User Manual

ICE Module
Page 92
5.4.2 ATX Power Diagram
ATX Power
Source
COM-Express
Module
LD
O
+3.3VSB
+12V
+5VSB
Battery(3.3V)
+5V
+3.3V
-12V
-5V
Figure 5-3: ATX Power Delivery Block Diagram
6.3.3 ATX Power On Timing
T0 T1 T2 T3 T4 T5 T6 T7 T8
+VBAT(3.3V)
+V5SB
PWR_BTN#
SUS_S3#
PS_ON#
+V12
+V5,+V3.3
ICE Power Rail
CB_RESET#
PCI_RESET#
BIOS Starts
Figure 5-4: ATX Power On Sequence