Step 3.  Align the memory module with the slot; then, press the memory module into the slot with even 
pressure on both ends of the memory module until the retaining clips snap into the locked position. 
Note: Make sure that the small tabs on the retaining clips engage with the notches on the memory 
module. If there is a gap between the memory module and the retaining clips, it indicates that the 
memory module has not been properly installed. Remove the memory module and reinstall it.
Figure 90. Installing a memory module
After you finish 
1.  Install other memory modules if necessary.
2.  If the optical drive cage was removed, reinstall it to the chassis, see 
“Install the optical drive cage” on 
page 77
.
3.  Reconfigure the memory module if necessary.
4.  Proceed to complete the parts replacement, see 
“Complete the parts replacement” on page 158.
Mono amplifier (speaker) replacement
Follow this procedure to remove and install the mono amplifier (speaker).
Remove the mono amplifier (speaker)
Follow this procedure to remove the mono amplifier (speaker).
S002 
CAUTION: 
The power-control button on the device and the power switch on the power supply do not turn off the 
electrical current 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.
Chapter 3. Hardware replacement procedures 115