Supermicro 2027R-E1CR24L User Manual page 73

ME Recovery
Close Jumper JPME1 to use ME Firm-
ware Recovery mode, which will limit
system activities to support essential
functions only. There will be no power
use restrictions. In single operational
mode, online upgrade will be available
via the Recovery mode. See the table
on the right for jumper settings.
Manufacturer's Mode
Jumper JPME2 allows the user to
flash the system firmware from a
host server in order to modify system
settings. Close this jumper to bypass
SPI flash security, and force ME into
recovery mode in order to use recov-
ery jumpers. See the table on the right
for jumper settings.
Watch Dog Enable/Disable
Jumper JWD controls the Watch
Dog function. Watch Dog is a sys-
tem monitor that can reboot the
system when a software application
hangs. Jumping pins 1-2 will cause
WD to reset the system if an appli-
cation hangs. Jumping pins 2-3 will
generate a non-maskable interrupt
signal for the application that hangs.
See the table on the right for jumper
settings. Watch Dog must also be
enabled in BIOS.
Note: When enabled, the user
needs to write their own applica-
tion software in order to disable the
Watch Dog Timer.
Chapter 5: Advanced Serverboard Setup
Jumper Settings
Jumper Setting
Pins 1-2
Pins 2-3
Jumper Setting
Pins 1-2
Pins 2-3
Jumper Settings
Jumper Setting
Pins 1-2
Pins 2-3
Open
5-25
ME Recovery
Definition
Normal
ME Recovery
ME Mode Select
Jumper Settings
Definition
Normal
Manufacture's Mode
Watch Dog
Definition
Reset
NMI
Disabled