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‎01-07-2022 04:15 AM - edited ‎01-07-2022 04:17 AM

HP Recommended
Product: HP Prodesk 400 G1 MT
Operating System: Microsoft Windows 10 (64-bit)

getting 4 beeps plus red light on startup

Do you happen to know if the thermal sensor is removable, or is there a wire going into it that can be unplugged? Is it integrated into the motherboard?

it's power supply overload

replace the power supply SMPS  New one

fan spins up fast when powers on then stops

I hop you sold this problem 

 

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