Question CPU temp permanently at 100c and will randomly boot at low speeds like .8-1.2 instead of 3-4.2

Apr 10, 2023
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My computer for the last month or so has randomly been throttled after being booted. Sometimes it starts up just fine with CPU speeds of 3-4.2ghz and run normally meanwhile other times it'll start up at around 1.1ghz base and get slower and slower if I decide to play a game. The only way I've figured out how to occasionally fix this is to reset the CMOS but that doesn't always work. As for the temperature, I have cleaned the insides of my desktop and reapplied paste and everything correctly and the sensor temps never go below 96c regardless if my watercooler is connected/disconnected or pc has just been turned on for the first time today.



Specs:
MOBO: Z270 Gaming Plus
CPU: Intel Core i7 7700K
GPU: GTX 1070
RAM:16gb
Water cooler: Corsair icue H100v2

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Left side is my computer currently and right side is when it's running "normal". I forgot to take a screenshot of HWMonitor while pc is running fine.

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