Main BIOS checksum error !

I had this same problem once when I had to keep pressing the On switch. My PSU failed, destroying my two DVD burners, and I immediately started getting BSODs that pointed to a corrupted BIOS. After I got a new PSU, I tried to clear the BIOS and update it, but my mobo maker's update software would not work because it already had the latest version. A new BIOS chip cost more than a new motherboard.

But i have recently bought a new psu and installed it , also the cmos battery is only 5 weeks old !!!!!

It is very possible that your old PSU damaged your BIOS chip.
A new PSU and a new battery will not repair a damaged BIOS chip.

so what to do ? Buy new mobo ??

Or a new BIOS chip.

brand ?

Shukla said:

But i have recently bought a new psu and installed it , also the cmos battery is only 5 weeks old !!!!!

Shukla, did you have your BIOS problem BEFORE or AFTER you bought a new PSU?

bobafetthotmail said:

I would try with a new PSU first. zebronics is not a good brand. And I fixed similar issues by replacing the PSU (and reflashing the bios afterwards).

Replacing bios chip depends from your motherboard. need to google "replace bios chip <motherboard model>" and see what results come up.

BobaFett, I'm getting the impression that Shukla is having problems after installing a new PSU.