AMD FX-8350 4.0Ghz overheating on LIQUID COOLER!

Neloangelo123 · Dec 12, 2013

Hello guys

I m really going crazy here.

It has been 2-3 weeks since i bought this computer, i chose the components and the company assembled them for me.

I have put a liquid cooler on purpose on my AMD FX 8350 @4.0Ghz because i knew already those CPU are heating more than intel.
Also i built this rig for video editing (and gaming ofc) so i wanted my CPU to be as cool as a winter breeze!

I downloaded HWmonitor and Core TEmp, under heavy stress (video rendering) HWmonitor shows 78 degrees (celsius) for CPU package while Core Temp shows max of 69-70 degrees for cores.

The questions i have are the following:

1) When i put the CPU in heavy stress(video rendering)i can watch the tempereture start climbing fast, while frequency tops at 100% on all cores, when temperature reaches 69-70 suddeny the frequency drops at around 60-65% of maximum. Is that normal? shouldnt it be working at full clock speed when 100% usage? (if temperature was right that is)
2) Tj max as shown on Core TEmp is 70 degrees, is that for cores or for something else? If the cores work at 69 is it a problem?
3) I see people here that have OC the same CPU to 4,8GHz and the temperatures do not exceed 60 degrees with air coolers, so what is wrong here it shouldnt reach 70-80 degrees with stock clock speed! and with liquid cooler on top! With liquid cooler i should have max stress temperatures of not over 55-60 degrees, is that right?

My specs are:
cpu: AMD FX 8350 4.0Ghz ==> Corsair Hydro series H60 liquid cooler on it
gpu: XFX Radeon HD7870 2gb
mb: ASRock 970 Pro3 R2.0
ram: 2x 4gb Corsair Vengeance @1866
rig: Thermaltake Overseer full tower with 3 big coolers (top-front-bottom)
psu: Corsair TX850M 850W
SSD 120gb samsung EVO series

Please any help of what is going on would be appreciated.

Thanks

rolli59 · Dec 12, 2013

1 if it hits the thermal throttling limit that would happen.
2 that is the thermal throttling limit
3 looks like the Cooler install is suspect and needs to be redone.

St0rm_KILL3r · Dec 12, 2013

In that case replacing the thermal paste is the best option. Fx 8350 still runs much cooler than hasswell but that kind of temps even on liquid cooling at stock frequencies are really unusuall. So replace the thermal paste.

cemerian · Dec 12, 2013

every cpu is different and the cooler you have is insufficient for that cpu you need atleast h100i for these things, as for the question about 4,8 every chip is different and not every chip will reach above 4,0ghz, also whats the voltage settings for your cpu

rolli59 · Dec 12, 2013

The cooler should be plenty for the CPU at stock http://www.hardwaresecrets.com/article/Corsair-H60-CPU-Cooler-Review/1681/6

Neloangelo123 · Dec 12, 2013

cemerian :

How do u actually know that i need at least H100? everyone i asked said that H60 is ok, not SUPER but pretty much ok. It should not reach 70-80 degrees even with H60.

What do u mean by that? that EVERY chip is unique? We are talking about factory made chips, not human beings.

My voltage goes to max of 1,4V for cpu. I dont know if thats ok i did not mess with that.

azzazel_99 · Dec 12, 2013

Bad water pump

cemerian · Dec 12, 2013

because the temps dont show ok to me, every chip you buy will be different because the ar basicly all faulty chips that simply passed the test to operate @ designated mhz, wich means you can get a cpu that will oc all cores to 5ghz or you can get one that wont even oc one core to 4,5 ghz that;s what i mean by every chip is unique (there is a reason they call it silicon lottery you know), and as people stated before make sure your cpu cooler is correctly attached and you could also reapply the thermal paste on it

JOOK-D · Dec 12, 2013

There are a few things that could be wrong. The company may have not seated the cooler correctly, or applied too much thermal paste. Firstly, I'd advise removing the CPU cooler, cleaning off and reapplying thermal paste (pea method) and reseating the cooler. If no, the cooler could eb faulty - if it's an all-in-one liquid cooler they tend to have their problems.

