Dell PowerEdge 4200 Installation And Troubleshooting Manual

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Dell PowerEdge 4200 Installation And Troubleshooting Manual Manual pdf 86 page image

8-6 Dell PowerEdge 4200 Systems Installation and Troubleshooting GuidePerforming a Memory UpgradeUse the following procedure to perform a memoryupgrade to the system board:1. Remove the left computer cover.See “Removing the Computer Covers” in Chapter 7.2. Locate the DIMM sockets in which you willinstall or replace DIMMs.Figure 8-1 shows the location of the DIMM socketson the system board.3. Install or replace the DIMMs as necessary toreach the desired memory total.Follow the instructions in “Installing DIMMs” or“Removing DIMMs” found later in this section, asappropriate.4. Replace the left computer cover, and then recon-nect the computer and peripherals to their powersources and turn them on.After the system completes the power-on self-test(POST) routine, it runs a memory test that displaysthe new memory total, which includes all newlyinstalled memory.NOTE: If the memory total is incorrect, turn off anddisconnect the computer and peripherals from theirpower sources, remove the computer cover, andcheck all the installed DIMMs to make sure they areseated properly in their sockets. Then repeat step 4.The system detects that the new memory does notmatch the system configuration information, whichis stored in nonvolatile random-access memory(NVRAM). The monitor displays an error messageto that effect that ends with the following words:Press to continue; to enterSystem Setup, to enter UtilityMode.5. Press to enter the System Setup program, andcheck the Base Memory and Extended Memorycategories in the system data box on the System Setupscreens.The system should have already changed the value inthe Extended Memory category to reflect the newlyinstalled memory. Verify the new total by adding theBase Memory and Extended Memory values.NOTE: The value of Base Memory is given in kilo-bytes. To convert kilobytes to megabytes, divide thekilobyte total by 1024.If the total is incorrect, one or more of the DIMMsmay not be installed properly. Repeat this procedureagain, checking to make sure the DIMMs are firmlyseated in their sockets.6. Enter the EISA Configuration Utility. Then savethe configuration and exit the utility.Running the EISA Configuration Utility and savingthe configuration is required for the system to recog-nize the newly installed DIMM(s). See Chapter 5,“Using the EISA Configuration Utility,” in the User’sGuide for instructions on running the utility and sav-ing the configuration.7. Run the RAM Test Group in the systemdiagnostics.See Chapter 5, “Running the System Diagnostics,”for information.Installing DIMMsInstall DIMMs starting with socket DIMM_A, locatedfarthest from the microprocessor sockets, and workingtowards DIMM_H. If a DIMM is already installed in thesocket you need, you must remove it. Follow the instruc-tions in the next subsection, “Removing DIMMs,” ifappropriate.To install a DIMM, follow these steps:1. Press the ejectors on the DIMM socket down andoutward as shown in Figure 8-4 to allow theDIMM to be inserted in the socket.2. Align the DIMM’s edge connector with the slot inthe center of the DIMM socket, and insert theDIMM in the socket.The card-edge connector on the DIMM is keyedusing two notches so that the DIMM can be installedin the socket in only one way (see Figure 8-4).CAUTION: See “Protecting Against Electro-static Discharge” in the safety instructions atthe front of this guide.