Second Edition (April 2011) © Copyright Lenovo 2011. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925. Contents Aboutthismanual........... iii Chapter 1. Safety information . . . . . 1 Generalsafety................ 1 Electricalsafety ............... 2 Safetyinspectionguide . . . . . . . . . . . . 3 Handling devices tha

Two short beeps and a blank screen. 1. System board. 2. DIMM. Two or more beeps, or a continuous beep. Operating system starts successfully. If a mini-PCI Ethernet card is installed, confirm that Alert On LAN 2 in the ThinkPad Setup program is disabled. Three short beeps, pause, three more short beeps, and one short beep. 1. DIMM. 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.

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