Lenovo 5468 Setup Manual page 37

CAUTION:
The power control button on the device and the power switch on the power supply do not turn off the
electrical current that is supplied to the device. The device also might have more than one power
cord. To remove all electrical current from the device, ensure that all power cords are disconnected
from the power source.
Before you remove a DWC tray from the enclosure:
1. Read the following section(s) to ensure that you work safely.
• "Installation Guidelines" on page 30
2. Turn off the corresponding DWC tray that you are going to perform the task on.
Complete the following steps to remove a DWC tray from the enclosure.
Watch the procedure. A video of the installation process is available:
• Youtube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-BHNs9o9uS9u93aeU5BCI8I
• Youku:
http://list.youku.com/albumlist/show/id_51372950.html
Step 1. Rotate the release latches as shown in the illustration. The DWC tray moves out of the tray bay
approximately 0.6 cm (0.25 inch).
Figure 16. DWC tray removal
Attention:
• To maintain proper system cooling, do not operate the NeXtScale n1200 DWC Enclosure Type
5468 without a DWC tray or tray bay filler installed in each tray bay.
• When you remove the DWC tray, note the tray bay number. Reinstalling a DWC tray into a
different tray bay from the one it was removed from can have unintended consequences. Some
configuration information and update options are established according to tray bay number. If
you reinstall the DWC tray into a different tray bay, you might have to reconfigure the DWC tray.
Step 2. Pull the DWC tray out of the NeXtScale n1200 Enclosure until you see the warning icon in the right
side of the cover; then, adjust hands and grip tray (~38lb) at sides to carefully pull out of enclosure.
.
Chapter 3 Solution hardware setup
33