IBM 88743BU - System x3950 E User Manual page 113

Planning, installing, and managing
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Important: Any installation and removal of processors or VRM can result in
damage if the system is not removed from the AC power source. Check that
the system is without power after removal of the power cables.
The blue locator LED is located on the rear side of the server. This LED
indicates whether AC power is connected to the system but the system is
powered off. The LED remains lit for up to 20 seconds after you remove the
power cords. Use this as a guide as to when you can start working in a
system. After the blue LED is off you can be sure that all components are
without power.
4. Remove the server bezel and the cover.
5. Loosen the captive screws and rotate the media hood to the fully open
position.
Captive
screws
Figure 3-3 x3850 M2 and x3950 M2 with fully opened media hood
6. Review the installation instructions included in the processor option kit.
7. Install the processors in the order shown in Figure 3-1 on page 90.
Chapter 3. Hardware configuration
95

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