Lenovo H420 Desktop- User Manual

2 Hardware Replacement Guide Additional information resources If you have Internet access, the most up-to-date information for your computer is available from the World Wide Web. You can find the following information: • CRU removal and installation information • Publications • Troubleshooting infor...

5 Hardware Replacement Guide Locations Chapter This chapter provides illustrations to help locate the various connectors, controls and components of the computer. To remove the computer cover, refer to “Removing the computer cover”. Locating components The following illustration will help you to loc...

6 Hardware Replacement Guide PCI express adapter cardPCI express adapter connectors Power supplySystem fanOptical driveHard disk drive Locating connectors on the front of the computer The following illustration shows the location of connectors on the front of the computer. Power buttonOptical Drive ...

7 Hardware Replacement Guide Note: This computer only can be placed in a vertical position. Locating connectors on the rear of the computer The following illustrations show the location of connectors on the rear of the computer. They show the placement of connectors for some but not all models. The ...

13 Hardware Replacement Guide Identifying parts on the system board The system board (sometimes called the motherboard) is the main circuit board in your computer. It provides basic computer functions and supports a variety of devices that are factory-installed or that you can install later. The fol...

19 Hardware Replacement Guide 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 th...

21 Hardware Replacement Guide Removing and replacing the front bezel To remove and replace the front bezel: 1. Remove the computer cover. Refer to “Removing the computer cover”. Note: For this procedure, it helps to lay the computer on its side. 2. Remove the front bezel by releasing the three plast...

22 Hardware Replacement Guide Replacing a memory module 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 comput...

23 Hardware Replacement Guide 5. Refer to “Completing the installation”. Replacing the hard disk drive 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 H...

24 Hardware Replacement Guide 3. Remove the four screws that secure the hard disk drive to drive bay.4. Remove the hard disk drive by pulling it straight out of the drive bay.5. Slide the new hard disk drive into the drive bay. 6. Secure the new hard disk drive to the drive bay with the four screws....

26 Hardware Replacement Guide Replacing the heatsink assembly 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 ...

28 Hardware Replacement Guide Replacing a PCI or AGP adapter 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 c...

30 Hardware Replacement Guide Replacing the keyboard and mouse 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...

31 Hardware Replacement Guide Completing the installation After replacing a part or parts, you must close the computer cover and reconnect all the cables, including telephone lines and power cords. Some parts will require confirming updated information in the Setup Utility program. Refer to “Startin...

33 Hardware Replacement Guide Appendix Chapter Declaration Thank you for using Lenovo products. Carefully read all documents shipped with your computer before you install and use the product for the first time. Lenovo is not responsible for any loss except when caused by installation and operations ...

34 Hardware Replacement Guide Trademarks Lenovo and the Lenovo logo, IdeaCentre and IdeaCentre logo are trademarks of Lenovo in the United States, other countries, or both. Microsoft, Windows, and Windows Vista are trademarks of the Microsoft group of companies. Intel Inside is a trademark of Intel ...