KBox A-203-sXAL4 – User Guide Preliminary Rev. 0.2
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5/
Power and Thermal Considerations
5.1.
System Power Portfolio
Below information gives more insight on the power portfolio of KBOX A-203-sXAL4:
Input Voltage Nominal 24 VDC (+20% / -15%)
Please find in below tables values to calculate the total needed power for the 24 Volt power supply depending on the
application. Be aware that the DC power supply must be able to handle peak currents for several seconds.
Table 1: Power Consumption
Power Consumption
SMARC
USB 3.0
MiniPCIe
Sata SSD
CPU
TDP
2 Conn.
2 Slot
2 Pcs.
Intel® Atom™ x5-
E3930
6.5W
0-10 W
0-8 W
0-10 W
Intel® Atom™ x7-
E3950
12W
0-10 W
0-8 W
0-10 W
5.2.
Tuning CPU Power and Performance
There are BIOS settings that can help to limit the power consumption, peak current and thermal heat dissipation.
5.3.
Available Processors
Table 2: Overview of some of the features of the used CPU versions in KBOX A-203-sXAL4
CPU
Core/Thread
Processor Base
Freq
Burst Freq.
Graphics GPU
Intel® Atom™ x5-E3930
2/2
1.3 GHz
1.8 GHz
UHD 500
Intel® Atom™ x7-E3950
4/4
1.6 GHz
2.0 GHz
UHD 505
5.4.
Convection Cooling
The KBox A-203-sXAL4 is designed for convection cooling within the specified ambient air temperature ranges.
Therefore it is imperative that air flow to and from the unit is guaranteed.
In addition, implementers must empirically verify the cooling concept for the KBox A-203-sXAL4 including optionally
installed devices prior implementing the unit in the intended application.
5.5.
Minimum System Clearance
To provide a maximum of airflow through and around the box, minimum distances to surrounding parts must be
observed. Please refer to the chapter 6.1 “System Mounting” and Figure 18 “Restricted area for mounting around KBox
A-203-sXAL4 (desktop side view with antenna)”.