Dell OptiPlex SX280 Quick Reference Guide - Page 23

Power Light Problem Description Suggested Resolution Solid green power light and no beep code and no video during POST The monitor may be faulty or incorrectly installed. Check "Diagnostic Lights" on page 23 to see if the specific problem is identified. Solid green and a beep code during POST A problem was detected while the BIOS See "Running the Dell™ IDE Hard Drive was executing. Diagnostics" on page 27 for instructions on diagnosing the beep code. Also, check the diagnostic lights to see if the specific problem is identified. Solid yellow The Dell Diagnostics is running a test, If the Dell Diagnostics is running, allow the testing or a device on the system board may be to complete. faulty or incorrectly installed. Check "Diagnostic Lights" on page 23 to see if the specific problem is identified. If the computer does not boot, contact Dell for technical assistance. Blinks green several A configuration error exists. times and then turns off Check "Diagnostic Lights" on page 23 to see if the specific problem is identified. Blinking green The computer is in the suspended state Press the power button to wake the computer. (Microsoft® Windows® 2000 and Windows XP). Solid green Power is on, and the computer is operating normally. No corrective action is required. Diagnostic Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" on the back panel (see page 9). The lights can be yellow or green. When the computer starts normally, the patterns or codes on the lights change as the boot process completes. If the POST portion of system boot completes successfully, all four lights display solid green. If the computer malfunctions during the POST process, the pattern displayed on the lights may help identify where in the process the computer halted. Quick Reference Guide 23