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How To: Overclock Your AMD / ATi GPU - Page 55

post #541 of 644
Hey i have the msi 6770 and when i open the gputool no clocks recognize and neither can i increase the clocks with the sliders. I have tried using msi afterburner for increasing voltage and when i do increase it to whatever voltage other software still recognizes the voltage at stock which is 1. 125 which totally sucks. Can anyone please help me..
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Jay
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post #542 of 644
Hi everybody.
I have GIGABYTE GV-R685OC and i can't edit bios at all.
If i edit something after flashing card crash when windows 7 loading with error: ATIKMDAG.SYS.....
---
And anybody know any way to overvolt that gigabyte card?
Thanks
post #543 of 644
Overclocking a Radeon HD 6950. Follow the instructions in the original post and increased the core clock from 830MHz to 930MHz, in which I began to see artifacts so I decreased it and tested for 15 mins.

Then went to over clock Memory Clock from 1300MHz and increased it by 10MHz, tested and repeated until I hit 1600MHz then my screen went blue.

1600 seemed a little high I supposed, but no artifacts were showing up. Card still works fine. Any thoughts?
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post #544 of 644
I have my HIS non-reference 6970 oc'ed to 970 core and 1385 memory, I can go higher but need to take the time to test ect. However I can't increase voltage, I was wondering if it would be possible at some point in the future for afterburner to support voltage increases on my card. ty
post #545 of 644
So I have 2 reference 5770's that work pretty well and I decided it was time to overclock them being that I just purchased BF3 and want to get some extra oomph out of them. I read all over that this card overclocks well but I can't seem to get them over 900 clock without a driver failure (while playing a game). When I run the GPU Tool I see ZERO artifacts but I get a "30 seconds since the last error" message on the bottom left of the screen. I caught what the error was and it said something like "pixel mismatch error" or something like that. I am on the latest drivers and use MSI afterburner to Overclock. I even have a slight voltage bump to 1.175v but that hasn't helped. Any thoughts? Thanks in advance thumb.gif
I have Ryzen!
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I have Ryzen!
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post #546 of 644
Thank god for this guide. Nice to have a guide like this.
post #547 of 644
What a great guide! Thank you for posting. I have done my best to overclock my GPU (Club3D radeon HD 6790 Coolstream edition) as far as I could. I managed with the GPU tool test to get from 840MHz Core clock tot 1010MHz in which I started to see artifacts. I managed to get the Memory clock from 1050MHz tot 1250MHz as my screen went blue at that point. I stepped back 10MHz with both clocks and ran a 15 minute test. All went fine.

Though, when I started a game, the screen turned immediately red. After a few tests and many MHz's lower, it still gave me red screens (read: 980MHz by 1200MHz). I got fed up and put both clocks way lower (960MHz by 1100MHz). Now it runs smoothly without any problems, but i'm sure i'm able to increase the cores a bit higher. Does anyone know why I keep getting red screens after I have decreased the cores considerably from the points the card seemed unstable according to GPU tool?

Anyway, i'm happy with the overclock for now.

3Dmark06 test with 840MHz/1050MHz = 16236
3Dmark06 test with 960MHz/1100MHz = 17707
post #548 of 644
How were the temperatures when all that was happening?
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post #549 of 644
Temperatures were actually not that high, around 65-70°C, and no significant changes during the test.
post #550 of 644
What I've noticed from other people with the 6000 series card is that GPUTool will notice errors around those temps. Bring down the temps and they will go away.

I will be testing this tomorrow possibly. I just finished installing a Kuhler 620 and it brought down my load temp from 57 down to 43 on 980/1100 clocks. Previously, errors were detected at 1000/1100 when temp was above 65c. We'll see if there's improvements tomorrow hopefully.
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OCZ Vertex 460 WD 1TB Blue Koolance 380A EK-FC R9-290X 
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