<human>: my PC was making some mad grinding noises for the past three days. at first i thought it was one of my internal harddrives. i disconnected them and isolated my CPU fan. i have just come home and my PC wouldn't boot because my CPU fan wasn't turning on. i opened the case and noticed it was turning but really slow like it might have been obstructed. i removed and disassembled the CPU fan and cleaned it up, but it still didn't spin smoothly. i turn to my trusty WD-40 and gave it one tiny squirt. let it sit and seep in. after i cleaned it up the fan is spinning nice and smooth. now that my PC is booted up will the WD-40 simply evaporate over time with the heat or will it burst into flames once the temp rises after starting a game?

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<bot>: CPU heat sink fan was struggling to spin round. disassembled fan and resolved spin issue with wd-40. what happens next? will it catch on fire? or simply evaporate will little to no harm to my PC?