Specifications
JXT6966 / JXTS6966 Technical Reference
CHASSIS PLANS
1-12
Configuration Jumpers
The setup of the configuration jumpers on the SHB is described below. * indicates the default value of each
jumper.
NOTE:
For the three-position JU12 jumper, "RIGHT" is toward the I/O bracket side of the board; "LEFT"
is toward the CPU1 DDR3 Memory sockets.
Jumper
Description
JU1
SPI Update
(two position jumper)
I
nstall for one power-up cycle to enable the board to unprotect the SHB’s SPI storage
device.
Remove for normal operation. *
CAUTION:
Installing this jumper is only done for special board operations such as
changing the PCI Express link bifurcation operation. Contact Chassis Plans tech
support
before
installing this jumper to prevent any unintended system operation.
JU8
Password Clear
(two position jumper)
Install for one power-up cycle to reset the password to the default (null password).
Remove for normal operation. *
JU12
CMOS Clear
(three position jumper)
Install on the LEFT to clear.
Install on the RIGHT to operate. *
NOTE:
To clear the CMOS, power down the system and install the jumper on the
TOP. Wait for at least two seconds, move the jumper back to the BOTTOM and turn
the power on. When AMIBIOS displays the "CMOS Settings Wrong" message, press
F1 to go into the BIOS Setup Utility, where you may reenter your desired BIOS
settings, load optimal defaults or load failsafe defaults.
