電源供應器 - PSU.....................................................................................................................................................54 電源配電板.................................................................................................................................................................57 擴充卡.........................................................................................................................................................................59 主機板......................................................................................................................................................................... 70 4 疑難排解...................................................................................................................................................... 74 增強型開機前系統評估 — ePSA 診斷.........................................................................................................................74 執行 ePSA 診斷......................................................................................................................................................... 74 診斷....................................................................................................................................................................................74 PSU LED 指示燈..............................................................................................................................................................76 診斷錯誤訊息...................................................................................................................................................................76 系統錯誤訊息...................................................................................................................................................................79 5 獲得幫助......................................................................................................................................................80 與 Dell 公司聯絡.............................................................................................................................................................. 80 4 目錄