User's Manual l TQMxE39S UM 0101 l © 2019 TQ-Group
Page 7
3.2.2
Power Consumption
The values below show voltage and power consumption details for the TQMxE39S.
The values were measured using the TQMxE39S and the MB-SMARC-1 carrier board.
The measurement was done with two power supplies, one for the TQMxE39S and the other one for the MB-SMARC-1 carrier
board.
The power consumption of each TQMxE39S was measured running Windows
®
10, 64 bit and a four chip LPDDR4 configuration (4
× 2 Gbyte). All measurements were done at a temperature of +25 °C and an input voltage of +5.0 V.
The power consumption of the TQMxE39S depends on the application, the mode of operation and the operating system.
The power consumption was measured under the following conditions:
•
Suspend mode:
The system is in S5/S4 state, Ethernet port is disconnected.
•
Windows 10, 64 bit, idle:
Desktop idles, Ethernet port is disconnected.
•
Windows 10, 64 bit, maximum load:
These values show the maximum worst case power consumption, achieved by using the Intel
®
stress test tool to apply
maximum load to the cores only, and cores plus graphics engine, Ethernet port is connected (1000 Mbps Speed)
•
Windows 10, 64 bit, Suspend Mode:
The system is in S5/S4 state, Ethernet port is disconnected.
The following table shows the power consumption with different CPU configurations.
Table 3:
TQMxE39S Power Consumption
Mode
Module
Suspend (OS shut down)
Win10, 64 bit idle
Win10, 64 bit max. load
Intel
®
Pentium
®
N4200
0.33 W
2 W
TBD
Intel
®
Celeron
®
N3350
0.33 W
2 W
TBD
E3930 with 8 Gbyte LPDDR4
0.33 W
2 W
8 W
E3940 with 8 Gbyte LPDDR4
0.33 W
2 W
11.5 W
E3950 with 8 Gbyte LPDDR4
0.33 W
2 W
16 W
Note: Power requirement
The power supplies on the carrier board for the TQMxE39S must be designed with enough reserve.
The carrier board should provide at least twice the maximum workload power of the TQMxE39S.
The TQMxE39S supports several low-power states. The power supply of the carrier board has to be
stable even with no load.
