/1700 I watch kill-a-watt when I start OCCT it goes to about 1100 and then shuts the pc down. I kept wondering why it would do this in crysis so I started wondering if possibly I was pulling too much power after the recent increase on my cpu from 4.0 to 4.4.

Strange your meter reads that. Seems highly unlikely that just 2 7970s (and rest of system ofc) would pull that kind of power. I experience no problems on my system with an 850 watt.

I havn't checked what 7970s pull but I know when I used to have my SLI 470 setup people used to run those on 750 watt and everyone called 470s crazy power consumers.
    
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post #16620 of 38704
I think your KAW might be off, but still odd it shuts down at 1100w.

I've not seen >1000w since my SLI GTX480 days.
I could push to 1200w before my psu would shut down.

My SB system ov/oc with a 7970/6950 combo hits ~700w on my KAW.
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