Cisco ucs c240 Installation Manual page 20

Service Headers and Jumpers
Using the Clear Password Header J2067
See
administrator password.
Power off the server as described in
Step 1
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
Step 4
Remove PCIe riser 1 and set it aside to provide clearance for accessing the header. See
Step 5
Riser, page
Step 6 Move the shorting jumper to pins 2 and 3 of the J2067 header (see
Reinstall the top cover and reconnect AC power cords to the server. The server powers up to standby
Step 7
power mode, indicated when the Power LED on the front panel is amber.
Step 8 Return the server to main power mode by pressing the Power button on the front panel. The server is in
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 9
from the server to remove all power.
Remove the top cover from the server.
Step 10
Move the shorting jumper from header pins 2 and 3, back to its default position on pins 1 and 2.
Step 11
Note
Replace PCIe riser 1 to its position. See
Step 12
Replace the top cover, replace the server in the rack, replace power cords and any other cables, then
Step 13
power on the server by pressing the Power button.
Cisco UCS C240 Server Installation and Service Guide
2-20
Figure 2-7 for the location of this header. You can jumper this header to clear the user-defined BIOS
If you cannot safely view and access the component, remove the server from the rack.
3-38. You do not have to remove any cards from the riser.
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 jumper cannot be determined without the
host CPU running.
If you do not move the jumper, the password is cleared every time that you power-cycle the
server.
Shutting Down and Powering Off the Server, page
Removing and Replacing the Server Top Cover, page
Replacing a PCIe Riser, page
Chapter 2 Installing the Server
3-7.
3-8.
Replacing a PCIe
Figure 2-7).
3-38.
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