CER activity caused a timing error on h1seih454 and h1oaf0. Connection to IO-Chassis was not impacted, all models on these front end computers were restarted. h1oaf0 models were restarted twice, the first time I started it as the wrong user.
I checked the TCS Chillers on the mech room mezzanine to verify they are ok, which they are but EY's chiller water level looks low.