222 | Troubleshooting Your Systemmemory module in the first DIMM socket with a module of the sametype and capacity. See "Installing the Memory Modules" on page 167.15 Install the system-board assembly. See "Removing a System-BoardAssembly" on page 115.16 Reconnect the system to its electrical outlet, and turn on the systemand attached peripherals.17 As the system boots, observe any error message that appears and thediagnostic indicators on the front of the system.18 If the memory problem is still indicated, repeat step 11 through step 17for each memory module installed.If the problem persists after all memory modules have been checked,see "Getting Help" on page 246.Troubleshooting a Hard DriveCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is notcovered by your warranty. Read and follow the safety instructions that came withthe product.CAUTION: This troubleshooting procedure can destroy data stored on the harddrive. Before you proceed, back up all files on the hard drive.1 If your system has a RAID controller and your hard drives areconfigured in a RAID array, perform the following steps:a. Restart the system and enter the host adapter configuration utilityprogram by pressing for a RAID controller or for a SAS controller.See the documentation supplied with the host adapter forinformation about the configuration utility.
