CPU Temp at 100c on boot

[JoshRC]

G'day
When i start my PC it boots without an issue and CPU temp hangs around 30c but about 5 minutes later very suddenly it spikes to 100c at which the PC automatically turns off. After this i can boot the PC again and there is no issues the temp rarely will go above 50c.

My CPU is overclocked but has been for a good part of a year and only started overheating the last week. Iv had an after market liquid cooling system on it without issues for the last 9 months until now.

Iv looked at lots of forums where people have had problems with over heating CPU and tried to do many things to fix it without luck.

PC Specs
Intel i5 4690k overclocked to 4.5GHz
Aftermarket liquid cooling
Gigabyte r9 270X 2gb
2 x Kingston Fury Hyper X 8GB RAM
Kingston SSDnow
WD Blue caviar HDD
6 Corsair case fans
Windows 10 Pro x64

 

[The prime mediocre]

Does it still happen at stock settings? What cooler do you have? I assume you're talking about an open-loop, but "aftermarket" could also refer to an off-the-shelf closed-loop cooler.

 

[JoshRC]

Does it still happen at stock settings? What cooler do you have? I assume you're talking about an open-loop, but "aftermarket" could also refer to an off-the-shelf closed-loop cooler.

Yeah seems too. The cooler is a Deepcool Gamer Storm Maelstrom 120 Liquid CPU Cooler which is closed loop right? I dont really understand the difference between the two.

 

[slingsrat]

FYI "Closed-loop" coolers are produced like that and you just install it. "Open-loop" you build yourself to your own specifications using parts. "Aftermarket" is simply anything you do to your PC yourself to change it from it's original set up.

 

[Ignorance101]

One thing you might be able to do to isolate the problem to the cooler is to feel the temperature of the exhaust coming from the radiators, just with your hand. If the temperature on the cpu spikes and the air heats up quickly along with it, then the cooler is probably not at fault. However, if there is no change in exhaust temps when the spike happens, you can try diagnosing the specific issue with the cooler. Even the most basic liquid cooling solution should never allow the chip to heat up to 100C so quickly that the computer is forced to shut off, unless there is a major defect or malfunction.

If it isn't the cooler, then you almost certainly have a program that auto starts that is hard-capping your cpu and causing it to overheat. You can try booting in safe mode and seeing if the problem persists. If it doesn't then you just need to find out which program is the culprit.

Hope this helps

 

[The prime mediocre]

Does "many things" include returning to stock settings? Everything: CPU, RAM, GPU (just for good measure). Just roll everything back to factory.