Usb Wake-Up; Watch Dog Enable/Disable; Front Side Bus Speed - Supermicro P4SCE User Manual

USB Wake-Up (*USB1/2
Only)
Use JPUSB1 to enable or disable
USB Wake-Up, which allows you
to wakeup the system by pressing
a key on the keyboard or by click-
ing the mouse when either is con-
nected to the USB1 or USB2 port.
Enable the jumper a to allow the
system to be woken up from S1
and S3 in Windows OS. See the
table on the right for jumper set-
tings.

Watch Dog Enable/Disable

JP8 enables controls the Watch
Dog function. Watch Dog is a sys-
tem monitor that takes action
when a software
freezes the system. Close pins 1-
2 to reset the system if a program
freezes. Close pins 2-3 to gener-
ate a non-maskable interrupt for
the program that has frozen. See
the table on the right for jumper
settings. Watch Dog must also be
enabled in BIOS. (*Note, when the
function of Watch Dog is enabled,
the user needs to write his own
application software in order to
disable the Watch Dog Timer.)

Front Side Bus Speed

JP1, JP2 are used to set the sys-
tem (front side) bus speed for the
processors. It is best to keep this
jumper set to Auto. This jumper is
used together with the CPU Clock
setting in BIOS. See the table on
the right for jumper settings.
application
Auto
100 MHz (x4)
133 MHz (x4)
Reserved
200 MHz (x4)
2-13
Chapter 2: Installation

USB Wake-Up

Jumper Settings (JPUSB1)
Jumper
Position
Definition
1-2
Disabled
2-3
Enabled
Watch Dog
Jumper Settings (JP8)
Jumper
Position Definition
Pins 1-2 WD to Reset
Pins 2-3 WD to NMI
Open Disabled
JP1
1-2
2-3
NC
NC
2-3
JP2
1-2
2-3
2-3
NC
NC