Overclocking AMD 7850 past 3.00 GHz?

February 1, 2010 at 20:24:25
Specs: Windows Vista, 2GB DDR2 Ram
Hi everyone. I'm having trouble overclocking my AMD 7850 past 3.00 GHz.
I'm using the stock cooler, and the multiplier is set at x15.00. Should I try increasing the voltage? It runs stable at 3.00 but anything past 3.1, it isn't stable.

CPUz is saying that my core voltage is 1.392V
My Bus speed is 200.15
my HT link is 1804.7.

I'm using the stock cooler, but I've heard that the CPU can overclock up to 3.4 GHz with the stock Cooler. What am I doing wrong? Should I increase the Bus speed or my voltage? Thanks.

My motherboard is an Asus A3A78 Pro, If that is needed. Thanks.

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February 1, 2010 at 23:11:33
Wrong forum, post to cpu/overclocking forum.

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February 2, 2010 at 05:01:21
You have to throw more voltage into the CPU...possibly 1.50v or even higher to get it to run stably at 3.2GHz. Try googling for X2 7850 BE overclock or something similar & you'll see what others have accomplished.

And pay attention to the RAM speed. Everytime you change the multiplier, the RAM speed will change. Assuming you have DDR2-800, try to keep it running as close to 400MHz as possible. That may mean increasing the CPU frequency/bus a bit.

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February 2, 2010 at 15:48:27
Ok, I've tried raising my voltage, but in my motherboard bios, when I try to raise the voltage, it only goes up to 1.30V. Is there any other way I can get it up past 1.30V? I have an M3a78 Pro Motherboard, by Asus.

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February 3, 2010 at 05:52:21
Make sure you have AI Overclocking disabled. Also make sure to disable all Spread Spectrum options & Cool 'n' Quiet. If you read your manual, the voltage is changed by "typing the desired values using the numeric keypad & press the <enter> key. You can also use the <+> and <-> keys to adjust the value."

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