[SOLVED] HELP MY I7 is at 90° idle!!!

[Cracker_4K]

ive built my pc 2 Years ago and it was always running fine. I have an I7 9700 and a custom loop. when I started it up today the cpu just went to 90° and stayed there nomather what I did. has anybody an Idea?

 

[NightHawkRMX]

Make sure your pump is working.

How have you maintained your loop?

 

[Cracker_4K]

pump is working but ive never maintained it. but it was always fine.

 

[Phaaze88]

Maintenance should be done at least once a year on custom loops - more frequently if using those pastel coolants.
Loop is overdue for a flush and cleaning.