User Guide
1. Overview
1.3 Electrical Specifications
The System Thermal Algorithm contains minimum and maximum thresholds related to the ambient
temperature of the system. The system is designed to maintain a maximum ambient temperature of 35°C.
Exceeding 35°C may result in damage to the hardware and potentially void the product warranty. These
thresholds allow for the best possible operating conditions. If the system goes outside of the minimum or
maximum threshold window, the BMC will adjust the fan speed to accommodate the issue and a fault will
be reported. The following table lists the Thermal Algorithm Thresholds along with the related fault levels
and threshold values.
The following table lists the different severity of thermal algorithm critical faults that are reported to the
user.
Table 2:
Thermal Algorithm Critical Faults
Component
Critical Faults
Device
Any sensor >= critical
Not installed FAN
Not installed PSU
Not installed Device or Blank
BMC
Not installed BMC
Any sensor >= critical
PSU
Any critical status on SMBus
The following table lists the device decision values that the system chooses from during operation. It
describes how the pulse width modulation (PWM) of the power that is being distributed to the cooling
fans reacts to different fault types.The fault will be reported based on the severity of the thermal issue.
Table 3:
Thermal Algorithm Device Decision for Fan Control
Fault
Sensor Value
Fan Response
Critical
Sensor >= Critical
100% PWM
Increase
Sensor >= Max
PWM + increase step
Decrease
Sensor <= Min
PWM - decrease step
No Change
Min < Sensor < Max
Hold PWM
1.3
Electrical Specifications
Table 4:
Electrical Specifications
Specification
Value
Max Power Consumption
1600W
Typical Power Consumption
~1400W
Input Voltage
200V - 240V
PSU Connector Type
C16
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