I have a HP Pavilion Entertainment PC with an error message that reads
The System BIOs had detected a possible issue with the cooling fan.
The cooling fan is an important part of a Notebook PC. Operation of a notebook PC for an extended period of time without the cooling fan may result in permanent damage to the notebook PC.
Cooling Fan (902)
Enter - Shutdown
For more information, please visit: www.hp.com/go/techcenter/startup