Dell Precision T7400 User's Guide - Page 112

Light Pattern Problem Description System board failure has occurred. Memory modules are detected, but a memory configuration or compatibility error exists. Routine system activity preceding video initialization. Suggested Resolution If the first memory module tested is defective, repeat the process with the remaining modules to ensure that the remaining modules are not defective. 8 When the defective memory module is identified, contact Dell for a replacement (see "Contacting Dell" on page 287). Contact Dell for technical assistance (see "Contacting Dell" on page 287). • Ensure that no special memory module/memory connector placement requirements exist (see "Memory" on page 172). • Verify that the memory modules that you are installing are compatible with your computer (see "Memory" on page 172). • Reinstall the memory modules and restart the computer. • If the problem persists, contact Dell (see "Contacting Dell" on page 287). Watch your monitor for onscreen messages. 112 Troubleshooting Tools