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How would an ASRock 990FX Extreme3 suit me in overclocking a 965 BE?

post #1 of 8
Thread Starter 
I've heard some horror stories on overclocking 125W CPUs on 4+1 power phase, but can't find anything on the 4+2 power phase the ASRock 990FX Extreme3 is claimed to sport. Will overclocking the 965 BE to about 4.2 GHz on this motherboard break the fabric of space and time and cause multiple countries to fall to anarchy promptly after being bombarded by nuclear missiles?

Thanks.

Also, I have sufficient cooling for this, I own an H80.
post #2 of 8
if i am correct and i am sure that i am, there would be no difference between a 4+2 or a 4+1 setup since the first number (4) has to do with the VRMs for the cpu and the second (1 or 2) have to do with the RAM.
Quote:
Dual Output PWM Controllers:
Many times we see a PWM Controller with two numbers instead of one, such as 6+1 or 4+2. So what does this mean? This means that the PWM can control two totally different VRMs! If a controller has the “+” then it has two separate but equal control loops. These PWMs are something recent and they became useful when specifications for processor power started asking for more than one input rail. The second rail is usually at a much lower current and different voltage than the main CPU power rail; however it can also provide power to another part of the CPU such as the memory controller (IMC)
http://sinhardware.com/index.php/vrm-articles/316-the-motherboard-voltage-regulator-guide?showall=&start=1

i highly doubt there would be an armageddon using a 4+X board to overclock but you will most likely not get a very high and stable overclock. also consider not all VRMs are the same; there could be a board that has an 8+2 setup that is really a 4+2 and wont get as good of performance as another 4+2 board.

what where you looking at?
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loon 3.2
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post #3 of 8
Thread Starter 
Well, I came across a free Extreme3, and I now own an M5A88-V Evo, which is supposedly 8+1, and I can only get my 960T to 3.8 on it, I also have a 965 that I was hoping to overclock on the Extreme3.
post #4 of 8
Thread Starter 
Do you think I could get 4.2 GHz?
post #5 of 8
Quote:
Originally Posted by RatzuCRRPG View Post

Do you think I could get 4.2 GHz?

It will depend more upon the abilities of your cpu than your motherboard. However the extreme 3 should be fine pushing an X4 to 4.2 ghz. Just make sure you have good airflow around the vrms, especially important because you have no HSF on the cpu moving air in that area.

I have had no issues with mine running a 965 or 960T as an X6 at that speed.
Good luck.
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post #6 of 8
You should be fine, i run one with an fx-6300@4.6GHz , with a fan blowing air to the vrm's heatsink but my overclock is limited by this motherboard, i used to run an athlon II X3 455 with the fourth core unlocked and i used to push it up to 4.3 ghz and never seen no vrm throttling with that cpu@1.55v. If you could stretch your budget a little bit more maybe you could get a better motherboard as personally this was one of my worst motherboard purchases ever. No more ASROCK for me wink.gif
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post #7 of 8
Thread Starter 
Seeing as you've owned this motherboard, what would you say is a good temp for the motherboard? My CPUTIN temp went to 55C with just Windows Experience Index, I want to know if this is normal. I'm running at 4.2 GHz with vcore at 1.425.
post #8 of 8
well that depends on a lot of factors, but is still an acceptable value.

Edit: it would help if you post socket temp and core temp while stress testing.

Today my extreme 3 died on me while overcloking a sempron thumbsdownsmileyanim.gif pretty comic really biggrin.gifbiggrin.gif
Edited by smartdroid - 6/23/13 at 4:14pm
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