Lenovo W700ds Hardware Maintenance Manual - Page 52
Beep symptoms, Reseat DIMM
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Beep symptoms Table 3. Beep symptoms Symptom or error FRU or action, in sequence One beep and a blank, unreadable, or flashing LCD. 1. Reseat the LCD connector. 2. LCD assembly. 3. External CRT. 4. System board. One long and two short beeps, and a blank or unreadable LCD. 1. System board. 2. LCD assembly. 3. DIMM. Two short beeps with error codes. POST error. See "Numeric error codes" on page 39. Two short beeps and a blank screen. 1. System board. 2. DIMM. Three short beeps, pause, three more short 1. DIMM. beeps, and one short beep. 2. System board One short beep, pause, three short beeps, pause, three more short beeps, and one short beep. Only the cursor appears. Reinstall the operating system. Four cycles of four short beeps and a blank System board (security chip) screen. Five short beeps and a blank screen. System board No-beep symptoms Table 4. No-beep symptoms Symptom or error FRU or action, in sequence No beep, power-on indicator on, LCD blank, 1. Make sure that every connector is and no POST. connected tightly and correctly. 2. DIMM. 3. System board. No beep, power-on indicator on, and LCD blank during POST. 1. Reseat DIMM. 2. System board. The power-on password prompt appears. A power-on password or a supervisor password is set. Type the password and press Enter. The hard-disk password prompt appears. A hard-disk password is set. Type the password and press Enter. 44 ThinkPad W700 and W700ds Hardware Maintenance Manual