Functional Description
ATCA-F140 Series Installation and Use (6806800M67S)
95
4.4.1
Temperature Sensors
The on-board temperature sensors are implemented using National LM75 digital
temperature sensors. The following table provides the upper non-critical, critical and non-
recoverable temperature thresholds for each of the on-board temperature sensors.
Figure 4-2 IPMI Block Diagram
Table 4-1
Temperature Sensors
Device
Temperature Thresholds
Sensor Type
Non
Critical
Critical
Non
Recoverable
Air Inlet Component Side 1 45°C
55°C
72°C
LM75
BIX (BCM56334)
55°C
70°C
115°C
LM75
FIX (BCM56846)
55°C
70°C
110°C
On-die thermal diodes
Service Processor (P2020)
55°C
65°C
115°C
LM75
Stratum Clock Oscillator
50°C
55°C
85°C
LM75
