Q7-974
Q7-974 User Manual - Rev. First Edition: 0.1 - Last Edition: 2.3 - Author: S.B. - Reviewed by G.G. Copyright © 2017 SECO S.r.l.
17
2.3.2
Power Consumption
Q7-974 module, like all Qseven
®
modules, needs a carrier board for its normal working. All connections with the external world come through this carrier board,
which provide also the required voltage to the board, deriving it from its power supply source.
Anyway, power consumption has been measured on +5V_S power rail that supplies the board. For this reason, the values indicated in the table below are real
average power consumptions of the board, and are independent from those of the peripherals connected to the Carrier Board.
Power consumption in Suspend and Soft-Off States have been measured on +5V_A power rail. RTC power consumption has been measured on carrier board
’
s
backup battery when the system is not powered.
The current consumptions, written in the table of this page, have been measured using the following setups:
Intel
®
Atom E3845 SoC, 4GB DDR3L, 16GB SSD soldered onboard
Intel
®
Celeron
®
N2807 SoC, 2GB DDR3L, 32GB SSD soldered onboard
Intel
®
Celeron
®
J1900 SoC, 4GB DDR3L, no SSD soldered onboard
O.S. Windows 7 ultimate SP1
Bios Release 1.09
USB mouse and keyboard connected
HDMI display connected.
Status
SoC
E3845
N2807
J1900
Idle, power saving configuration
625 mA
863 mA
548 mA
OS Boot, power saving configuration
683 mA
875 mA
680 mA
Video reproduction@720p, power saving configuration
795 mA
982 mA
745 mA
Video reproduction@1080p, power saving configuration
1020 mA
1060 mA
870 mA
3DMarkVantage benchmark, power saving configuration
1480 mA
1590 mA
1477 mA
3DMarkVantage benchmark, maximum performance
2062 mA
2013 mA
2050mA
Suspend to RAM (typical)
58 mA
Soft Off (typical)
25 mA
RTC Power consumption (typical)
2,5
μ
A
2,5
μ
A
2,5
μ
A
