Installing a water-cooled technology tray in a chassis

Use this information to install a water-cooled technology tray in a Lenovo NeXtScale n1200 Enclosure Type 5468.

Before you install the water-cooled technology tray in a chassis, read Safety and Installation guidelines.

Statement 21

CAUTION:

Hazardous energy is present when the water-cooled technology tray is connected to the power source. Always replace the compute tray cover before installing the water-cooled technology tray.

If you are installing a water-cooled technology tray model without an integrated Ethernet controller, you must install a network interface adapter before you install the water-cooled technology tray in the chassis for management network communication. For a list of supported optional devices for the water-cooled technology tray, see the IBM ServerProven website.

To install the water-cooled technology tray in a chassis, complete the following steps.

Figure 1. Installing the water-cooled technology tray in a Lenovo NeXtScale n1200 Enclosure Type 5468

1. Select the tray bay.
   Notes:

   1. If you are reinstalling a water-cooled technology tray that you removed, you must install it in the same tray bay from which you removed it. Some water-cooled technology tray configuration information and update options are established according to tray bay number. Reinstalling a water-cooled technology tray into a different tray bay can have unintended consequences. If you reinstall the water-cooled technology tray into a different tray bay, you might have to reconfigure the water-cooled technology tray.
   2. To maintain proper system cooling, do not operate the Lenovo NeXtScale n1200 Enclosure Type 5468 without a water-cooled technology tray or tray bay filler in each tray bay.
2. Make sure that the front handles on the water-cooled technology tray are in the open position.
3. Slide the water-cooled technology tray into the tray bay until it stops.
4. Push the front handles on the front of the water-cooled technology tray to the closed position.
   Note: After the water-cooled technology tray is installed, the IMM2.1 in the water-cooled technology tray initializes. This process takes approximately 90 seconds. The power LED flashes rapidly, and the power button on the water-cooled technology tray does not respond until this process is complete.
5. Press the power button to turn on both systems in the water-cooled technology tray (see Turning on the server for instructions).
6. Make sure that the power LED on the water-cooled technology tray control panel is lit continuously, indicating that the water-cooled technology tray is receiving power and is turned on.
7. If you have other water-cooled technology tray to install, do so now.