Replacing the expansion unit in a PS704 blade server

Install a new expansion unit on the PS704 double-wide blade server.

1. Lift the expansion unit above the blade server base unit and engage the circular pivot bearings onto the cover pins (as shown by  1  in Figure 1) of the base unit.

   The expansion unit of the PS704 blade server fits on top of the PS704 base unit, with the DIMM slots and expansion card slots on top.

   Figure 1. Replacing the expansion unit

   
2. Pivot the expansion unit on the cover pins of the PS704 base unit and lower the expansion unit until it lies flat on the PS704 base unit.
3. To access the expansion-blade retention thumb screw, see  4  in Figure 2.
   Figure 2. Expansion blade retention screw

   
4. Lift the wing on the expansion-blade retention thumb screw as shown in the preceding figure.
5. Tighten the thumb screw ( 4 ) by rotating the screw clockwise until the connection between the expansion unit and the PS704 base unit is secure. Stop tightening when firm resistance is detected. Ensure that the thumb screw wing is down.
   Note: You can optionally use a Phillips screwdriver to tighten the retention thumb screw.
6. Install and close the blade server cover. See Installing and closing the blade server cover.

   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.
7. Install the blade server into the BladeCenter unit. See Installing the blade server in a BladeCenter unit.