Dell 1900 Installing a RAC Card

Installing System Components 85

13 If the value is incorrect, one or more of the memory modules may not be installed properly. Repeat

step 2

through

step 12

of this procedure, checking to ensure that the memory modules are firmly

seated in their sockets.

14 Run the system memory test in the system diagnostics. See

"Running the System Diagnostics" on

page121

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the

components inside the system. See your Product Information Guide for complete information about safety

precautions, working inside the computer, and protecting against electrostatic discharge.

Turn off the system, including any attached peripherals, and disconnect the system from the electrical

outlet.

2Open the system. See

"Opening the System" on page48

3Remove the memory cooling shroud. See

"Removing the Cooling Shroud" on page 77

NOTICE: Never remove the memory cooling shroud without first powering down the system. Overheating of the

system can develop quickly resulting in a shutdown of the system and the loss of data.

4Locate the memory module sockets on the system board. See

Figure 6- 2

CAUTION: The DIMMs are hot to the touch for some time after the system has been powered down. Allow time

for the DIMMs to cool before handling them. Handle the DIMMs by the card edges and avoid touching the DIMM

components.

5Press down and out on the ejectors on each end of the socket until the memory module pops out of

the socket. See

Figure3-21

Replace the memory cooling shroud. See "Removing and Installing the Cooling Shroud Fan" on

page54.

NOTICE: Never operate your system with the memory cooling shroud removed. Overheating of the system can

develop quickly resulting in a shutdown of the system and the loss of data.

7Close the system. See

"Closing the System" on page 48.

Connect the power cable to the power supply and the power outlet.