Suggestions for overclocking an FX-8350

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Joeyob32

Joeyob32

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Mar 28, 2013
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Hey guys,

So Im currently running an FX-8350, OC'd with a Hyper 212X. Currently stable at 4.3ghz since the MOBO doesnt allow accurate VCore settings. (Offset only - MSI Gaming 970). Since the CPU is no spring chicken, and I can't justify replacing everything just yet to get a few more fps the blue team could offer, can I ask if anyone thinks it'd be worth my while to invest in some liquid cooling?

And if so, does anyone have any suggestions on whats a good option for liquid cooling? I was thinking about the corsair h100i. But that's pretty old too, so if anyone knows of anything more recent that might be superior, I'd love the knowledge!

Thanks guys!!

Joey
 
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The cooler can be reused on a new CPU, so is more of an investment.

Investing in a 990FX platform in the hopes that AMD's chipset has any bearing whatsoever on the stability of an overclock would be absurd. That's where I would draw the line personally, and say that cost would not be worth it. Would be better to sell the CPU + MOBO and spend the money you get from the sale, plus the money you would have spent on the 990FX board and just switch to an Intel based platform.
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Shaun o

Shaun o

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Oct 7, 2007
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Yes a Corsair H100i is a little bit old but it gets the job done and does a reasonable job of keeping an FX-8350 cool.
The limiting factor to the amount you will be able to clock the 8350 to will be partly down to the chipset used on your motherboard.

The 970 is not a bad chipset, but the 990FX chip set gives better results at overclocking.
On about average, or with most FX cpus your looking at about an extra 800Mhz over the default clock speed of the cpu when overclocking.

The core voltage for the cpu at that point is about 1.36v.
At about 900Mhz to 1ghz overclock of an FX cpu you are looking at a core voltage from 1.4v to 1.45.
That is a rough estimate as not all FX- 8350 chips will overclock well.

Near the 900Mhz range on a overclock you will see the temperatures rise quiet rapidly from about a 1.45v setting of the core to 1.5v so you must keep a close eye on it.

It is not recommended that you go above 1.5v to 1.55v, and never set the core to 1.6v tempting as it may be the temp rockets very quickly.
Even with a good water cooler fitted Joey.

Do everything in small amounts, like half multiplier settings and core voltage changes.
If the board can do Mv Milli volt setting for the core voltage raise it by 0.250 increments.
And test the system each time for stability and keeping a close eye on the cpu temperature.
Run a prime 95 test checking for stability under cpu core load.
When your happy it`s stable and temps are right.
Back to the bios and move a half multiplier value up test again.
If it falls over during a prime 95 test.
Add another 0.250mv to the cpu core. test again, and so on.
 
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bigpinkdragon286

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Oct 3, 2012
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Just because it's old, doesn't mean it's irrelevant. Big coolers like the h100i are still being sold as they can still get the job done quite well.

Keep in mind, unless you're using some sort of phase change cooling, water in a custom or closed loop system is still air cooling. The benefit of the bigger radiator coolers is their larger surface area to cool with.

You should probably have a read through the article here for a good, closed loop suggestion:

Tom's, Best Liquid Coolers
 
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bigpinkdragon286

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Oct 3, 2012
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The cooler can be reused on a new CPU, so is more of an investment.

Investing in a 990FX platform in the hopes that AMD's chipset has any bearing whatsoever on the stability of an overclock would be absurd. That's where I would draw the line personally, and say that cost would not be worth it. Would be better to sell the CPU + MOBO and spend the money you get from the sale, plus the money you would have spent on the 990FX board and just switch to an Intel based platform.
 
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Joeyob32

Joeyob32

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Mar 28, 2013
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While I see your point, you could argue that about 99% of every tomshardware users rig man. :) There's really no need for any of it except for a few exceptions.
 
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Joeyob32

Joeyob32

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I'm inclined to agree with you regarding the transition, and its certainly something that I have put quite a bit of thought into. However, I'm going to wait until Dx12 gets its sea-legs before I do so, and hope that my GCN heavy system will shoot to 1,000,000 fps and save me the hassle of having to do that. In the mean-time, its just tinkering really. And I think a liquid cooling system would look cool.....to me....and the 0 other people that will probably ever see it.....ahem.....
 
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bigpinkdragon286

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LOL, I hear you. I paid the extra for the window panel for my case that I never even look at, and the side panel never even ends up being installed.

I run AMD in more than 60% of the machines I deal with on a personal basis including my game system. It's nice that for the last few years, any 1 CPU upgrade can benefit potentially a half dozen systems. Can't say that for Intel.

DX12 has shown some nice gains on GCN, to the tune of say 20%. I wouldn't hope for much more than that. Too many other issues involved, one of which being NVIDIA's influence in the marketplace.

Even if I switched to Intel, I would continue to run GCN based graphics.
 
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