Using The Clear Cmos Jumper J1E6 - Cisco UCS C210 Installation And Service Manual

Configuring BIOS Settings and Updating BIOS Firmware
S e n d d o c u m e n t c o m m e n t s t o u c s - d o c f e e d b a c k @ c i s c o . c o m

Using the Clear CMOS Jumper J1E6

You can use this jumper (see
a system hang. For example, if the server hangs because of incorrect settings and does not boot, use this
jumper to invalidate the settings and reboot with defaults.
Power off the server as described in the
Step 1
page
Disconnect all power cords from the power supplies.
Step 2
Slide the server out the front of the rack far enough so that you can remove the top cover. You might have
Step 3
to detach cables from the rear panel to provide clearance.
Caution
Remove the top cover as described in the
Step 4
page
Move the shorting jumper to pins 2 and 3 of the J1E6 header (see
Step 5
Reinstall the top cover and reconnect AC power cords to the server. The server powers up to standby
Step 6
power mode, indicated when the Power LED on the front panel is amber.
Return the server to main power mode by pressing the Power button on the front panel. The server is in
Step 7
main power mode when the Power LED is green.
Note
Press the Power button to shut down the server to standby power mode, and then remove AC power cords
Step 8
from the server to remove all power.
Remove the top cover from the server.
Step 9
Remove the shorting jumper from the J1E6 header pins.
Step 10
Note
Replace the top cover, replace the server in the rack, replace power cords and any other cables, then
Step 11
power on the server by pressing the Power button.
Cisco UCS C210 Server Installation and Service Guide
2-22
Figure 2-5 on page
3-7.
If you cannot safely view and access the component, remove the server from the rack.
3-9.
You must allow the entire server, not just the service processor, to reboot to main power mode
to complete the reset. This is because the state of the J1E6 jumper cannot be determined without
the host CPU running.
If you do not remove the J1E6 jumper, the CMOS settings are reset to the default every time that
you power-cycle the server.
2-20) to clear the server's CMOS settings in the case of
"Shutting Down and Powering Off the Server" section on
"Removing and Replacing the Server Top Cover" section on
Figure 2-5 on page
Chapter 2 Installing the Server
2-20).
OL-20887-02