38Using Support ToolsStarting Dell Diagnostics From YourHard DriveThe Dell Diagnostics is located on a hiddendiagnostic utility partition on your hard drive.NOTE: If your computer cannot displaya screen image, contact Dell (see“Contacting Dell” on page 55).Ensure that the computer is connected to an1.electrical outlet that is known to be workingproperly.Turn on (or restart) your computer.2.When the DELL3. ™ logo appears, press immediately. Select Diagnostics from theboot menu and press .This may invoke the Pre‑Boot SystemAssessment (PSA) on your computer.NOTE: If you wait too long and the operatingsystem logo appears, continue to wait untilyou see the Microsoft® Windows® desktop;then, shut down your computer and try again.NOTE: If you see a message stating that nodiagnostic utility partition has been found,run the Dell Diagnostics from theDriversand Utilities disc.If PSA is invoked:The PSA will start running the tests.a.If the PSA completes successfully, theb.following message is displayed: “Noproblems have been foundwith this system so far.Do you want to run theremaining memory tests? Thiswill take about 30 minutesor more. Do you want tocontinue? (Recommended).”