Supermicro X11DPG-OT-CPU User Manual page 55

CMOS Clear
JBT1 is used to clear CMOS, which will also clear any passwords. Instead of pins, this jumper
consists of contact pads to prevent accidentally clearing the contents of CMOS.
To Clear CMOS
1. First power down the system and unplug the power cord(s).
2. Remove the cover of the chassis to access the motherboard.
3. Remove the onboard battery from the motherboard.
4. Short the CMOS pads with a metal object such as a small screwdriver for at least four
seconds.
5. Remove the screwdriver (or shorting device).
6. Replace the cover, reconnect the power cord(s), and power on the system.
Note: Clearing CMOS will also clear all passwords.
Do not use the PW_ON connector to clear CMOS.
LE1
JPME1
JPG1
J33
JPW19 JPW20
BIOS
LICENSE
CPU2
USB1/2 (3.0)
VGA
IPMI_LAN
LAN2 LAN1
USB3/4
(3.0)
LAN
CTRL
JSDCARD1
JM2-1
SD CARD
BMC
JP2
LEDM1
BIOS
LED1
J34 J32
J31
1
JBT1
PCH
JPW21
BT1
JS1 JS2
SATA0-3 SATA4-7
BATTERY
X11DPG-OT-CPU
REV:1.00
CPU1
55
Chapter 2: Installation
JBT1 contact pads
1. Clear CMOS
JPW22