AMD FX-8350 OC speed drops

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victoryo

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Jul 30, 2014
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Hi all.

I overlocked my FX 8350 to 4,5 GHZ with air cooling using a noctua D14
So, running a prime test to see if the system is stable.
Also having CPU-z open to check the CPU speeds. As i watched the speeds I saw it drop to
1396Mhz while in bios i turned off AMD cool n quiet and also thermal throtling is disabled.

What can cause this drop?
My mother board is an ASROCK 970 Extreme 4 with P2.60 bios.
 
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ohim

ohim

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Feb 10, 2009
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From what i can see you have a 4+1 power phase MB, the MB might not be the best to OC your FX - 8350, I had in the past GA-970A-DS3P with 4+1 power regulators and i couldn`t get any stable OC on that MB, now using a 8+1 power MB i can OC my FX all i want given that my cooling can keep up.
 
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victoryo

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Jul 30, 2014
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Well, computer is working stable and running fine so far.
Only crazy thing is the drops in speed of MHZ as in bios it should stay fixed @ the oc'ed clockspeed.

Running @ 1.41 for your info.

This is a screenshots after 1 hour of Prime95 with the temperatures. But as i said the clockspeed sometime still drops so maybe that is the reason why it still stays cool.

24zk3t5.png


@edit:

The crazy thing is, when i stop the Prime95 test. The CPU speed then remains @ 4,5 GHZ without drops.
 
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