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HP Recommended
HP EliteDesk 800 G2 Base Model Tower PC
Microsoft Windows 11

CPU start directly after Main switch is  ON( without turning CPU power ON), there is no display and Fan speed up to max (Loud fan running sound)  within 40s. 

This happen suddenly while i was working on it, 

 

Following Step was tried:- 

Replaced CMOS battery,

Cleaned RAM, 

re-connected all wires, 

 

but still same issue.

please help

 

 

 

 

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