Overclocking causes wierd clicking sound ?

E-AlRomaithi

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Jun 10, 2014
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This is the first time that i encounter this weird problem after PC BSODs with code CLOCK_WATCHDOG_TIMEOUT due to unstable overclock stress testing were I hear Clicking/Ticking (Like two marbles hitting) sounds coming from the (CPU + H100i) area. I am pretty sure that this sound didn't came from the HDD because HDDs are way down in the case while the sound is coming from the top side of the case. I've restarted my PC and the sound kept gradually decreasing and then increased after boot up. Then i decided to Shutdown and boot up again with no sound and everything ran smooth. Currently stress testing for almost 20 mins have passed with no issues. Should I be worried about this sound ? What could caused it ?

Note: Fans were and still on Full speed to reduce CPU temps.