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3.4 CPU Fan
Operation in high environmental temperatures may require a CPU fan. The fan connector is located next to the bottom
right corner of the Q7 expansion area (see board overview).
.
FAN_T
ACHON
+12V GND
FAN_PWMOUT
Fig. 3.3: Fan connector
Note:
The fan is only necessary in high ambient temperatures. Under normal conditions, the RK3399 Q7 operates passively
cooled.
3.5 Booting from SD Card
For information on preparing an SD card for the RK3399 Q7 board, have a look at the :ref:
Software Guide
. On power up,
RK3399-Q7 module will normally try to boot from the internal flash. If this fails, it will attempt to boot from the SD card.
If this fails as well, it will go into USB recovery mode. The standard boot order of the RK3399-Q7 is
1. SPI
2. eMMC
3. SD-Card
4. USB Recovery
Release v0.2-3-g574c114
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Содержание RK3399-Q7
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