Please help me locate the fuses for an X570 Aorus Master computer motherboard?

[lightnb]

I have an X570 AORUS MASTER motherboard that worked for a while, but then one day when I shut down the computer, all the motherboard lights went out and it now has no standby power. I have already determined that it is the motherboard (not the PSU, etc) that is bad.

I think it might just be a blown fuse on the motherboard.

Could somebody help me locate where the fuses are on this board? In the attached image, are these the fuses circled in red, labeled P CK and P C2?



If so, how do I determine their value?

[wraper]

I think it might just be a blown fuse on the motherboard.

Well, dream about it. Fuses rarely fail just by themselves in low voltage electronic devices. And why didn't you just measure their resistance? Not to say those on the photo are resettable fuses. So they don't blow.

and it now has no standby power. I have already determined that it is the motherboard (not the PSU, etc) that is bad.

Why and how? What do you mean by standby power?

[wraper]

BTW this motherboard should have 3 year warranty and since this model was released in July 2019 it should be well within it.

[TheMG]

Those are self-resetting (polyfuse) fuses, and I doubt even if they were defective that they have anything to do with the motherboard not working. Such fuses are normally used on motherboards to protect from overload or short circuit on peripheral and accessory connectors, such as USB ports, fan headers, LED connectors, etc.

[Simon]

Oh Aorus, I won't be buying one of those again, utter junk and presumably the rest of Gigabyte with them. My last gigabyte motherboard failed after 2 years but only by failing to boot drives not a total shutdown.

Why do you not think the PSU has failed?

[Mr Evil]

There is a known problem with that board where it won't boot, which can be fixed by removing the battery. See https://hardforum.com/threads/gigabyte-x570-aorus-master-wont-power-on-temporary-solution.1993194/ That might not be the problem here, but it's an easy thing to try.

[Ranayna]

The position of those two fuses makes me assume that they are related to the RGB pinheaders directly next to them. That would make sense, because who knows what can get connected to those.

I have had some issues with an apparently dead AsRock Mainboard in the past. Removal of the BIOS Battery, setting the clear jumper, and waiting for at least half an hour revived the board again. I suspect some part of the initial power up circuitry went bonkers.