Manual for P4N series
Installation Instructions
Enable USB Device Wake-up Function (JFUSB/JUSB)
The mainboard provides the advanced USB device wake-up function. The system can be
waked up from its power saving including ACPI S3 by activating USB device. Before using
this function, set JFUSB/JUSB with pin1 & pin2 closed. Otherwise, set JFUSB/JUSB with
pin2 & pin3 closed for disabling. Furthermore, the item Wake-Up From S3 by USBin BIOS
setup should also be set corespondingly to enable or disable this function.
JUSB
JFUSB
JUSB JFUSB
1
2
3
1
2
3
Disable
Enable
(default)
1
2
3
1
2
3
JUSB JFUSB
BIOS Protection Jumper (JAV)
The BIOS of the mainboard is inside the FWH. If the jumper JAV is set as closed, you will
be unable to flash the BIOS to the mainboard. However in this status, the system BIOS is
protected from being attacked by serious virus such as CIH virus.
Flash Write Disabled
Flash Write Enabled
(default)
JAV
JAV
1
1
The mainboard provides the BootEasy function.If you want to use this function,Please
set the jumper JAV as open under PC will boot-up in normal way conditions. Refer to
the BootEasy introduction.
The DMI (Desktop Management Interface) system information such as the CPU type/speed,
memory size, and expansion cards will be detected by the onboard BIOS and stored in the
flash ROM. Whenever the system hardware configuration is changed, DMI information will
be updated automatically. However, setting jumper JAV as closed makes flashing BIOS and
updating DMI information impossible. Therefore, set JAV as open when changing the sys-
tem hardware configuration, or the error message Unknown Flash Type will be displayed
on the screen, and DMI information update will be fail.
