Cisco UCS C250, Инструкция по установке и обслуживанию

Страница: 33 / 92

2-15
Cisco UCS C250 Server Installation and Service Guide
OL-20888-02
Chapter 2 Installing the Server
System BIOS and CIMC Firmware
Using a BIOS Recovery Jumper on Header P35
This jumper is adjacent to the CMOS battery (see Figure 2-5 on page 2-14 ). You can use this jumper to
force the server to flash a new BIOS, in the case of a system hang. For example, if the system hangs after
a BIOS update, use this procedure to force the server to look for the new firmware.
Step 1
Download the BIOS update package and extract it to a temporary location.
Step 2 Copy the contents of the extracted UEFI folder to the root directory a USB thumb drive.
Step 3
Power off the server as described in the “Shutting Down and Powering Off the Server” section on
page 3-9 .
Step 4 Disconnect all power cords from the power supplies.
Step 5
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 6 Remove the top cover as described in the “Removing and Replacing the Server Top Cover” section on
page 3-10 .
Step 7
Remove the clear air baffle that covers the motherboard. Loosen the six thumbscrews, and then lift the
baffle up and out of the server.
Step 8 Install a shorting jumper on pins 3 and 4 of the P35 header (see Figure 2-5 on page 2-14 ).
Step 9
Reinstall the top cover and reconnect AC power cords to the server. The server powers up to standby
power mode, indicated when the Power LED on the front panel is amber.
Step 10 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 BIOS recovery.
This is because the state of the jumper cannot be determined without the host CPU running.
Step 11 Press the Power button to shut down the server to standby power mode, and then remove AC power cords
from the server to remove all power.
Step 12
Remove the top cover from the server.
Step 13 Remove the shorting jumper from the header pins.
Note If you do not remove the jumper, the password is cleared every time you power-cycle the server.
Step 14 Reinstall the air baffle and the top cover.
Step 15
Replace the server in the rack, replace power cords and any other cables, then power on the server by
pressing the
Power button.