Cisco UCS C240 Kurulum Kılavuzu - Sayfa 21

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Cisco UCS C240 Kurulum Kılavuzu
Chapter 2
Installing the Server

Using the Clear CMOS Header J2065

See
settings in the case of 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.
Clearing the CMOS removes any customized settings and might result in data loss. Make a note of any
Caution
necessary customized settings in the BIOS before you use this clear CMOS procedure.
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 J2065 header (see
Wait for 30 seconds.
Step 7
Move the shorting jumper from header pins 2 and 3, back to its default position on pins 1 and 2.
Step 8
Note
Replace PCIe riser 1 to its position. See
Step 9
Replace the top cover, replace the server in the rack, replace power cords and any other cables, then
Step 10
power on the server by pressing the Power button.
OL-25761-01
Figure 2-7
for the location of this header. You can jumper this header to clear the server's CMOS
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.
If you do not move the jumper, the CMOS settings are reset to the default 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
Cisco UCS C240 Server Installation and Service Guide
Service Headers and Jumpers
3-7.
3-8.
Replacing a PCIe
Figure
2-7).
3-38.
2-21