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Chapter 2
Enable Front/Back Panel USB Device Wake-up Function (JFUSB/JUSB)
(optional)
The mainboard provides the advanced USB device wake-up function. The system
can be waked up from its power saving status 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 USB" in Power Management Setup should also be set correspondingly
to enable or disable this function.
BIOS-Protection Jumper (BIOS_WP)
The BIOS of the mainboard is inside the FWH. If the jumper BIOS_WP is set as
closed, the system BIOS is protected from being attacked by serious virus such as
CIH virus, you will be unable to flash the BIOS to the mainboard in this status.
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 BIOS_WP as closed
makes flashing BIOS and updating DMI information impossible. Therefore, set BIOS_WP
as open when changing the system hardware configuration, or the error message " Un-
known Flash Type" will be displayed on the screen, and DMI information may not be
updated.
JUSB
1 2 3
Disable
1
JFUSB
2
3
Disable
Flash Write
BIOS_WP
Disabled
Flash Write
Enabled
15
1 2 3
Enable
1
2
3
Enable
P4I848P Pro
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