Reading and understanding this safety information reduces the risk of personal injury and damage to your product. Danger: Beware of extremely hazardous or lethal situations. Attention: Beware of possible damage to programs, devices, or data. Note: Pay attention to this important information. © Copyright Lenovo 2010. 31044392_Q150_UG_EN_V1.0.indd 1 2010.4.20 10:46:45 AM 31044392_Q150_UG_EN_V1.0.indd 2 2010.4.20 10:46:45 AM Contents Important Safety Information Chapter 1 Using the Computer Hardwar

DO NOT PRINT. Please change the barcode No. Please change the country name if the poster is printed in other than China. n:nnn no'^D1? ThinkLight 'iw 'Qo/n^vsn1? n'ln'o1?!» 'IP'S n DDB nai^nn nrrra 'n'w1? | lonn pm n^Ttn1? P/N: 42T7895 UltraConnect(TM) wireless LAN Q antennas (main and auxiliary) UltraConnect jvoirVjN LAN n«n jiiuin Q .in'?! O'n'IOn O'nAll* ThinkLight(R) jiund Q nnN ti nn'DD1? nm Q □ □ □ □ □ □ Q] nwnnn B ^nwnni n^ion Q nmnn no'^D1? ■ □ "oin^K o'iqti nAKnn nnT

v Regulatory Notice included in the package with this publication. First Edition (March 2007) © Copyright Lenovo 2007. All rights reserved. U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is unable to accept this Program under these terms, then

There are three LEDs to help you determine if the power supply and system board are working correctly. A power button LED is located on the front of the computer and two diagnostic LEDs are located on the power supply at the rear of the computer. a. Disconnect the power cord from the electrical outlet. b. Reconnect the power cord to a working electrical outlet. c. Press the power button. © Lenovo 2005. Portions © IBM Corp. 2005. 45 d. Observe the LEDs and refer to the following table. Power LED

This product is in conformity with the protection requirements of EU Council Directive 2004/108/EC on theapproximation of the laws of the Member States

Observe the following rules when working on electrical equipment.Important: Use only approved tools and test equipment. Some hand tools have handles covered