Lenovo H505s Desktop- User Manual

Chapter 2. Safety information This chapter contains the safety information that you need to be familiar with before servicing a computer. General safety Follow these rules to ensure general safety: • Observe good housekeeping in the area of the machines during and after maintenance. • When lifting a...

• Avoid contact with other people while handling the part. • Wear a grounded wrist strap against your skin to eliminate static on your body. • Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap. • Use the black side ...

To Connect To Disconnect 1. Turn everything OFF. 2. First, attach all cables to devices. 3. Attach signal cables to connectors. 4. Attach power cords to outlet. 5. Turn device ON. 1. Turn everything OFF. 2. First, remove power cords from outlet. 3. Remove signal cables from connectors. 4. Remove all...

Chapter 3. General information This chapter provides general information that applies to all machine types supported by this publication. Specifications This section lists the physical specifications for your computer. This section lists the physical specifications for your computer. Type Lenovo H50...

Chapter 4. General Checkout Attention: The drives in the computer you are servicing might have been rearranged or the drive startup sequence changed. Be extremely careful during write operations such as copying, saving, or formatting.Data or programs can be overwritten if you select an incorrect dri...

Chapter 5. Using the Setup Utility The Setup Utility program is used to view and change the configuration settings of your computer, regardlessof which operating system you are using. However, the operating-system settings might override any similarsettings in the Setup Utility program. Starting the...

To set a Power-On Password, do the following: 1. Start the Lenovo BIOS Setup Utility program (See ”Starting the Lenovo BIOS Setup Utility program” on page 13.) 2. From the Security menu, select Set Power-On Password and press the Enter key. 3. The password dialog box will be displayed. Type the pass...

Onboard Audio Controller Select whether to enable or disable the Onboard Audio Controller , when feature is set to Disabled all devices connected to the audio connectors (e.g. a headphone ora microphone) are disabled and can’t be used. Onboard Ethernet Controller or LAN Boot Agent Select whether to ...

To view or permanently change the configured startup device sequence, do the following: 1. Start the Lenovo BIOS Setup Utility program (see “Starting the Lenovo BIOS Setup Utility program” on page 13). 2. From the Lenovo BIOS Setup Utility program main menu, select the Startup option. 3. Press the E...

Chapter 6. Symptom-to-FRU Index The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first.Always begin with Chapter 4, “General Checkout,” on page 11. This index can also be used to help youdecide which FRUs to have available when servicing a computer. ...

POST error codes Each time you turn the computer on, it performs a series of tests to check that the system is operatingcorrectly and that certain options are set. This series of tests is called the Power-On Self-Test , or POST . POST does the following: • Checks some basic system-board operations •...

Chapter 7. Locating connectors, controls and components This section provides illustrations to help locate the various connectors, controls and components of thecomputer. © Copyright Lenovo 2012 21

Font view The following illustration shows the location of controls and components on the front of the computer. Attention: Be careful not to block any air vents on the computer. Blocked air vents can cause overheating. 1. Power button 5. Headphone connector 2. Memory card reader (selected models on...

Rear view The following illustration shows the location of connectors and components on the rear of the computer. Le no vo H5 0 5 s 1. On-board VGA connector 6. Ethernet connector 2. WiFi antenna (selected models only) 7. Audio connectors 3. HDMI connector (selected models only) 8. Power connector 4...

Hardware components The following illustration shows the components that make up your computer. 3 1 2 4 Le no vo H5 0 5 s 1. Heatsink and microprocessor fan 3. Optical disk drive and bay 2. System board 4. Hard disk drive 24 Lenovo H505sHardware Maintenance Manual

Identifying parts on the motherboard The motherboard (sometimes called the planar or system board) is the main circuit board in your computer.It provides basic computing functions and supports a variety of devices that are factory-installed or thatyou can install later. The following illustration sh...

Chapter 8. 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. To obtain copies of the Safety and WarrantyGuide, go to the Support Web site at: ht...

Replacing the keyboard and mouse To replace the keyboard and mouse Step 1. Remove any media (disks, CDs, DVDs or memory cards) from the drives, shut down the operatingsystem, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Step 3. Disconnec...

Step 4. Remove the 2 screws that secure the computer cover at the rear of the chassis. Step 5. To reinstall the computer cover: a. Line up the computer cover with the chassis then slide it back. b. Secure the computer cover to the chassis with the screws. Removing the front bezel Attention: Turn off...

Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratchesor other damage. To remove the front bezel: Step 1. Remove any media (disks, CDs, DVDs,...

c. Slide the optical disk drive bay back, then push it in and reattach it to the chassis with thescrews. Step 11. Reattach the front bezel, computer cover. Replacing the hard disk drive Note: For this procedure, it helps to lay the computer flat. To replace the hard disk drive: Step 1. Remove any me...

Step 10. Slide the hard disk drive out of the bay. Step 11. Install the new hard disk drive ： a. Insert the new hard disk drive into the drive bay. b. Screw back the 4 screws on the drive bay. c. Attach the data and power cables to the new hard disk drive. d. Line up the hard disk drive bay, then sl...

Step 6. Remove the memory module being replaced by opening the retaining clips as shown. Step 7. Position the new memory module over the memory connector. Make sure the notch 1 on the memory module is correctly aligned with the connector key 2 on the system board. Push the memory module straight dow...

Step 2. Disconnect the power cables from the connectors on motherboard. Step 3. Install the new adapter ： a. Connect the power cables to the connectors on the motherboard. Replacing the graphic card To replace the graphic card: Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the dr...

Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operatingsystem, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Step 3. Disconnect all cables attached to the computer. This includes power cords, ...

Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)cables, and any other cables that are connected to the computer. Refer to “Left and right view”and “Rear view” for help with locating the various connectors. Step 4. Remove the computer cover. Refer ...

Step 4. Remove the computer cover. Refer to “Removing the computer cover”. Step 5. Remove the front bezel. Refer to “Removing the front bezel”. Step 6. Remove the optical drive. Refer to “Replacing the optical drive”. Step 7. Remove the hard disk drive. Refer to “Replacing the hard disk drive”. Step...

Chapter 9. General information This chapter provides general information that applies to all machine types supported by this publication. Additional Service Information This chapter provides additional information that the service representative might find helpful. Power management Power management ...