5800x started to overheat

[Kins]

Had my system running for about 14 months now, this morning temperatures are shooting up till I get auto shutdown. If I run just in bios, from a cool start, temps rise steadily till temp warning and shutdown.

Takes approx 2 to 3 minutes to go from cool start (40/50 degrees) to shutdown.

Nothing has changed in comp in 14 months.

X5800
MSI X570 Tomahawk
Raijintek Rainbow AIO Cooler

System temp is 25 degrees and chipset 28 degrees

The cooler hasn't shifted, all fans still working, cold intake feels cool, outtake feels warm but not overly so.

I suspect chip has a fault but any ideas. I am in the middle of moving so really don't need the hassle of RMA right now.

 

[Kins]

Just tried replacing thermal paste. No change. On bios idle, temps just keep on marching up till temp alarm.

Don't get why the out cooler pipe wouldn't be hotter though if its not pumping. Shouldn't it be heated from the heat sink connection up? First AIO so just going from normal water pumps.

Ok, thanks guys. Guess have to RMA the cooler.

 

[Kins]

Thanks guys, RMA'd now.