I've built a custom PC with an all-in-one (AIO) liquid cooler, but I'm facing some issues. After fixing a loose RAM stick, I noticed that my CPU temperature is hitting around 90-94 degrees Celsius while idling, which seems way too high. Also, in the BIOS, the CPU fan status is showing N/A. I'm wondering if this could indicate a blockage in the AIO cooler or a malfunction with the fan. I don't believe it's a thermal paste issue since it was applied correctly.
2 Answers
First, check if your AIO pump is connected to the correct header on your motherboard and if it's set to run at 100% in the BIOS. If it's not, you might need to create a custom fan profile to ensure it's at max speed. Unfortunately, AIO pumps can fail, so it might just be a case of a dead pump. Try holding the pipe closest to the pump while your system is running; if you don't feel any vibration, it could mean the pump is dead and you'd need to replace the AIO.
Definitely check the connections first. If your pump was working fine before, it's worth ensuring everything is connected properly. Also, check the two pipes; one should be hot and the other cold. If they’re both warm or cold, it might indicate a problem with the AIO.
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