Cisco UCS C240, Инструкция по установке и обслуживанию

Страница: 70 / 156

3-28
Cisco UCS C240 Server Installation and Service Guide
OL-25761-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
The LEDs light amber to indicate a faulty DIMM. To operate these LEDs from the SuperCap power
source, remove AC power cords and then press the Identification button. See also
Internal Diagnostic
LEDs, page 3-6 .
Replacing DIMMs
To install a DIMM assembly, follow these steps:
Step 1
Remove the DIMMs that you are replacing:
a.
Power off the server as described in the “Shutting Down and Powering Off the Server” section on
page 3-7 .
b.
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.
c.
Remove the top cover as described in “Removing and Replacing the Server Top Cover” section on
page 3-8 .
d.
Identify the faulty DIMM by observing the DIMM slot fault LEDs on the motherboard (see
Figure 3-3 ).
e.
Open the ejector levers at both ends of the DIMM slot, then lift the DIMM out of the slot.
Step 2
Install a new DIMM:
Note
Before installing DIMMs, refer to the population guidelines. See Memory Performance
Guidelines and Population Rules, page 3-24 .
a.
Align the new DIMM with the empty slot on the motherboard. Use the alignment key in the DIMM
slot to correctly orient the DIMM.
b.
Push down evenly on the top corners of the DIMM until it is fully seated and the ejector levers on
both ends lock into place.
c.
Replace the top cover.
d.
Replace the server in the rack, replace cables, and then power on the server by pressing the Power
button.