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FX8350 - Temperature and Throttling

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  • CPUs
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August 26, 2013 6:26:20 AM

I have fx8350 with evo 212 cooler, 870-C45 FX V2 motherboard, 4gb ddr3 1333mhz and 7950 3gb ddr5.

In any temp monitor I'm getting crazy temperatures about my cpu 120-255c and I thought that problem is with sensor since games worked fine and I never had any restarts or similiar issues. Today when I found that my cpu is throttling I actually removed side of case and I installed my room fan near my case so suddenly temperature went to 65-70c ingame and 35-45c idle. Also after disabling options in bios "cool and quite" or something like that freq is always on 4000mhz and there is no throttling and going down on 2100 or 1333 as it used to which actually reduce performance in my game for more then 50% sometimes.

Is it possible that sensor on fx8350 is broken and when he measure something like 100c+ my cpu starts throttling ?

I'm playing Dota 2 for example, my fps is locked on 120 with lowest graphic details (so there is minimum gpu usage), after 10 minutes CPU freq goes down on 2100 (from 4000) and my fps drop to around 60 which is near 50% as freq.

I'm really unexperianced with fairly new hardware so if someone can make suggestion please do that.

Also on every pc since 2002 I was removing side case but this time I didnt (November last year my latest pc) and then suddenly this happen. Seems like that with open case and this 22" fan in front of case temperatures are actually fairly ok. Can that actually hurt hardware ? Even though I have only positive experiance beside more dust which I'm cleaning every week.

More about : fx8350 temperature throttling

August 26, 2013 6:33:27 AM

Actually even with this, when I was playing Splinter Cell Blacklist, when I reloaded checkpoint temperature went to 255 in 1 sec and Freq dropped to 2100 again. This must be cpu issue but again temperatures are incorrect because cpu wouldnt be in one peace ?
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August 26, 2013 6:34:35 AM

Sounds like you need to do 2 things:

1.) Re-apply thermal paste and make sure it's spread evenly and thinly to get a good heat transfer from your CPU to your heatsink cooler.

2.) Increase airflow in your case via additional case fans. I run 3x120mm fans and 1x80mm fan in my case to get good airflow. May add another fan later (my case supports up to 6 fans)

EDIT: Are you correct in saying you're on a 870 series MB?? If that's the case, you need to move up to a 970 or 990 series MB to get the proper VRMs and such to run the 8350.
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August 26, 2013 6:49:56 AM

Maybe it is the app that doesn't evenly say the truth, or you may want to keep it clearly better cooled (can be Paste issue)
I have read that it can also be VRM issue, the one that supplies CPU electricity/wattage
I also have a motherboard that supports 140 Watts for CPU, and will be downclocked when heavily loaded, but when I only use 6 cores, and 4.2Ghz and 1.32 volts, then the cpu doesn't downclock on heavy load...
The CPU eats alot of electricity, the new 990FX that support 220 Wattage for CPU, will also maybe fix that issue. (Cause haven't confirmed it yet, my cpu goes to about 67 celsius, then downclock, maybe it is the the peak of wattage that causes the downclocks, maybe a myth, know that the temperature also means more wattage is being used...)
Have read some Gigabyte motherboard that has HPC (High Perfomance Computing) has the function that cpu doesn't downclock after use of heaily stress tests...
Possibly look at CPU coolers for paste issue also try if there is any bios options that can help (Giga has HPC, but maybe not yours)...
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August 26, 2013 7:05:05 AM

8350rocks said:
Sounds like you need to do 2 things:

1.) Re-apply thermal paste and make sure it's spread evenly and thinly to get a good heat transfer from your CPU to your heatsink cooler.

2.) Increase airflow in your case via additional case fans. I run 3x120mm fans and 1x80mm fan in my case to get good airflow. May add another fan later (my case supports up to 6 fans)

EDIT: Are you correct in saying you're on a 870 series MB?? If that's the case, you need to move up to a 970 or 990 series MB to get the proper VRMs and such to run the 8350.


I'm with you, and the MB... it's a weird nomenclature, it's actually a AMD® 770 and SB710 Chipset. try a bios update, if you didn't do recently. or try with a 900 series chipset MB. if you have a friend with one of these.
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August 26, 2013 8:41:58 AM

Its not an error. Its a failsafe built into the bios. Your motherboard is throttling itself by reporting temps at 255c because it detects inadequate VRM usage. Its designed to do that. Like 8350rocks said, you need a new motherboard.
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August 26, 2013 12:10:46 PM

So all in all to remove that throttling on fx8350 I will need new motherboard ? Will 970 MSI 970A-G46 be enough ? I cant go over 90$ and I need solution at least for now. Thanks everyone and in advance for mobo question.

