Lenovo C300 Lenovo 3000 C300 Hardware Replacement Guide V1.0 - Page 10

Chapter Replacing hardware Attention: Do not remove the computer cover or attempt any repair before reading the "Important safety information" in the Safety and Warranty Guide that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety and Warranty Guide or HMM, go to the Support Web site at http://consumersupport.lenovo.com. Note: Use only parts provided by Lenovo. General information Pre-disassembly instructions Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug all power and signal cables from the computer. 3. Place the system on a flat, stable surface. Replacing a memory module Attention: Turn off the computer and wait 3 to 5 minutes to let the computer cool before removing the computer cover. To remove the computer cover: Note: For this procedure, it helps to place the computer face-down on a soft flat surface. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the touch screen surface from scratches or other damage. Hardware Replacement Guide 7 31037187_3000 C3_HRG_EN.indd 7 2009.5.11 1:59:19 PM