Question Coolermaster mwe 450watt

[aryan.somugupta]

Since last 4 days psu is not working .. but its working through ups connection but not on direct board connection..

 

[Ralston18]

More information needed:

Clarify what is working; what do you mean by "direct board connection"?

Wall outlet <---> UPS < ----> PSU [PSU works.]

Wall outlet <---> PSU [PSU does not work.]

And it was working up until 4 days ago - correct?

What voltage is your home electrical service?

Update your post to include full system hardware specs and OS.

Also:

PSU: make, model, wattage, age, condition?

UPS: make, model, age, condition?