[SOLVED] CPU and GPU Appear to be Throttling Under Load

CinnamonBoy

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Dec 28, 2014
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CPU: AMD FX 8350 Black Edition
GPU: GTX 1060 6GB Version
MOBO: Asus m5a78l-m/usb3 (cheap budget motherboard)
HDD: WD Black Edition 1TB (almost brand new)
PSU: EVGA 500B Bronze
Ram: 4x4 4GB 1600Mhz Hyperx (yeah i know its slow)

Hello,

I appear to be having CPU and GPU throttling consistently when gaming. I will be at 100fps for about 15 seconds and then it will get throttled causing huge stutters and drop down to 10-20 fps redering the game unplayable. It only happens on more intensive games. I dont really feel like spending money on a new build so I just want to fix this one. Especially since you can see that it will run these games (MW and Rust) at a good fps until it gets "throttled." Im pretty sure my temps look good on HW monitor so I'm not sure what could be causing this. It started randomly one day.

One thing I just noticed is that the CPU will throttle at the main menu. (GPU does not because its load is around 3%) and that my GPU is not showing its under load (memory usage stays high around 5GB)

Here is a screenshot at the main menu. (Cant insert it for some reason)

Here is a screenshot while gaming.

Things I have tried:
Factory resetting PC
I have not bothered with BIOS settings
Downloading throttlestop (CPU not supported)
Cleaning computer (improved temps but still throttling)

Thanks ahead
 
Solution
vrm throttling is common for all but the best FX motherboards.

The best you can do is to look at your case cooling.
Take the side cover off and direct a house fan at the innards.
That should help.
Does it look like you could put some stick on heat sinks to your vrm parts?

Your graphics card is fine, it is normal for such a card to run at 80c under heavy load.

Your gaming performance will be poor mainly because fx cores are slow.
Many games will be limited because of single thread performance.
Task manager will not show this because windows spreads out cpu activity over all available cores.

You may find it effective to limit your core count from 8 to 6 or 4.
A simple thing to try would be to use windows power management to limit pc...
Did this ever work? Or is this is a new problem?

What is the thermal margin using AMD Overdrive? AM3+ CPUs don't show accurately in most programs.

In any case, I'd make sure and have a Plan B; 125W CPUs on cheap AM3+ motherboard are strongly not recommended due to the high chance of it working the underbuilt boards and their anemic VRMs to death. If the thermal margin is still comfortably positive, I'd underclock the 8350 by 500 to 700 MHz, making it essentially a 95W FX-8300 or 8310, if I still intended to use this PC for a while.
 
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Did this ever work? Or is this is a new problem?

What is the thermal margin using AMD Overdrive? AM3+ CPUs don't show accurately in most programs.

In any case, I'd make sure and have a Plan B; 125W CPUs on cheap AM3+ motherboard are strongly not recommended due to the high chance of it working the underbuilt boards and their anemic VRMs to death. If the thermal margin is still comfortably positive, I'd underclock the 8350 by 500 to 700 MHz, making it essentially a 95W FX-8300 or 8310, if I still intended to use this PC for a while.

It's worked fine until about a few months ago. I no longer game a lot so I havent had time to get around to it.

I'm aware that my mobo has bad vrms. I was hoping this would not be the root of my problem. I'll try underclocking and update you on my results.
 
Did this ever work? Or is this is a new problem?

What is the thermal margin using AMD Overdrive? AM3+ CPUs don't show accurately in most programs.

In any case, I'd make sure and have a Plan B; 125W CPUs on cheap AM3+ motherboard are strongly not recommended due to the high chance of it working the underbuilt boards and their anemic VRMs to death. If the thermal margin is still comfortably positive, I'd underclock the 8350 by 500 to 700 MHz, making it essentially a 95W FX-8300 or 8310, if I still intended to use this PC for a while.
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Did this ever work? Or is this is a new problem?

What is the thermal margin using AMD Overdrive? AM3+ CPUs don't show accurately in most programs.

In any case, I'd make sure and have a Plan B; 125W CPUs on cheap AM3+ motherboard are strongly not recommended due to the high chance of it working the underbuilt boards and their anemic VRMs to death. If the thermal margin is still comfortably positive, I'd underclock the 8350 by 500 to 700 MHz, making it essentially a 95W FX-8300 or 8310, if I still intended to use this PC for a while.

The temp margins are staying around 20C under load with overdrive. How should I go about underclocking? Do I need to go into the bios or can i do it with software? Also should I drop the voltage aswell and by how much?
 
vrm throttling is common for all but the best FX motherboards.

The best you can do is to look at your case cooling.
Take the side cover off and direct a house fan at the innards.
That should help.
Does it look like you could put some stick on heat sinks to your vrm parts?

Your graphics card is fine, it is normal for such a card to run at 80c under heavy load.

Your gaming performance will be poor mainly because fx cores are slow.
Many games will be limited because of single thread performance.
Task manager will not show this because windows spreads out cpu activity over all available cores.

You may find it effective to limit your core count from 8 to 6 or 4.
A simple thing to try would be to use windows power management to limit pc performance from 100% to 70%
Theory being that if such an adjustment prevents throttling you will do better on balance.

I would not today spend a dime on anything for your pc that can not be carried forward to a new build.
Possibly a good tower type air cooler that will not only help cool the cpu, but will send airflow over the motherboard and out the back.

Another big upgrade would be a ssd to replace the HDD.

For about $300, you can buy a current gen processor that is twice as capable, a motherboard, and 16gb of ddr4 ram.
 
Solution
Another thing to consider, or check... is your CPU cooler actually solidly fitted, and it doesn't move around?

A loose CPU cooler connection to the top of the CPU will often cause it to overheat, and leads to thermal throttling, another user a few days ago on here posted a similar issue, with his PC throttling when under load, transpired the cooler was loose, and with a cleanup and fresh application of thermal compound his machine was back working fine again.
 
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