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Overclocking ASUS GTX 470

post #1 of 5
Thread Starter 
Hello fellas, I'm not enough competent about GPU overclocking or I just have the worst luck ever. I bought my GTX 470 before around two weeks and I want to overclock it. In the beginning I tried to overclock it up to 700 MHz without bumping the voltage. I saw a lot of people did it so I thought I am able to do it also. I know every card is different and it overclocks differently. I had some issues with motherboard temperature sensors. I set it to stock speed and I had no problems. After few days I tried to overclock it again but raising the voltage. I needed 1025 mV to get it stable in OCCT GPU Test. Then I wanted higher and higher and I was getting errors till I bumped it up to 1087 mV. I am running it now at 761 MHz Core, 1700 MHz Memory and 1522 MHz Shader. I can't get any higher. How's this possible? Everybody else got 800 MHz Core under 1087 mV, only I don't. Is there a problem with something else or I'm just unlucky? At 764MHz core, OCCT GPU Test detects errors.

My PC:
CPU: Q6600 3,6 GHz 1.4v 400x9
Mobo: ASUS P5Q3 Deluxe/WiFi-AP @n
RAM: Kingston HyperX 1600 MHz 2x2 Kit 4GB 9-9-9-27 1.65v
PSU: Chieftec CFT-750-14CS (4 rails 18A, it has Nvidia SLI certificate)
HDD: Western Digital 250GB(Main) and Samsung 1TB

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post #2 of 5
Thats still a 150mhz OC, its not that bad. Its not as good as some but not bad either.

If you click on the icon in the upper left hand corner of the gpuz window, go to read asic quality and post back with what it says. that will give a good idea of if you have a "bad" oc'ing chip.
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post #3 of 5
Thread Starter 
Here's the pic:

post #4 of 5
It is the luck of the draw, my old GTX 470 was a dud too.
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post #5 of 5
Hey Feralz,

I had 2 GTX 470, I reached on both 800/1600/1900 (c/s/m) @ 1.087 Vc
I changed the bios to be able to add more volts (1.2v)
I used the bios from Zotac ZTC.GTX470.DF.PCIe.1280MB.Rev.04 ...I still have it on my computer but can't remember where I found it. (I did it almost 3 years ago I guess)
I was able to benchmark @ 850/1700/2000 but I could see some artefacts ...

Maybe if you have the model with the "original" PCB you should try to change the bios
ZTC.GTX470.DF.PCIe.1280MB.Rev.04.zip 46k .zip file

Once it's done you have to re-install AB otherwise you will not be able to add more than 1.087 V.
Edited by tungy - 8/5/13 at 5:24pm
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