AMD 8350 overheating with extra fan and pro case

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Ash73

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Nov 27, 2015
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I bought an AMD 8350 2 years ago. I was very happy with the speed since I loved streaming but apparently the temperature were always high since the first day I got it. On idle with a stock fan it was 30deg celsius but on gaming or streaming it went up to 75-85 and got restart. I asked to couple of friends and all of them told me to get an extra fan.
(case HAF 912, GTX 770 graphic card, 1200W PSU, Asus M5A97 R20 motherboard.)

So I bought a zalman CPU fan which was around $100. Installed it, renewed the thermal paste and everything was fine for a while.

The heat was reduced from 75-85 to 65-75 celsius but that lasted couple weeks. The temperature went up again. On idle everything looks cool. 20-25deg celsius. But when I try to play any game, the temperature goes to 80 and than a shutdown happens with CPU OVERHEAT errors.

I updated my bios, re-applied thermal paste, nothing appears to solve my problem. My CPU is on Normal mode on bios so nothing has ever been overclocked.

Does anyone have any idea how to fix this problem? Can I underclock my CPU so that I can play games? What kind of settings should I use.

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One thing for sure is that I will never ever buy AMD CPU again.
 
Solution
madmatt30
Obviously 10c less is better but still not good.

Don't reduce the bus speed to underclock - that also downclocks ram, the USB & the PCI bus.

Set your bus speed back to 200 & under clock by reducing the multiplier to 16.5 - this will give you the same 3300mhz clock speed.
Your voltage 'should' decrease automatically .

I would also suggest downloading amd overdrive
http://www.amd.com/en-us/markets/game

Install it & run , monitor your temps from the CPU status tab using the thermal margin.
Its more reliable than 3rd part stuff like hwmonitor.
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lodders

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I think that there is something wrong with your processor.
It should not get that hot, and it sounds like you have a problem from new.
However, it is 2 years old, so I assume it is not under guarantee.
my only suggestion - reduce CPU speed to 3.7GHz, and see how far you can reduce Vcore before it crashes. Lowering voltage a bit reduces heat a lot.
 
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Ash73

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Thanks for the advice, can you help me how I can lower the CPU speed? Which voltages and speed should I lower, I really don't want to crash it at this point :)
 
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lodders

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Basically, google a guide to overclocking on your make of motherboard, but instead of increasing speed and voltage, decrease it.
 
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lodders

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Good idea!!
Depends on the game you are playing though.
Actually, reducing speed to 3.7Ghz is only a 8% drop, he is very unlikely to notice the performance difference.

Both are well worth trying - see which works best...
 
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Lawrence Orsini

Lawrence Orsini

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I agree, I'm curious to know how these two compare. Dropping cores should have a pretty dramatic effect on temps, he may be able to get away with losing 1 or 2 cores - which he probably wasn't fully utilizing anyway. Added plus is it's easier than spending hours on clocking.

From experience, dropping voltage and clocks works well but might take some pretty big changes to have a significant impact in loaded temps. I'd be surprised if 3.7 would do it unless he really spent some time stepping on the voltage as well. If he is going to spend the time clocking it might be best to start reducing voltage 1st and see how low he can go against that 4013 MHz

Might be to novice to pull it off.
 
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madmatt30

madmatt30

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What CPU cooler do you actually own ??
I didn't know zalman did one that cost $100 in all honesty


Your vtages etc looks fine , are you 100% certain that cooler is fitted properly.

Normal idle temps & huge load temps are normally a sign of bad thermal contact in my experience
 
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Ash73

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I am %100 sure everything is setup properly. This is my 50th system that I have built. I amnot saying that I am an expert but atleast I know how to put the thermal paste properly. Well I live in Turkey, the price tags are 3x here so I think it might cost $50-60 in US. I don't know the model but it is pretty big with a single fan. It is cooler then the stock fan, but not that cool. The case also has a perfect air circulation which I have tested dozen of times.

I reduced the bus speed to 167 which equals to 3.332mhz. Here are the results without changing the voltage. (couldn't find a decent guide to what voltage I should reduce)

All of the tests have been made from adobe premiere video rendering.
jXNHBuI.jpg


So I think its getting better? normally It would go up to 79 deg celsius
 
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madmatt30

madmatt30

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Obviously 10c less is better but still not good.

Don't reduce the bus speed to underclock - that also downclocks ram, the USB & the PCI bus.

Set your bus speed back to 200 & under clock by reducing the multiplier to 16.5 - this will give you the same 3300mhz clock speed.
Your voltage 'should' decrease automatically .

I would also suggest downloading amd overdrive
http://www.amd.com/en-us/markets/game

Install it & run , monitor your temps from the CPU status tab using the thermal margin.
Its more reliable than 3rd part stuff like hwmonitor.
 
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Solution
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lodders

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Reducing the speed will cool things down.
But reducing the voltage will cool things a lot more.
By turning speed down to 3.7GHz, you should be able to use lower CPU core voltage.
Read motherboard manual or google your motherboard BIOS to find out how.
CPU-Z says you are currently running 1.23V
Try dropping to 1.2V and see if it still boots.
If it does, do a stress test

Your manual will also tell you how to turn one of your cores off
 
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Ash73

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You Sir deserve a big thumbs up!

The CPU speed has been lowered as you said and now it doesn't go higher than 65 celsius!
I tried rendering video and here is my new temperature stats.
kiNcIkf.jpg

 
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