AMD 8350 Overheating with Corsair H80i

Joey Kuca · Feb 16, 2016

Hey, so yeah, my CPU is going way too hot. Like 100c hot.

I am using an AMD FX 8350, with a Corsair H80i, and a case full of chasis fans, yet, when I turn my computer on, it slowly rises to 100c, then just shuts off. All of the relevent fans are spinning are spinning, and that is all I can really find out, because my computer pretty much has a lifespan of about a minute before it switches off.

Is my computer overclocked? Yes. I used the AMD Overdrive tool to automatically overclock it, but that was 2 days ago, and I have been playing Rise of the Tomb Raider since then, so, surely if it was going to go supernova on me, it would have been then, not when I am trying to turn my computer on, and when it is idle.

Any ideas as to the cause of the problem, and any suggestions as to how to fix it?

Thineswar · Feb 16, 2016

1. you should always overclock manually, never use any software to do it automatically
2. overdrive may have not done a proper job while tuning your cpu, hence the overheating. go into the bios and change all the settings back to stock and see if the problem persists.

dudeman509 · Feb 16, 2016

Doubt it's an OC'ing issue causing it to get THAT high.

Did you smear thermal paste all over it or do the small dot/line method?

Is the top of the cooler mounted correctly to the CPU? I think I'd pull it off and re-check.

spdragoo · Feb 16, 2016

1. If the OC was the only change you've made recently, then it's the most likely cause. It's also the simplest one to fix -- turn off the OC & see if the temp issue persists. If it doesn't, it confirms that the OC was the culprit. You can still OC, you'll just have to take it in increments until you get a stable OC that doesn't threaten to melt the case.

2. If the temp issues persist after the OC is removed, then it's obviously not the OC. You'll want to remove the cooler, remove the thermal paste, reapply thermal paste (not too much, the "grain of rice"/"pea" size amount is probably best), then remount the cooler.

3. If that still doesn't fix the issue, there may be something else going on: furnace vent pointed right at the intake fans, exhaust fans blocked, exhaust fans are looping back into the intake area, etc.

DonkeyOatie · Feb 16, 2016

What motherboard do you have?

Joey Kuca · Feb 16, 2016

@DonkeyOatie I am using an MSI 970A Krait Edition

@Dudeman509 I literally haven't touched the thing in about a year, now. It seems to have been seated correctly, and the thermal paste has been fine for all that time, hell, even a few hours before ot started going crazy, when I was playing Tomb Raider.

@spdragoo I will see what I can do. Thanks for the advice. I just have to figure out how to revert the overclock on the BIOS in a couple of minutes, because my CPU temps immediately start to climb rapidly as soon as I turn my computer on. I only really have a minute or 2.

dudeman509 · Feb 16, 2016

That's odd. Do you bring it up to 100% utilization often?

I've been playing Tomb Raider for hours on an 8320 @ 8350 speeds and it's stayed under 130F with my 212 Evo. It works the CPU hard, but not flat out like the graphics card is being worked.

Joey Kuca · Feb 16, 2016

Not that I know of. Its not like I check what my CPU is doing, often, but its not like I deliberately put my CPU under extreme stress. Most of my time playing games recently has been XCOM 2, Rise of the Tomb Raider, and a lot of Heroes of the Storm. A few hours later, and my computer suddenly doesn't even want to be turned on, let alone playing anything.

DonkeyOatie · Feb 16, 2016

The MSI 970A SLI Krait is a good motherboard, capable of running and overclocking a FX 8350. Just checking that as a possible problem.

The symptoms are one of cooling failure. The easy possibilities are:

1. Waterblock needs to be in better contact with the CPU (thermal paste failure, or waterblock mounting failure)
2. Pump working less well or completely stopped (fluid will not circulate properly and there will be a measureable temperature difference between the output of the waterblock and the intake for the radiator.)
3. Blockage in piping (same symptoms as above)
4. Clogged radiator (same symptoms as above)
5. Externally clogged radiator or radiator fans in effective. (output from radiator is warm)

Maybe your OC messed with the fan settings of your motherboard and has slowed the pump and/or radiator fans. (or a header/plug has come disconnected)

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