Edit: I did reattached cpu with new thermal paste etc and it's same. I also updated BIOS but no difference so I will go for mobo change.
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August 26, 2013 12:13:38 PM

dsr07mm said:
So all in all to remove that throttling on fx8350 I will need new motherboard ? Will 970 MSI 970A-G46 be enough ? I cant go over 90$ and I need solution at least for now. Thanks everyone and in advance for mobo question.

Edit: I did reattached cpu with new thermal paste etc and it's same. I also updated BIOS but no difference so I will go for mobo change.


That board is fine...you can also get the M5A97 R2.0 from Asus for $88 right now too...so I would compare the 2 and see which one you like better.
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August 26, 2013 12:23:41 PM

8350rocks said:
dsr07mm said:
So all in all to remove that throttling on fx8350 I will need new motherboard ? Will 970 MSI 970A-G46 be enough ? I cant go over 90$ and I need solution at least for now. Thanks everyone and in advance for mobo question.

Edit: I did reattached cpu with new thermal paste etc and it's same. I also updated BIOS but no difference so I will go for mobo change.


That board is fine...you can also get the M5A97 R2.0 from Asus for $88 right now too...so I would compare the 2 and see which one you like better.


That one is even more cheaper. Which one would you personally suggest ?
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August 26, 2013 12:45:53 PM

I have the M5A97 R2.0 in my current PC at home...though the MSI board is a good one too. Depends...I really like the Asus BIOS as opposed to other manufacturers, gigabyte is a good BIOS too though.
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August 26, 2013 3:49:24 PM

dsr07mm said:
So all in all to remove that throttling on fx8350 I will need new motherboard ? Will 970 MSI 970A-G46 be enough ? I cant go over 90$ and I need solution at least for now. Thanks everyone and in advance for mobo question.

Edit: I did reattached cpu with new thermal paste etc and it's same. I also updated BIOS but no difference so I will go for mobo change.

No, absolutely not. The MSI 970a-g46 cannot handle the 8350. It will throttle just the same as your current board, and has low-quality VRMs. That MSI motherboard in particular has a high failure rate; do a Google search and see for yourself. I actually had that board and got rid of it in favor of my current Asus board.

Get the ASUS M5A97 LE R2.0 for a few more dollars @ 84.99 from Newegg.
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August 27, 2013 2:19:14 AM

MB AM3+ 970 Asus M5A97 R2.0, PCIe/DDR3/SATA3/GLAN/RAID/7.1/USB3

I ordered that mobo, hopefully it will arive tommorow and I will reply for feedback and if everything works fine. Thanks everyone for suggestions. First time registered on this forum and seems like that I'm staying here.
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August 27, 2013 4:58:20 AM

Good choice, you will be very happy!
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August 29, 2013 10:42:35 AM

Can I just update bios to the newest one or i need exact 1006v ? I have retarded workers in pc service so I will need to do this on my own.
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August 29, 2013 10:48:30 AM

dsr07mm said:
Can I just update bios to the newest one or i need exact 1006v ? I have retarded workers in pc service so I will need to do this on my own.


It will likely come with BIOS v1506, you can update it to the newest version which is v1706 or v1903 or something like that...I forget what the newest one is...
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August 29, 2013 10:52:59 AM

I just found, its 1602. Do I even need to update or its unnecessary ?

Also I'm getting "cpu fan error" at start so I need to press F1. Cables are connected, fan is working on 400-600rpm in bios and I also disabled CPU Q-fan Control so its weird. Any suggestion ?

I will format my OS now, cant even start old OS which is normal I guess after replacing motherboard.
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August 29, 2013 10:55:08 AM

dsr07mm said:
I just found, its 1602. Do I even need to update or its unnecessary ?

Also I'm getting "cpu fan error" at start so I need to press F1. Cables are connected, fan is working on 400-600rpm in bios and I also disabled CPU Q-fan Control so its weird. Any suggestion ?

I will format my OS now, cant even start old OS which is normal I guess after replacing motherboard.


Reinstall Windows and see if the fan error goes away...

I would update to newest version of BIOS, personally.

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August 29, 2013 10:57:08 AM

Would you suggest me to do that if I say that I will do that for first time ? Also can I do that after installing new OS without need to do that again after bios update lets say in couple days ?

I did downloaded .zip on other PC and I have formated flash..so if you know where to find exact guide I would do that since I see that you have same motherboard. Thanks in advance.
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August 29, 2013 11:00:17 AM

dsr07mm said:
Would you suggest me to do that if I say that I will do that for first time ? Also can I do that after installing new OS without need to do that again after bios update lets say in couple days ?

I did downloaded .zip on other PC and I have formated flash..so if you know where to find exact guide I would do that since I see that you have same motherboard. Thanks in advance.


Yes, you can do it after you re-install windows.

