FX8350 won't overclock even by 100MHz

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ericmay

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Jul 13, 2014
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Hello, I just purchased an unlocked 8350 (4.0 GHz) and installed it on my Biostar TA970XE motherboard. Whether raising the multiplier or the base frequency - even the smallest amount - I can not get any overclock performance at all: I lose a couple of cores (via Prime 95),or, if I raise the core voltage, the system crashes. I have tried the stock cooler and a cooler master seidon 120V water cooler, and either one resulted in temps in the high 50s. I have a 600W power supply, 8GB of DDR3-1600 memory, and a GTX770 graphics card. Any thoughts?
 
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damric

damric

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Sep 17, 2010
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There are a few flags raised already by what you said but I need more information, like specifically what PSU model and what RAM?

So far I see you have inadequate motherboard for overclocking 8 core FX, as well as inadequate cooling. 600W PSU might also be inadequate if it is not a solid model.

I seriously doubt it is stable even at stock. Might want to test that theory with IBT or Prime95 75% Blend.
 
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wdmfiber

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Dec 7, 2012
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That $80 board is garbage. FX chips are very inefficient even stock clock, overclocked they can draw over 200 watts. You need a board with quality components. Problem is... FX chips are old and AM3+ is dead. So it's really not worth putting any money into that rig.
http://www.tomshardware.com/forum/282653-29-8350-overclocking-help

In the future look to Tom's for help, buy modern tech & don't fall victim to corporate marketing:
http://www.tomshardware.com/reviews/gaming-cpu-review-overclock,3106.html
 
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DSzymborski

DSzymborski

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Nov 19, 2010
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While it might be an additional problem other than the power supply, the first step is to always remove the dangerous, junk power supply. Kinda like if you see a guy trapped under a fallen tree - he might have originally fallen due to a heart attack, but the first step is getting the tree off of him.
 
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axe1592

axe1592

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I agree that the low end motherboard is the first suspect. FX chips suck down a whole lot of juice and youve gotta have a motherboard with enough beef to handle it and Im afraid yours wont.

Second, Id recommend using OCCT and Intel Burn Test for your stress testers instead of Prime95. Lots of people are getting weird results with it including places like HardOCP. Ive quit using it altogether and use OCCT and IBT. If I can get passed 4-5 hours of OCCT Ill fire up Intel Burn Test and if I can get thru 20 runs of it then Im golden. And so far thats always worked and proven to be a stable 24/7 overclock.
 
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axe1592

axe1592

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axe1592

axe1592

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A Cooler Master Hyper 212 would be the minimum youre gonna want. That is a great cooler and probably the best in the world dollar for dollar but it wont be enough for anything much over 4.3 GHz. I ran one on my 8150 when I first got it and used my old Hyper and I was able to hit 4.3 @ 1.35V before it ran out of horsepower.

A Corsair H80i would be about what Id consider minimum for overclocking a FX chip into the mid 4's. My H100 has enough cooling performance to handle my old 8150 and my current 8350 running at 4.8 GHz so if you could scrounge up $100 for that, it would be a good way to go.

The old tried and true Noctua D14 or the newer D15 are pretty hard to beat. Just about as good of performance as a H100i but will run you $25-30 less and will have very little noise. Thats the downside to the AIO coolers like the H80 or H100, they run a little noisier than an old fashioned heatsink/fan like the D14 or the Hyper 212.
 
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ayebee

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Jul 10, 2014
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I use an fx-8350 with a asus sabretooth 990fx r2.0 mobo, a corsair CX750M PSU and a corsair h80i cooler- thing runs beautifully. Wish I would've spent more on the PSU, but for now it is doing it's job.

I overclocked to 4.5ghz (stopped here because I got tired of testing over and over) but it could go a lot higher as long as you are running proper voltage. I'm at 4.51ghz @ 1.38v and a 225bus speed with no crashes or failures.

Funny enough, I fell asleep running prime95 and actually woke up about 6 hours later and my core temp was peaked at 57-58 teetering back and forth.

I would suggest you get something that measures your actual core temp opposed to socket temp while doing all of this, as i found out that most applications don't measure core temp properly on the AMD processors (i could be wrong though).

Specifically, I use a couple things: CPUID - HWMonitor (Free) AMD OverDrive (Free) and Corsair Link (Free I think) It's certainly overkill to have so many monitors but is nice to be able to triple check temps - last thing you want to do is have to buy a new processor because of misinformation.
 
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wss_003

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Jan 13, 2014
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Fx are hot and power hungry but i think some people over play that i have had a 9370 and an h100 more than kept up at stock clocks and i have an 8320 at 4.9 in my rig now and i have a single 360 rad in the cpu loop and it handles things very well but the mobo is where the fx will show you your weaknesses and it will do it in short order i have a crosshair v formula z under water and if you plan on pushing the chip very hard 24/7 id recommend the same
 
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axe1592

axe1592

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Yup. There are a lot of coolers that can handle overclocking a FX chip but there are only a hand full of motherboards that are up to the chore.
 
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