QDI B1S/2000, Manual

Page: 28 / 63

Manual BrillianX 1S/2000
Note: 1.If wanting to use this function, 5VSB line of the power supply should be
capable of delivering enough current (eg. 200mA) for all the devices con
nected to the keyboard port, or you can’t power up the system using the
keyboard.
2.If you set JP2 with pin2&pin3 closed, set “POWER ON Function” to
BUTTON ONLY, don’t set it to Password, or this will prevent you from
powering up your system.
3. If you encounter problems above, clear CMOS and set the jumper and
BIOS option properly again.
chapter 2
25
BIOS Write Protection Jumper (JAV)
The BIOS of the mainboard is contained inside the Flash ROM. If the jumper JAV is set as
closed, you will be unabled 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.
JAV
JAV
Flash Write Disabled
Flash Write Enabled
Setting the jumper JAV as Opened(default), meanwhile disabling the “ Flash Write Protect” item
from “BIOS Features Setup” in AWARD BIOS CMOS Setup, allows you to flash the BIOS to the
Flash ROM.
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 opened when changing the
system hardware configuration, or the error message “ Unkown Flash Type” will be dis-
played on the screen, and DMI information update will be fail.
Refer to page 35 for related BIOS setting.