4 - 4
4 - 4
4 - 4
4 - 4
4 - 4
C h a p t e r 4 : M o t h e r b o a r d i n f o
C h a p t e r 4 : M o t h e r b o a r d i n f o
C h a p t e r 4 : M o t h e r b o a r d i n f o
C h a p t e r 4 : M o t h e r b o a r d i n f o
C h a p t e r 4 : M o t h e r b o a r d i n f o
•
The USB device wake-up feature requires a power supply that can
provide 500 mA 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 .
2 .
2 .
2 .
2 .
U S B d e v i c e w a k e - u p ( 3 - p i n U S B P W R 1 2 , U S B P W R 3 4 )
U S B d e v i c e w a k e - u p ( 3 - p i n U S B P W R 1 2 , U S B P W R 3 4 )
U S B d e v i c e w a k e - u p ( 3 - p i n U S B P W R 1 2 , U S B P W R 3 4 )
U S B d e v i c e w a k e - u p ( 3 - p i n U S B P W R 1 2 , U S B P W R 3 4 )
U S B d e v i c e w a k e - u p ( 3 - p i n U S B P W R 1 2 , U S B P W R 3 4 )
The USBPWR12 and USBPWR34 jumpers are for the rear USB ports.
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).
®
USB device wake up
USBPW12
USBPW34
3
2
2
1
+5V
(Default)
+5VSB
®
1394 setting
1394SEL
Disable
(Default)
Enable
1
2
2
3
2 .
2 .
2 .
2 .
2 .
1 3 9 4 s e t t i n g ( 3 - p i n 1 3 9 4 S E L )
1 3 9 4 s e t t i n g ( 3 - p i n 1 3 9 4 S E L )
1 3 9 4 s e t t i n g ( 3 - p i n 1 3 9 4 S E L )
1 3 9 4 s e t t i n g ( 3 - p i n 1 3 9 4 S E L )
1 3 9 4 s e t t i n g ( 3 - p i n 1 3 9 4 S E L )
Keep the default setting (1-2) to enable support for IEEE 1394a
devices. To disable, move the jumper caps to pins 2-3.
