Question Screen off, but smps fan speeding ?

Sep 21, 2021
This morning , as usual I switched on my apc UPS then the PC but instead of starting this is what happened:

1. monitor was not showing anything, it was on with its power indicating light on

2. after waiting for 5 minutes the smps fan started to speed like a jet.

I got afraid of it catching fire , so I turned off the PC by long pressing PC power button.

I removed all ram sticks and cleaned it and then again fixed it and after 2 minutes I tried again but the same happened , so now I called my father to my room the look at the problem , but this time as I was starting the PC ,it worked.

I also want to tell that after I started , I checked cpu temperature , hard drive health and ram but they are all fit and fine.

Temperatures info:

Adapter: ACPI interface
temp1: +27.8°C (crit = +105.0°C)
temp2: +29.8°C (crit = +105.0°C)

Adapter: ISA adapter
Package id 0: +56.0°C (high = +93.0°C, crit = +103.0°C)
Core 0: +56.0°C (high = +93.0°C, crit = +103.0°C)
Core 1: +56.0°C (high = +93.0°C, crit = +103.0°C)
Core 2: +55.0°C (high = +93.0°C, crit = +103.0°C)
Core 3: +53.0°C (high = +93.0°C, crit = +103.0°C)

Thanks in Advance