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‎08-21-2023 05:38 AM

HP Recommended

Hello

 

I bought some used HP Pro Desk 490 MT Business PC. I installed WIn 11 and everything was working.

After opening it, cleaning  and changing CPU thermal paste the PC wouldn't start.

I was getting beep signals 3 long 2 short, what as I read indicate to be RAM problem.

After cleaning RAMs and their slots I got rid of the beeping single.

But now I'm not getting any signal on my monitor and fan goes louder and louder.

 

I also tried:

- change power and VGA cabel

- remove motherboard battery and hold power button for few seconds

- press the CMOS button for 10 seconds

 

When I plug power cabel, PC also power it's self.

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