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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 875

post #8741 of 38701
Quote:
Originally Posted by ste.ru View Post

Hello
i have a little problem i changed the bios of my 7970 with bios ASUS for more OC but now in idle mode my GPU work a 925Mhz or at the frequencies that the imposed even if the load 0..
with bios 1 the card have 3 step 300Mhz ->500->>925
with bios 2 now only 925 Mhz
is a problem of driver?rolleyes.gifrolleyes.gif

I think its the ASUS Bios.

I tried TriXX with HD 7970 @ 1200Mhz @ 1.225v so far so good. More stable then MSI AB.
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Ishimura
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post #8742 of 38701
iH-282HPB_specsheet.pdf 433k .pdf file

I posted this on my own thread but lots of reads and only response. redface.gif
Quote:
Given the specs of the above monitor (will be running 2 of those 28 inchers and 1 Acer 22 incher), what ATI Graphics card would give me the Absolute Best Resolution. What I do not wish to do is buy under-kill or over-kill, the meaning of "over-kill" being a card with more "horsepower" than my 28 inch monitors can handle.

Note: I use only Cooler Master HAF 932 cases and Noctua NH-D14 heatsink/fans. In short, I have plenty of room in my Cooler Master Case - IF I don't park my car in there, a sacrifice I am willing to make. rolleyes.gif

Footnote: No gaming and No EyeFinity required.

Suggestions would be appreciated. There are things I know something about but graphics cards is not one of them. redface.gif

Thanks!!!

Question: Since I want to achieve the Best Possible Resolution and Clarity from these monitors, would I be out of my mind to look at the Radeon HD 7950?

Footnote: My psychiatrist says I don't take rejection well, so please be as "kind" as possible in telling me I am FOS if you indeed believe so. Otherwise, I would hope for your honest suggestions.
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post #8743 of 38701
Quote:
Originally Posted by ste.ru View Post

Hello
i have a little problem i changed the bios of my 7970 with bios ASUS for more OC but now in idle mode my GPU work a 925Mhz or at the frequencies that the imposed even if the load 0..
with bios 1 the card have 3 step 300Mhz ->500->>925
with bios 2 now only 925 Mhz
is a problem of driver?rolleyes.gifrolleyes.gif

Ya it's the bios a member here already posted a modified one with working 3d clocks http://www.overclock.net/t/1196856/official-amd-radeon-hd-7950-7970-owners-thread/8410#post_16890428
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post #8744 of 38701
Does anyone else's coreclock spike like this?

399
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post #8745 of 38701
Quote:
Originally Posted by Ruined View Post

Quote:
Originally Posted by ste.ru View Post

Hello
i have a little problem i changed the bios of my 7970 with bios ASUS for more OC but now in idle mode my GPU work a 925Mhz or at the frequencies that the imposed even if the load 0..
with bios 1 the card have 3 step 300Mhz ->500->>925
with bios 2 now only 925 Mhz
is a problem of driver?rolleyes.gifrolleyes.gif

Ya it's the bios a member here already posted a modified one with working 3d clocks http://www.overclock.net/t/1196856/official-amd-radeon-hd-7950-7970-owners-thread/8410#post_16890428


BIOS #1 is flashable.

BIOS #2 is backup - do not force flash this one or will get into trouble (bricked).

 

The Asus BIOS in that link is edited with Hex Editor. The problem is, you have to flash it everythime you update drivers and it only works with Asus Tweak utility. There's no way to edit the core/memory clocks with RBE starting from 6000 series.

 

If you are not benchmarking but for 24/7, suggest stick to original BIOS.
 

 

 

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post #8746 of 38701
Anybody know if I can run my secondary monitor off my second 7970 in CF? Wondering if that would help my flickering issues as well as lowering temps on my main card....
post #8747 of 38701

Nope, unlike SLI Surround - it will break crossfire if you plug monitor to the second or third card in crossfire configuration.

 

Try to set the memory clock to full 3D, see if the flickering is due to low memory and core clocks. Also check if you have hardware acceleration apps running in the background such as Chrome, IE, FF, WMP, Youtube, etc. or apps set to GPU(s) affinity or remote access.


Edited by Ken1649 - 4/10/12 at 7:27pm
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post #8748 of 38701
Quote:
Originally Posted by Ken1649 View Post

Nope, unlike SLI Surround - it will break crossfire if you plug monitor to the second or third card in crossfire configuration.

Try to set the memory clock to full 3D, see if the flickering is due to low memory and core clocks. Also check if you have hardware acceleration apps running in the background such as Chrome, IE, FF, WMP, Youtube, etc.

Well crap! mad.gif

Thanks for the info Ken...
post #8749 of 38701

You can check using GPU-Z under sensor tab if the core and memory clocks are fluctuating due to hardware acceleration apps that lower the memory clocks to UVD (Unified Video Decoder). Some flash apps such as Youtube, DirectX acceleration etc will trigger the UVD clocks.

 

If you have more than one monitor, the 2D idle clocks should be 500/1375 to avoid flickering. And/or if you are overclocking could interfere with this 2D clocks too.

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post #8750 of 38701
I have noticed the flickering more when watching YouTube vids than anything else. Not something I can't live with but it is a little annoying...
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