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Voltage auto decreasing during Load

Last response: in Overclocking
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September 28, 2012 8:48:53 PM

Hi!

I recently bought a Hyper 212 plus to OC my Phenom II X4 955BE on my M4N68T-MV2 motherboard. My problem is when I go past 3.9Ghz, my motherboard start to automatically decreasing the voltage and the frequencies of my cpu, thus resulting in huge framedrops in games like Battlefield 3. I noticed that it happens as soon as my cpu hits around 50C on speedfan. When I'm at 3.9Ghz, I always go around 45C so that's why it doesn't do it. Any ideas? :( 
a b à CPUs
a b V Motherboard
a b K Overclocking
September 28, 2012 9:35:21 PM

What video card do you have and what power supply?
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September 28, 2012 9:38:18 PM

I have an Asus GTX460 and my PSU is a CoolerMaster Extreme Power Plus 500W, I always oc my video card in gaming but even when I don't, it does the same. I'll try unplugging my video card to see if power consumption is the problem.

Edit: Removing my video card didn't change anything, so I don't think it's a power consumption problem. It just wait until it goes to 45C then the voltage and frequency go back up and drop when around 50C.
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September 29, 2012 5:43:51 PM

I tried many settings in LLC, I tried 50%, 70%, 100%, 20% and 10% and none of them changed something :(  In my manual they don't even say a thing, they just tell me to put it on auto if system is unstable. It's so annoying, as soon as it reaches 50C my voltage goes down to 1.1 and my Core speed to 800mhz..

Thanks for your reply!
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a b à CPUs
a b V Motherboard
a b K Overclocking
September 29, 2012 5:58:55 PM

Many people with Asus motherboards complained of the same problem. I'd guess your board has poor VRM's.
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September 29, 2012 6:03:47 PM

I see, I guess I'll stick to 3.9 Ghz... It's such a shame, I'm sure I would've got near 4.4~4.5Ghz as my cpu chip seems amazing at handling high overclock. Anyways thanks for your time, I guess I should've picked a better board to Oc
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a b à CPUs
a b V Motherboard
a b K Overclocking
September 29, 2012 6:19:06 PM

Your mobo is an Nvidia chipset, not really known for great overclocking for AMD chips. Stick to AMD chipsets for AMD cpu's.
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September 29, 2012 6:54:30 PM

Alright, thanks for the advice! :) 
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