User manual LENOVO G770

[. . . ] Lenovo G770 User Guide V1. 0 Read the safety notices and important tips in the included manuals before using your computer. Notes · Before using the product, be sure to read Lenovo Safety and General Information Guide first. · Some instructions in this guide may assume that you are using Windows® 7. If you are using other Windows operating system, some operations may be slightly different. If you are using other operating systems, some operations may not apply to you. [. . . ] Make sure to back up any critical data before using the recovery feature. Creating a recovery disc(s) Your computer does not ship with a recovery disc. You can use Lenovo OneKey Recovery system to create a recovery disc(s), which can be used to start and restore your computer in case of a system failure. To create a recovery disc(s): · Insert a recordable disc into the optical drive on your computer. Note: If your computer does not come with an integrated optical drive or if the integrated optical drive does not support disc creating, connect an appropriate external optical drive to your computer. · In Windows, press the OneKey Rescue system button to launch Lenovo OneKey Recovery system. · On the main screen, click Create Recovery Disc. · Choose the type of recovery disc(s). You can create three types of recovery disc(s): recovery disc(s) with existing backup image, recovery disc(s) from the current system partition, and factory default recovery disc(s). Select the type of recovery disc you want to create and follow the on-screen instructions. · Insert additional recordable disc(s) when prompted. 27 Chapter 4. OneKey Rescue system Notes: · The estimated number of discs needed will be displayed before the process of creating the recovery disc(s) begins. To minimize the number of discs needed, use recordable DVDs as the media. Also make sure your optical drive is compatible with the disc intended for use. · After recovery disc creation, number the discs appropriately for use in their correct order. The first disc created will be used to start the computer in the case of a system failure. 28 Chapter 5. Troubleshooting Frequently asked questions ------------------------------------------------------------This section lists frequently asked questions and tells where you can find detailed answers. What safety precautions should I follow when using my computer?Important safety information" of Lenovo Safety and General Information Guide. How can I prevent problems with my computer?Use and care Information" of Lenovo Safety and General Information Guide. What are the main hardware features of my computer?More information can be found in Chapter 1 and 2. Where can I find the detailed specifications for my computer?I need to upgrade a device or I need to replace one of the following: the hard disk drive, memory, or the keyboard. CRU instructions" on page 35 of this guide. [. . . ] CRU instructions Replacing memory -------------------------------------------------------------------------You can increase the amount of memory in your computer by installing a double-data-rate three synchronous dynamic random access memory (DDR3 SDRAM)-available as an option-in the memory slot of your computer. DDR3 SDRAMs are available in various capacities. Note: Use only the memory types supported by your computer. If you incorrectly install optional memory, or install an unsupported memory type, a warning beep will sound when you try to start the computer. To install a DDR3 SDRAM, do the following: 1 Touch a metal table or a grounded metal object to reduce any static electricity in your body, which could damage the DDR3 SDRAM. Do not touch the contact edge of the DDR3 SDRAM. [. . . ]