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FatTwin AS -F1114S-FT User's Manual
Chapter 4
Motherboard Connections
This section describes the connections on the motherboard and provides pinout definitions.
Note that depending on how the system is configured, not all connections are required. The
LEDs on the motherboard are also described here. A severboard layout indicating component
locations may be found in Chapter 1.
Please review the Safety Precautions in Chapter 3 before installing or removing components.
4.1 Power Connections
PB_MISC Power Connector
Pin Definitions
Pin#
Definition
Pin#
Definition
1
VRM SCL
2
PMBUS SDA
3
VRM SDA
4
PMBUS SCL
5
P12V stby PWRGD
6
P12V_PWRGD
7
P12V_STBY_PG
8
PS_ON
9
PMBUS_ALERT
10
P12V_FAULT
11
12
GND
13
P12 standby
14
GND
15
P12V standby
16
GND
17
P12V standby
18
GND
19
P12V standby
20
GND
PB_MISC Power Connector
The PB_MISC connector provides power for various functions as noted in the pin definition
table below.
PB_PWR1, PB_PWR2 Power Connector
Pin Definitions
Pins
Definition
1 through 4
Ground
5 through 8
+12V
PB_PWR1, PB_PWR2 Power Connectors
These connections provide power to the power distribution board. Refer to the table below
for pin definitions.