There is a guide on YouTube for updating BIOS on Asus MB.
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August 29, 2013 11:14:43 AM

Thanks. Unfortunately cpu temperature is again going on 79/80c in bios. Something is wrong with cpu.
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August 29, 2013 11:20:28 AM

dsr07mm said:
Thanks. Unfortunately cpu temperature is again going on 79/80c in bios. Something is wrong with cpu.


You're sure your heatsink fan is installed properly?

You can contact AMD for warranty information online @ amd.com and go to support. Talk to their tech support first though, and see if they can help you trouble shoot the issue.

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August 29, 2013 11:58:34 AM

8350rocks said:
dsr07mm said:
Thanks. Unfortunately cpu temperature is again going on 79/80c in bios. Something is wrong with cpu.


You're sure your heatsink fan is installed properly?

You can contact AMD for warranty information online @ amd.com and go to support. Talk to their tech support first though, and see if they can help you trouble shoot the issue.



Seems like that is installed properly. I just noticed. CPU Fan Speed is 400rpm and temperature is on 66c. I guess or at least I hope that after installing OS rpm will jump ? I'm getting error because in options by default everything under 500rpm is actually a "error" so I disabled that and it's fine. Just hope that rpm will go high when I start installation otherwise something can really go wrong.
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August 29, 2013 12:07:51 PM

dsr07mm said:
8350rocks said:
dsr07mm said:
Thanks. Unfortunately cpu temperature is again going on 79/80c in bios. Something is wrong with cpu.


You're sure your heatsink fan is installed properly?

You can contact AMD for warranty information online @ amd.com and go to support. Talk to their tech support first though, and see if they can help you trouble shoot the issue.



Seems like that is installed properly. I just noticed. CPU Fan Speed is 400rpm and temperature is on 66c. I guess or at least I hope that after installing OS rpm will jump ? I'm getting error because in options by default everything under 500rpm is actually a "error" so I disabled that and it's fine. Just hope that rpm will go high when I start installation otherwise something can really go wrong.


In your BIOS, go into advanced settings, and set your fan profile to minimum speed 600 RPM and mode to "Turbo". Then disable all the Sleep states or "C" states
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August 29, 2013 12:21:06 PM

Ok this is most fcked up situation really.

If my case stand as it needs to be rpm is only 200-400, but If I get my case on side (bad english terms), basically to lay down, then my rpm is going on 1500 ? temperature is 50c. Literally in one second, I'm rotating my PC right now and I'm getting 200 - 1500rpm depending in what position is my case...How the hell is that possible ?
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August 29, 2013 12:31:15 PM

I dont have problem with keeping my PC case to lay down, but why ? Is 1500rpm in bios actually a "default" rpm or even in this position is not working properly ?
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August 29, 2013 2:09:50 PM

Ok so fresh OS is up. Everything works fine. In Prime95 I'm getting 52-55c after 1 hour that is ok I guess ? Also CPU is not oclocked but in Core Temp I'm getting 4334.28 locked on 100% usage (216.71x20.0), is that normal ? Didnt had that on my old motherboard.

Also by using SpeedFan I can see that RPM is on 1566, is that max for evo212 or he dont even need to go higher ?
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August 29, 2013 2:16:21 PM

dsr07mm said:
Ok so fresh OS is up. Everything works fine. In Prime95 I'm getting 52-55c after 1 hour that is ok I guess ? Also CPU is not oclocked but in Core Temp I'm getting 4334.28 locked on 100% usage (216.71x20.0), is that normal ? Didnt had that on my old motherboard.

Also by using SpeedFan I can see that RPM is on 1566, is that max for evo212 or he dont even need to go higher ?


You are running fine, you used the Asus Tuner and it increased your baseclock, so you are technically overclocked to 4.33 GHz right now...and your temps are fine there.

Enjoy!
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August 29, 2013 3:00:00 PM

8350rocks said:
dsr07mm said:
Ok so fresh OS is up. Everything works fine. In Prime95 I'm getting 52-55c after 1 hour that is ok I guess ? Also CPU is not oclocked but in Core Temp I'm getting 4334.28 locked on 100% usage (216.71x20.0), is that normal ? Didnt had that on my old motherboard.

Also by using SpeedFan I can see that RPM is on 1566, is that max for evo212 or he dont even need to go higher ?


You are running fine, you used the Asus Tuner and it increased your baseclock, so you are technically overclocked to 4.33 GHz right now...and your temps are fine there.

Enjoy!


Can I do something about my Evo212 and case positioning or I dont need to worry about that ?

Also my computer freeze on core temp and fanspeed softwares sometimes for no reason but otherwise it's running great, even better then with old motherboard in some games. I'm using HWMonitor as I used to all the time and works fine.
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