I have avoided Asrock motherboards in combination of high power fx chips purely because of their previous issues of sketchy VRM quality with some of their lower end boards.
Moral of the story: Dont go budget motherboard if you don't go budget CPU! People buy the extreme 3 now because it is cheap and was previously known as a good board and also Asrocks flagship amd board but find that it cant even take the high power fx chips. It was however made to take phenom CPU's and was only just about capable of taking a 6 core phenom with a moderate overclock, without a huge CPU air cooler nearby to help the airflow around the VRMs. Extreme 3 only has 4+1 power phasing and though outdated, it was a good motherboard. I don't believe that motherboard manufacturers have implemented the throttling to combat AMD's FX chips power drain but rather most of the boards where people are finding their stuff throttled were originally made for am3 CPU's and VRMs on boards which were released pre-FX still could throttle the clock but rarely did since their power drain was more modest.
Intel burn test fx8350 update#
Then you see a string of replies to tell them to update bios, check CPU temperature or change the stock heat sink but every time its actually just the VRMs throttling the clock. Every week there is a few people saying that their extreme 3 coupled with an 8350 is not using the multiplier set in the bios and instead a much lower one. I am not at all surprised having owned several 8 core fx chips and tested them on a variety of motherboards. This is more of AMD’s issue on the FX-8350 because the TDP was rated lower than its actual value. Please also keep in mind that this throttling behavior keeps system stable under such heavy-loading condition. Throttling only happens when the loading on a 125W CPU usage is heavy by the use of heavy burn-in tools such as Prime 95/OCCT, and such testing methods are not standard usage scenario or practical. We had tested using 3DMark and it did not cause throttling. This is aimed to make the system stable in this condition.Ģ. Thus, to prevent such any potential hazard to the MOSFET, 970A-G46’s BIOS will trick the processor that its temperature is 225 degrees which will then allow the CPU to throttle. With such condition on the 970A-G46, the high amount of power draw also causes the MOSFET to exceed its spec and will overheat. However, during our internal testing, when the usage of CPU reaches 100% through Prime 95 for a while, the power consumption can exceed 125W and reaches 140W. AMD has claimed that the FX-8350 to be 125W.
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