SZ DJS Co.,Ltd.
Q
1、No respond: press the power button computer does not respond.
A
The power indicator is off and the fan is not rotating:

Solution: 

A. By replacing the tested power ,confirm whether the machine is turned on;

B. By replacing the tested motherboard,confirm whether the machine is turned on .
 The power indicator is on, the fan is rotating, and the screen is not displayed:
 
Solution: 

A.Confirm whether the connection of the cable or the cable itself is OK, reconnect or replace the cable to confirm whether the machine is turned on;

B. By replacing the tested card (with a separate graphics card).confirm whether the machine is turned on. 

C. By replacing the tested memory,and confirm whether the machine is turned on .

D. By replacing the tested CPU,and confirm whether the machine is turned on .

E. By replacing the tested motherboard ,and confirm whether the machine is turned on.

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