Won't boot unless CMOS is cleared

[Carnage]

Hi guys

My rig is unable to boot up unless CMOS is cleared first i.e. I need to press the button at the back of the motherboard in order boot up or else nothing powers on.

Any idea what's happening?

I just changed my PSU.

 

[Rashkae]

Try replacing the Button battery on the motherboard

 

[Carnage]

You mean the CMOS battery?

 

[jtjt00]

You mean the CMOS battery?

Based on your profile rig, your mobo is more than 3 years old and CMOS battery is likely flat.

 

[Rashkae]

You mean the CMOS battery?

Yup. Every 7-11 and NTUC carries those batteries. Cheap cheap.