2-16
Cisco UCS C460 Server Installation and Service Guide
OL-22326-01
Chapter 2 Installing the Server
Motherboard Jumpers for Clearing BIOS Settings
Using a Clear BIOS Admin Password Jumper on Header J5C3
The J5C3 jumper is a 3-pin header on the motherboard (see Figure 2-6 on page 2-14). This procedure
describes how to clear the Admin password for the BIOS back to the default in case the user-selected
password is lost of forgotten.
Step 1 Power off the server as described in the “Shutting Down and Powering Off the Server” section on
page 3-6.
Step 2 Slide the server out the front of the rack far enough so that you can remove the top cover. You might
have to detach cables from the rear panel to provide clearance.
Caution If you cannot safely view and access the component, remove the server from the rack.
Step 3 Remove the top cover as described in the “Removing and Replacing the Server Top Cover” section on
page 3-7.
Step 4 Move the shorting jumper to pins 2 and 3 of the J5C3 header (see Figure 2-6 on page 2-14).
Step 5 Replace the top cover.
Step 6 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 You must allow the entire server to reboot to main power mode to complete the password reset.
This is because the state of the jumper cannot be determined without the host CPU running. The
password is then cleared.
Step 7 Press the Power button to shut down the server to standby power mode.
Step 8 Remove the top cover from the server.
Step 9 Replace the jumper to the default pins 1 and 2 on the J5C3 header.
Note If you do not remove the jumper, the password is cleared every time you power-cycle the server.
Step 10 Replace the top cover.
Step 11 Replace the server in the rack, replace cables, and then power on the server by pressing the Power
button.
To Next Page
Loading...
Need help?
General