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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.
MH1
BT1
MH4
JMB_E1
BATTERY
CPU2
J23
J24
J21
J22
J19
J20
J14
J13
JPME1
JTPM1
MH20
MH21
FAN1
BMC
JSDCARD1
BIOS LICENSE
SD CARD
LED2
M.2-P1
JM2-1
MH10
DA6
HDD0
DA4
JLAN1
JUSBRJ45
JVGA
IPMI_LAN
LAN1/LAN2
USB1/2(3.0)
VGA
MH2
JMB_E5
JMB_E6
JMB_E4
JMB_E2
JMB_E3
CPU1
J16
J15
J18
J17
J11
J12
J9
J10
J7
J8
1
JBT1:CMOS CLEAR
JBT1
MH24
PCH
MH25
MH9
X11DPG-HGX2
REV:1.01
DESIGNED IN USA
LED1
M.2-P2
JM2-2
MH12
MH11
DA11
DA13
HDD2
HDD1
DA10
DA12
53
MH3
1. JBT1 (CMOS Clear)
J2
J1
J4
J3
J6
J5
FAN3
BAR CODE
MAC CODE
MH7
SAN MAC
IPMI CODE
MH8
Chapter 2: Installation
JBT1 contact pads
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