64-bit Intel Xeon Processor with 2MB L2 Cache Thermal/Mechanical Design Guidelines

Processor Thermal Management Logic and Thermal Monitor Features
76 64-bit Intel® Xeon™ Processor with 2MB L2 Cache Thermal/Mechanical Design Guidelines
E.1.9 Cooling System Failure Warning
§If desired, the system may be designed to cool the maximum processor power. In this situation, it
may be useful to use the PROCHOT# signal as an indication of cooling system failure. Messages
could be sent to the system administrator to warn of the cooling failure, while the TCC would allow
the system to continue functioning or allow a graceful system shutdown. If no thermal management
action is taken, the silicon temperature may exceed the operating limits, causing THERMTRIP# to
activate and shut down the processor. Regardless of the system design requirements or thermal
solution ability, the Thermal Monitor feature must still be enabled to ensure proper processor
operation.
§