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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 481

post #4801 of 38701
Is it possible to put a hd7970 and a hd7950 in crossfire together ?
Because it''s the same gpu only the 7950 is a light version .
post #4802 of 38701
that's an interesting question...if you flashed the bios.
 
Thanks Geritol!
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Thanks Geritol!
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post #4803 of 38701
Quote:
Originally Posted by RagingCain View Post

I was hinting at "Start benchmarking!" ^.^

Got to 1225 Core @ 1.2v and 1650 on the memory @ 1.6v and it scored me 81.8 (2060 points) in heaven 2.5. I could go further, but it seems that the gains are so minimal I might as well sit at where I am.

Am I doing it right?

7950oc.jpg

Also I noticed some serious coil sequel / cap whine / buzzing while benching and I remember reading that all the 79xx cards are afflicted by this, so should I just ignore it? My card never went over 58C while testing.
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post #4804 of 38701
Quote:
Originally Posted by pfunkmort View Post

that's an interesting question...if you flashed the bios.

I just read at a site that you can use in crossfire two gpu's that are different versions as long as it is the same gpu type.
They bring the hd 7970 & hd 7950 up as an example.
So not an 7970 & 7870.
I''m new to amd before i had nvidia and i know that in sli you need to have 2 the exact same gpu's.
I have already an hd 7970 but i wanna upgrade later in the year with a second card.
The hd 7950 has almost the same performance then a 7970 but saves me 100 euro.
post #4805 of 38701
Quote:
Originally Posted by Cliors View Post

Is it possible to put a hd7970 and a hd7950 in crossfire together ?
Because it''s the same gpu only the 7950 is a light version .


Probably don't even need to flash. Same-series have traditionally been CFX capable. Not sure about the 7900 series though. Might be worth an email to AMD.

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post #4806 of 38701
Quote:
Originally Posted by Samurai707 View Post

Finally got my Sapphire 7950 OC Edition in! Toooo excited! :thumb:


Congrats man! Enjoy! :)

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post #4807 of 38701
Quote:
Originally Posted by Mr Frosty View Post

Would someone be kind enough to do a run of Crysis at 1920x1080 all very high settings please?

Here's 2 runs for you. 1st was no AA at 1150/1500 and 2nd was 4xAA and 1200/1600
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post #4808 of 38701
Quote:
Originally Posted by Exostenza View Post

I am using those drivers too and they are a fresh install from using ATIman's uninstaller. In AB I just get 0 on both of my clocks and none of the sliders can be modded even though I enable overclocking and everything in the config file. Trixx says it needs to disable ULPS which is in the settings and all I have to do is restart, but it never works. I can't get either program to change my clocks...
This is all I can get from AB even after butting in the line of text and the 1 required in the config:
captureyrn.jpg
I cant move the core or memory sliders at all, but I can set the voltage which is strange.

I simply deleted the CFG files and let AB re-build them upon restart. This was after I ruined the overclocks and it was constant driver recovering but I couldn't do a whole lot, so safe mode'd and deleted those files.
Quote:
Originally Posted by Cliors View Post

Is it possible to put a hd7970 and a hd7950 in crossfire together ?
Because it''s the same gpu only the 7950 is a light version .

Every series before this has had compatibility assuming it was the same family of GPUs and since 7950/70 share the Southern Islands GPU, they should be.
     
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post #4809 of 38701
Quote:
Originally Posted by Invisible View Post

These. The ones from their website that are brought up whenever you search.
What do you mean by "play nicely"? All I done was (I came from nVidia) uninstall all nVidia drivers and programs from Add/Remove, DriverSweeper in Safe Mode to get the rest, install the AMD drivers, install the new beta of Afterburner, apply the overclock in AB (unofficial mode), disable Overdrive in CCC, restart.
I haven't had any problems with programs or anything. Except when the driver crashes when testing stability, but that's normal.
Core = 1.281v
Memory = 1.681v

ist to high to run it it 1.28 core voltt ? and what about the mem voltt

my card is runing it 1.231 core voltt stock volt for mem

show us bench for haven it max setting x8 1080p
hear is mine

338
post #4810 of 38701
I noticed some serious coil sequel / cap whine / buzzing while benching and I remember reading that all the 79xx cards are afflicted by this, so should I just ignore it? My card never went over 58C while testing and playing BF3. I can't hear it over the general hum of my computer, but when I open the case and listen all I can hear is a terrible buzzing from the GPU.

Should I be concerned?
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