IEI Integration ROCKY-3786 v4.10 - Manual (Page 36)

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ROCKY-3786EV CPU Card
Page 36
3.2 Internal Peripheral Connectors
Internal peripheral connectors are found on the CPU card and are only accessible when
the CPU board is outside of the chassis. This section has complete descriptions of all the
internal, peripheral connectors on the ROCKY-3786EV CPU board.
3.2.1 ATX Power Connector
CN Label: CN21
CN Type: 20-pin header (2x10)
CN Location: See Figure 3-2
CN Pinouts: See Table 3-4
The ROCKY-3786EV can work without backplane, while attaching external power to this
ATX power connector. This connector supports the ATX power supply.
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
11 3.3V 1 3.3V
12 -12V 2 3.3V
13 GND 3 GND
14 PSON# 4 +5V
15 GND 5 GND
16 GND 6 +5V
17 GND 7 GND
18 -5V 8 Power good
19 +5V 9 +5VSB
20 +5V 10 +12V
Table 3-4: ATX Power Connector Pinouts