HP MSA 2040 SAN Storage - Manual (Page 66)

66 Troubleshooting
Temperature sensors
Extreme high and low temperatures can cause significant damage if they go unnoticed. Each controller
module has six temperature sensors. Of these, if the CPU or FPGA (Field Programmable Gate Array)
temperature reaches a shutdown value, the controller module is automatically shut down. Each power
supply has one temperature sensor.
When a temperature fault is reported, it must be remedied as quickly as possible to avoid system damage.
This can be done by warming or cooling the installation location.
When a power supply sensor goes out of range, the Fault/ID LED illuminates amber and an event is
logged to the event log.
Power supply module voltage sensors
Power supply voltage sensors ensure that the enclosure power supply voltage is within normal ranges.
There are three voltage sensors per power supply.
Table 23 Controller module temperature sensor descriptions
Description Normal operating
range
Warning operating
range
Critical operating
range
Shutdown values
CPU temperature 3°C–88°C 0°C–3°C,
88°C–90°C
> 90°C 0°C
100°C
FPGA temperature 3°C–97°C 0°C–3°C,
97°C–100°C
None 0°C
105°C
Onboard temperature 1 0°C–70°C None None None
Onboard temperature 2 0°C–70°C None None None
Onboard temperature 3
(Capacitor temperature)
0°C–70°C None None None
CM temperature 5°C–50°C ≤ 5°C,
≥ 50°C
≤ 0°C,
≥ 55°C
None
Table 24 Power supply temperature sensor descriptions
Description Normal operating range
Power Supply 1 temperature –10°C–80°C
Power Supply 2 temperature –10°C–80°C
Table 25 Voltage sensor descriptions
Sensor Event/Fault LED condition
Power supply 1 voltage, 12V < 11.00V
> 13.00V
Power supply 1 voltage, 5V < 4.00V
> 6.00V
Power supply 1 voltage, 3.3V < 3.00V
> 3.80V