78 TroubleshootingNo memory modules aredetected.• If two or more memorymodules are installed, removethe modules (see "RemovingMemory" on page 108), thenreinstall one module (see"Installing Memory" onpage 106) and restart thecomputer. If the computerstarts normally, continue toinstall additional memorymodules (one at a time) untilyou have identified a faultymodule or reinstalled allmodules without error.• If available, install workingmemory of the same type intoyour computer (see "InstallingMemory" on page 106).• If the problem persists, contactDell (see "Contacting Dell" onpage 200).Memory modules aredetected, but a memoryconfiguration orcompatibility error hasoccurred.• Ensure that no specialrequirements for memorymodule/connector placementexist (see "Memory" onpage 104).• Ensure that the memory youare using is supported by yourcomputer (see "Memory" onpage 173).• If the problem persists, contactDell (see "Contacting Dell" onpage 200).Light Pattern Problem Description Suggested Resolutionbook.book Page 78 Tuesday, November 27, 2007 10:29 AM
