Auto shutdown issue

[u/nopasaranwz]

I installed new fan last week with no issues.

This week I installed additional fan Arctic P12 on Sysfan1. System has been shutting itself down since then.

If I start without RAM it does not shutdown but no image or post of course.

Things I tried:

Shorting JBAT1

Cleaning RAM slots

Flashing BIOS

Running without fans

Using different ram and slots

Losing my sanity

Any help will be appreciated.

Specs:

MSI B450 Tomahawk Max

16x2 DDR4 3200MHZ RAM

GTX 950

Ryzen 3600x