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CMOS Clear
JBT1 is used to clear CMOS and 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.
COM
BAR CODE
IPMI CODE
MAC CODE
SAN MAC
CPU1
JGPW4
VGA
JLAN1
JLAN2
LEDM1
IPMI_LAN
USB2/3 (3.0)
LAN1
LAN2
LAN
CTRL
LED6
BT1
1
JPQAT2
JPQAT1
JTPM1
PCH
JUSBA1
BIOS
LICENSE
CN6
JGPW3
FAN4 FAN3
FAN5
59
Chapter 2: Installation
JBT1 contact pads
1. Clear CMOS
PSU2
PSU1
X11DSF-E
REV:1.01
JGPW1
CPU2
FAN2 FAN1
JGPW2
CPU2
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