Cmos Clear; Bmc Reset - Supermicro SuperServer SYS-511R-ML User Manual

7.7 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
2. Remove the cover of the chassis to access the motherboard.
3. Remove the onboard battery
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 onboard battery and chassis cover, and reconnect the power cords, then
power on the system.
Notes: Clearing CMOS will also clear all passwords.
Do not use the PW_ON connector to clear CMOS.

7.8 BMC Reset

The BMC can be reset using the UID button.
•
Reset – Press and hold the UID button. After six seconds, the LED blinks at 2Hz. The
BMC resets and the reset duration is approximately 250 ms. Then the BMC starts to boot.
•
Restore factory default configuration – Hold the UID button for twelve seconds. The LED
blinks at 4Hz while defaults are configured. Note: All BMC settings including username
and password will be removed except the FRU and network settings.
Firmware update – When the BMC firmware is being updated, the UID LED blinks at 10Hz.
Event
Reset
Restore
Defaults
Update
the system completely.
from the motherboard.
BMC Reset Options
UID LED
Blue, Blinks at 2Hz
Blue, Blinks at 4Hz
Blue, Blinks at 10Hz
Chapter 7: Troubleshooting and Support
JBT1 contact pads
BMC Heartbeat LED
Green, solid
Off
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