Random FPS drops while playing games with my FX-8350, help me figure this out.

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Hello everyone! since so many months ago, i have some random FPS drops while playing any game on my PC, since some days ago, i started to use the task manager and HWmonitor to see what is going on, i see something on my CPU usage but i am not sure what it is, when the FPS drops, the blue top line goes down, it's like the frequency but not sure, here is the image.

http://imgur.com/y6e3LZw

PC Specs:

AMD FX-8350 at 4.00Ghz never OC'd
CPU Cooler Hyper 212 Evo
PSU Corsair 750w modular
GPU r9 280 Dual X
Mobo Asus M5A78L-M/USB3
SSD Samsung 850 pro 500Gb
 
Solution
Eliasand
Yes, it's probably the poor power-phase on that motherboard that are causing the troubles.
They aren't capable of giving enough power to the hungry 8-core, and therefore they try to work harder, overheat, and make the CPU throttle to protect it.

I had the exact same issue with my 6350 on a cheap 3+1 VRM board, so i bought a new one. I'm currently using the Gigabyte GA-970a-UD3P. A great board for overclocking and a 8+2 power phase.
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DonkeyOatie

DonkeyOatie

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I copied this answer from another thread.

There may be other issues, but you have a big problem with your motherboard. That motherboard's power delivery system, (VRM) is not capable of driving a FX83xx series chip, reliably, at full power, especially in a high-performance application like gaming. The VRM overheats and then must throttle back until it cools down to a safe temperature.

You can help a bit by using zip ties to fit a case fan to blow down on the VRMs (the components on the motherboard between the socket ant the I/O shield) A top-down air CPU cooler would work too.

In the long run, you must replace your motherboard, or throttle back your CPU to prevent this.

 
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Eliasand

Eliasand

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Nov 8, 2015
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Yes, it's probably the poor power-phase on that motherboard that are causing the troubles.
They aren't capable of giving enough power to the hungry 8-core, and therefore they try to work harder, overheat, and make the CPU throttle to protect it.

I had the exact same issue with my 6350 on a cheap 3+1 VRM board, so i bought a new one. I'm currently using the Gigabyte GA-970a-UD3P. A great board for overclocking and a 8+2 power phase.
 
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Solution
M

maggost

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Thank you guys for the answers, i don't know which mobo should i get for replace because i live in Italy and the catalog is not that much. Plus i don't want to overclock.

Another thing, what if with the new motherboard, the CPU is still struggling?
 
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Eliasand

Eliasand

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99% sure it will solve your issue. Most motherboard producers add high-tdp power hungry CPU's in their support list on cheap motherboards although they do not support them fully. They probably just test that they somewhat work together and call it a day.
 
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M

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Alright i will trust in you! lol

Which mobo should i get? i can't spend more than 100€
 
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Eliasand

Eliasand

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The one i listed, Gigabyte GA-970A-UD3P, is a good board. Also the MSI 970 GAMING. For under 100€, it might be hard to get a good motherboard though.
 
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M

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The problem is that i have a CoolerMaster n200 so i need a mini ITX or Micro ATX motherboard.

 
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Eliasand

Eliasand

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Unfortunately there are no 8+2 boards in mATX, at least what i know of. So there's another problem.
What you can do is disable the throttling and pretty much fry your VRM's. It might work, but it might also damage your board and it's not recommended.
 
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I don't want to risk so i think i have to find another case at the moment my amazon cart have these items:

- MSI Mod SoAM3+ 970 Gaming
- Corsair CC-9011075-WW Case Mid Tower Atx Carbide 100R

I just really need to be sure if replacing the motherboard will fix my computer.
 
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Eliasand

Eliasand

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It most probably will. The main problem with buying the FX's is the poor motherboard support and that's why many people don't go near the old FX CPU's. Your current motherboard is a cheap 4+1 VRM one, and the symptom you have is most likely caused by it. This is a common problem in AMD systems.
 
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DonkeyOatie

DonkeyOatie

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A quick check of Italian site shows ZERO mATX board you can use.

That selection is good.

For a first check, do as I suggested and move a case fan and zip tie it temporarily in place to blow directly on your VRMs. If that solves all or most of the problem, then you have shown that replacing the motherboard will fix the problem (if it is a good one)
 
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M

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Any youtube video where explains how to do it? i dont want to mess that up.

 
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