1. Read the Safety topic and the "Installation guidelines" on page 229.
2. Shut down the operating system, turn off the blade server, and remove the blade server from the
BladeCenter unit. See "Removing the blade server from a BladeCenter unit" on page 231.
3. Carefully lay the blade server on a flat, static-protective surface, with the cover side up.
4. Open and remove the blade server cover. See "Removing the blade server cover" on page 233.
Note: If you are servicing the base unit of a PS704 blade server, you must first remove the expansion
unit. For more information, see "Removing the expansion unit for a PS704 blade server" on page 237.
5. Remove the disk drive if one is installed. See "Removing a hard-disk drive" on page 242.
6. Remove the four screws that secure the drive tray ( 1 in Figure 44 on page 260) to the system board
and remove the drive tray.
Installing the disk drive tray
You can install the disk drive tray.
Figure 45. Installing the disk drive tray
To install the disk drive tray, complete the following steps:
1. Place the drive tray ( 1 in Figure 45) into position on the system board and install the four screws to
secure it.
2. Install the disk drive that was removed from the drive tray. See "Installing a hard-disk drive" on page
243 for instructions.
3. Install and close the blade server cover. See "Installing and closing the blade server cover" on page
235.
Statement 21
CAUTION:
Hazardous energy is present when the blade server is connected to the power source. Always
replace the blade server cover before installing the blade server.
Chapter 4. Removing and replacing blade server components
261