Topic Title: FX 8350 running 78C on prime95
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Created On: 08/10/2013 10:07 AM
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 08/10/2013 10:07 AM
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muumia4
Peon

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Joined: 08/10/2013

First question is what is the MAX temperature for fx 8350? AMD has been to lazy to write it on the product page.

At first i installed my new CPU with stock paste and temps where ~60 while fan was at 6000 rpm (similar to standing next to a airplane). I cleaned up the stock paste and put on the new one (Titan Nano Grease) and rpm went down to 3000 and temps where at 45 on idle and that seemd like a good drop. But when i used prime 95 to see the power consumption, the temps went up to 78 and staid there. The sidepanel is of and i had no case fans. Right now im running 44C at summer so is it ok for CPU to go like 60C on load and run there for some hours? How bad will it be for cpu?

 

EDIT: Well i was stupid enough to not read the sticky that anwsered some of my questions except last one.

 08/10/2013 11:03 AM
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black_zion
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For the stock heatsink with high ambient temps and no airflow that is to be expected. You need to get a case with good airflow and preferably an aftermarket heatsink. You need to keep it under 60°C as much as possible. Also without proper airflow your motherboard will start to overheat as well.

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ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 08/12/2013 01:38 PM
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Mime
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The max temp for the 8150 and 8120 is 61C.  The spec sheet for the 8350 is almost completely blank(spec sheet), but since they're all on the same stepping and process it's probably pretty close.

Running a chip a few degrees above it's max temperature probably won't cause any immediate problems, but if that continues over time you'll notice the system starting to act strange with artifacts happening here and there or things crashing for no apparent reason.  The higher the temperatures, the faster that will start to happen.



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Edited: 08/12/2013 at 01:46 PM by Mime
 08/18/2013 01:08 AM
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MisterEd
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Originally posted by: black_zion For the stock heatsink with high ambient temps and no airflow that is to be expected. You need to get a case with good airflow and preferably an aftermarket heatsink. You need to keep it under 60°C as much as possible. Also without proper airflow your motherboard will start to overheat as well.

I apologize for stepping on this thread but I noticed that you have an FX-8350 and a Corsair H60 like I have. My CPU core temps are:

Idle: 12C
Load: 54C (Prime 95)

Are your temperatures similar?

It looks like the sticky implies that the 60C max temp is the CPU core temp. If this is so then everyone needs to keep this in mind. For example the CPU socket temp under load for my FX-8350 is about 66C. If I didn't understand the difference I might believe wrongly that my CPU was exeeding it's max temperature under load.



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 08/18/2013 11:47 AM
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black_zion
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I idle around 16°C and in Prime95 (blend) I top out at 48°C (core temps), with an ambient of 26°C. The CPU socket temperature on AMD motherboards is calculated by using an offset value.

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ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
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