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OC FX-8320 to 4.0Ghz on a Gigabyte 970A-DS3P and a 650W PSU.

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  • Overclocking
  • Gigabyte
  • Compatibility
  • Motherboards
  • CPUs
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June 17, 2014 7:33:42 PM

Hey guys, so, few questions...

The FX8350 is nothing more than a factory OC version of the FX-8320, right? Considering that the F8350 is compatible with my motherboard, is it safe to only increase the multiplier on my mother board to run the FX8320 @4.0Ghz without the need of tinkering with Vcore, BUS speed and so on?

Along with the FX8320 and the Gigabyte 970A-DS3P i got a Thermaltake PSU Smartseries 650W 80+ Bronze.... Any idea if its possible, and safe, to do a minor OC to 4.0GHZ? I also have a XFX R9 280X on this config, if it matters. I also have a CPU cooler installed, Cooler Master X6.

Thanks.

More about : 8320 0ghz gigabyte 970a ds3p 650w psu

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June 17, 2014 7:39:20 PM

Should be doable. If it doesn't quite make it to 4GHZ, just take the vcore up a click in BIOS. No biggie.
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June 17, 2014 7:43:22 PM

CPU go through a binning process. The FX 8320 is not exactly an underclocked 8350! If you compare an overclocked 8320 to a stock 8350 you'll see that the 8320 draws more power thus generates more heat. That said, you have a 4+1 board with vrm cooling; considering the 8 core amd cpus draw a lot of power and that 8320 overclocked to 4.0ghz will draw even more power than the 8350 i'd suggest raising the frequency as high as you can WITHOUT raising the voltage. If you can't reach 4.0ghz DO NOT RAISE VOLTAGE, it might kill the board or the cpu or both.

No need to tinker with bus speed or any other settings. Just raise the multiplier and disable turbo core.
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June 18, 2014 7:21:45 AM

emdea22 said:
CPU go through a binning process. The FX 8320 is not exactly an underclocked 8350! If you compare an overclocked 8320 to a stock 8350 you'll see that the 8320 draws more power thus generates more heat. That said, you have a 4+1 board with vrm cooling; considering the 8 core amd cpus draw a lot of power and that 8320 overclocked to 4.0ghz will draw even more power than the 8350 i'd suggest raising the frequency as high as you can WITHOUT raising the voltage. If you can't reach 4.0ghz DO NOT RAISE VOLTAGE, it might kill the board or the cpu or both.

No need to tinker with bus speed or any other settings. Just raise the multiplier and disable turbo core.


Hey, back with some results and new questions hehe... So, i only raised the multiplier, now it is running @4k. After a 5 min run on Haven Benchmark 4.0 i got the following data to show.


Is it normal, and safe, for the VID top drop from a constant 1.4 to 1.325? Vcore went down to 1.3, and this testing shows max CPU usage of 60ish%... does this mean it didn't quite work?

One more question, after this change, whenever i reboot windows, instead of the computer just... reboot, it first turns off, then back on, it was not usued to do this, before the little OC, rebooting was just... rebooting... Any thoughts on this?

Thanks again!

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June 18, 2014 8:12:40 AM

For stress testing cpu use prime95 or equivalent DON'T use graphics card benchmarks.
Do a couple of hours of small fft in prime95 and if you get no errors/BSOD/shutdown then you're good to go

Don't worry about restarts, as long as the pc doesn't have to be manually turned on, its fine.
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June 18, 2014 9:58:04 AM

Did you do the multi increase in BIOS or in an OC'ing pgm in Windows? If you raised the multi in BIOS and didn't touch anything else, it shouldn't go through the shut down before booting back up. That normally only occurs once, the first time the multi was changed.

Those CPU temps are reading strange. Use AMD Overdrive and go by the Thermal Margin: http://www.techspot.com/downloads/4645-amd-overdrive.ht...
Here's why that is a better way to go with AMD processors: http://www.tomshardware.com/faq/id-2122665/understandin...
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July 15, 2014 8:45:04 AM

Everything looks good. Boot loop happens because you disabled turbo core. It happens on my ud3p too. When you disabled turbo core, voltage droped to 1.3000v. Thats why. Bassically you need less voltage for 4ghz Overclock, then turbo core does.

Core VIDS will from now on remain at the same numbers, only watch vcore.
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July 15, 2014 8:43:49 PM

Don't go over 62 degrees.

That board is very poor for overclocking.

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