I have a user with the Dell precision T5400 workstationthat gives a warning every morning when he first boots up. The message is "System Thermo Solution Compromised. When he gets this message all of the fans start running at max speed.the user then proceeds to report about four times in the fans will run more quietly. The workstation is okay for the rest of the day after this. I opened the case and gotten rid of excess dust and look for any obstructions. I also checked to see if the plunger switch would have any obstructions that would not permit it to be pushed in all the way. There is no dent on the side of the case. Is there something that can be done to correct the situation? Is the switch faulty?