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‎04-22-2022 02:54 AM

HP Recommended
Product: HP Pavilion 15-n031sg Notebook PC
Operating System: Microsoft Windows 7 (64-bit)

Hello, 

the CPU fan on my laptop started working extremely loudly like it's dying, so I opened the laptop to clean the whole thing. Once I put everything back in place and turned it on, it started showing a 90b error, saying "The system has detected that a cooling fan is not operating correctly. The system will shutdown in 15 seconds...". Since the error didn't pop up before opening, while the fan was still working incorrectly, I thought it could be a glitch because of the opening of the laptop itself. After this I tried to reset my BIOS properties to system defaults, which caused the laptop to not recognize the drive. I now get an error 3F0, prompting me to install an operating system to my primary HDD, yet it isn't recognized in the Boot manager. Does anyone have an idea to a fix, or am I forced to buy a new HDD? I plan on changing out the CPU fan either way around.

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