Asus NCCH-DR User Manual

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C h a p t e r 2 : H a r d w a r e i n f o r m a t i o n

3 .

U S B d e v i c e w a k e - u p ( 3 - p i n U S B P W 1 2 , U S B P W 3 4 )

Set these jumpers to +5V to wake up the computer from S1 sleep
mode (CPU stopped, DRAM refreshed, system running in low power
mode) using the connected USB devices. Set to +5VSB to wake up
from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh,
power supply in reduced power mode).

•

The USB device wake-up feature requires a power supply that can
provide 500mA on the +5VSB lead for each USB port; otherwise, the
system would not power up.

•

The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.

2 .

C P U f a n p i n s e l e c t i o n ( 3 - p i n F M _ C P U 1 , F M _ C P U 2 )

C P U f a n p i n s e l e c t i o n ( 3 - p i n F M _ C P U 1 , F M _ C P U 2 )
These jumpers allow you to connect either a 3-pin or a 4-pin CPU fan
cable plug to the CPU fan connectors (CPU_FAN1, CPU_FAN2). Set
these jumpers to pins 1-2 if you are using a 3-pin fan cable plug, or to
pins 2-3 if you are using a 4-pin plug.

NCCH-DR

NCCH-DR FM_CPU Setting

FM_CPU2

DC mode

PWM

(Default)

2
1

FM_CPU1

DC mode

PWM

(Default)

1 2

2 3

NCCH-DR

NCCH-DR USB device wake-up

USBPW12

(Default)

+5V

+5VSB

1 2

2 3

USBPW34

(Default)

+5V

+5VSB

1 2

2 3