Computer is randomly shutting down due to ASUS anti-surge protection

Could be a mobo issue as well caused by an issue with the psu did you try a bios update to see if tuere is some sort of glitch?

What happens when benchmark with say msi furmark? A gpu issue that causes it to lose power or an issue with the gpu will also cause your system to reboot.

It could be a power fluctation issue on that curcuit as well but hard to say without having some sort of smart ups or monitoring device to notify you of power related issues.that anything else acting funny?

Very odd i doubt its the gpu then if you aready swapped a new psu in it seems like its something with the mobo i would check for and update the bios if needed. any way you can test without the dedicated card for the heck of it? If not try a different pcie slot just to test.

Many will see the word surge. Due to hearsay and advertising, will immediately recommend a surge protector. That is junk science due to word association.

"Surge" can describe almost anything. Low voltage on AC mains, High current from a USB port, Low voltage and high current on startup. A ten thousand volt spike on low voltage wires. None of that is a surge reported by Asus.

Also ignore other wild speculation such as reflashing a BIOS (that works just fine on all other motherboards). Your error message said a computer assembler did not verify the 3.3, 5, and 12 volts using a digital multimeter. Therefore some part of a power system is defective. PSU is only one component of that system.

Fix things to learn some basic concept about life. Normal is for a completely defective something to 'appear' working properly. Your computer was delivered with an internal defect. And still booted OK - as is so common in life. Had the computer assembler verified numbers with a 3.5 digital meter, then the defect would have been obvious before delivery. But computer assemblers often know little about how electricity works.

Either let him keep replacing good parts until something works. Or ask for directions (for one minute of labor with a meter) to learn what is defective. Then have him replace that defective component the first time. Again, normal is for a completely defective part to make a computer work just fine for days.

Making an intermittent temporarily hard is another diagnostic procedure. Since many computer assemblers cannot see a failure that is intermittent; can only see it when a failure is hard. Heat selective components with a hairdryer on high. That is an ideal temperature for all electronics and how to find intermittents. A defective part is temporarily made obvious using heat. Unfortunately many computer assemblers see heat create crashes. Then assume heat is hardware destructive. Heat is a diagnostic tool to identify defective parts that cause intermittent crashes and failures.

But again, the Asus board has reported a completely defective internal component. Use heat or a digital meter to find that defect. Then tell the computer assembler what he must replace as 100% defective.