Also the max temp you should reach is 62C on the core, and 70C on the socket. As for the frequency dropping when you reach above 70C it's probably thermal throttling.

Worst case scenario is a faulty chip, doubt it though.

Neloangelo123 · Dec 12, 2013

JOOK-D :

Your reply is very good i will go with that.
But if the cooler is not seated correctly or if there is too much thermal paste or even if the cooler is faulty, wouldnt it affect the temperature across all scales? why only at high stress? why all other times the cooler works properly and then during heavy stress it loses it? And why does it stop at 70 or even 75 degrees and doesnt go more?

Supahos · Dec 12, 2013

there isn't as much heat to be dissipated when its not running hard, so it doesn't get as hot. It stops at 70 or 75 b/c the computer starts slowing itself downt to keep from burning up, at a certain temp it will actually turn off to avoid frying itself.

Neloangelo123 · Dec 12, 2013

Supahos :

For nearly 4 weeks now (since i bought this rig) i work and play games with these temperatures and not even once i had any shut down or any performance issues.
How do u explain that?

azzazel_99 · Dec 12, 2013

Not getting hot enough

cemerian · Dec 12, 2013

are you sure open up hwmonitor sensors and leave them on while gaming or stress testing cpu and check if it isnt throttling

JOOK-D · Dec 12, 2013

Neloangelo123 :

It will shut down far after you get the performance hit. It's possible that the problem was there at the beginning but has gotten worse over time.

Supahos · Dec 12, 2013

additionally its very possible the pump could be failing and those things tend to get worse slowly and then suddenly once they can't keep up easily become noticable very quickly.

gamerk316 · Dec 12, 2013

Neloangelo123 :

The CPU lowers its clocks when it hits a high enough temperature; usually 80C if I recall right. This reduces temperatures since the CPU is doing less work. So the CPU never hits auto-shutdown (100C I think), but you lose a LOT of performance since the CPU will be so heavily downclocked.

Fact is, something is wrong with your cooling setup. Period.

Supahos · Dec 12, 2013

That is an AMD rig it shuts off well before 100C. Don't fully remember the right number but I know intel allows their chips to run much warmer than AMD. (not an intel vs amd discussion just pointing out that it won't go anywhere near 100)

Neloangelo123 · Dec 12, 2013

Ok i see

I will have it checked tomorrow morning by the assembly company and let you know guys.

thank you all so far

Neloangelo123 · Dec 12, 2013

Just to be sure guys before i go to the assembly company and kick their ass,
is there ANY chance this is because:
1) The cpu voltage needs tuning
2) It has been like 4-5 days since i unparked all cores (but i have searched thoroughly that unparking does not cause overheating in any way)

Thanks for the reply

Supahos · Dec 12, 2013

The unparking can cause issues if the software you used to do it is goofed up, there is no need to do that to a modern cpu. The voltage could need tuning but I don't see why as its a 4 ghz processor out of the box and running at that speed now.

Neloangelo123 · Dec 12, 2013

Supahos :

Speaking of that, it has been the last 4 days that i did the unparking that i have a strange small problem.
Sometimes when i restart the computer, it shuts down instead and then when i try to turn it on its failing to start (i press the ON button, the rig starts working i can hear/see all the fans and the lights but the screen remains black, it doesnt even reach the point that boots on windows, i dont have the chance to enter BIOS)

Could that be because of the unparking or is it because of the temperature overload and how can i possibly fix that?

JOOK-D · Dec 12, 2013

Try reverting the core unparking first. You shouldn't even need to do it on a piledriver (x3xx) processor.

rolli59 · Dec 12, 2013

Supahos :

From OP's original post "Tj max as shown on Core TEmp is 70 degrees" throttle temp!

Lessthannil · Dec 12, 2013

Seems like the fault lies in the water cooler or how its mounted. The 8350 is toasty but it isn't that bad.

AMD FX-8350 4.0Ghz overheating on LIQUID COOLER!

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