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Help me get my A10-7850k OC stable and get RAM up to correct speed

post #1 of 2
Thread Starter 
Full Parts List:

AMD A10-7850k
Gigabyte F2A88XM-D3H
Corsair Vengeance 8GB (2 x 4GB) DDR3 2133MHz CMZ8GX3M2A2133C11R
Cooler Master Hyper 212 Evo
Corsair CX430M

This is my first computer I've built. I overclocked the CPU to 3.9GHz and the Graphics to 1000MHz without any problems but whenever I bump my CPU up to anything over 3.9 it freezes after 5 mins.

First thing I want to know is how to overclock the CPU more while keeping it stable. I think it might have something to do with voltages but I have no idea how to start changing that and testing it.
I have this beast cooler and I've used Prime95 to stress test my computer and it hasn't gotten over about 40 degrees Celsius.

The second thing I'm having problems with is my RAM. I bought 2133MHz RAM so the integrated graphics had something fast to use. I turned the XMP on in the BIOS and it seemed to accept that but in CPU-Z it still shows that it's running at 1066MHz for both CPU and Graphics. I also tried to set all the timings manually but it's still at 1066MHz.
Graphics performance is not bad at all so I'm just wondering if it's just CPU-Z that doesn't show the speed right.

Any help will be appreciated.
post #2 of 2
I don't know about overclocking the 7850k as I don't know a lot about overclocking AMD, but I can tell you that it'd probably be best to either upgrade your case airflow, fans on the 212 EVO or upgrade the cooler itself. 3.9ghz isn't bad, but I bet you want to see how much you can actually get out of the chip, and IIRC the thermal limit on AMD chips are lower than what I'm used to.

You might find some useful information here, but i haven't read through it to know for sure.

As far as the ram goes, it is running properly. 1066mhz is 2133mhz because it's dual channel memory. thumb.gif
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