Lenovo IdeaCentre K450 IdeaCentre K4 Series Hardware Maintenance Manual
Lenovo IdeaCentre K450 Manual
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- Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 1
IdeaCentre K4 Series Hardware Maintenance Manual ideaideaideaCentreidea Machine Types: 10120/90A0 [K450 ES]; 10121/90A1 [K450 Non-ES] - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 2
- Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 3
IdeaCentre K4 Series Hardware Maintenance Manual Machine Types: 10120/90A0 [K450 ES]; 10121/90A1 [K450 Non-ES] - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 4
First Edition (May 2013)24th © Copyright Lenovo 2013. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services Administration "GSA" contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925 - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 5
-Tuner card 31 Replacing the Power supply 33 Replacing the microprocessor fan 33 Replacing the heat-sink 34 Replacing the CPU 35 Replacing the Wi-Fi card 37 Replacing the motherboard 38 Chapter 9. General information . . . . 41 Additional Service Information 41 © Copyright Lenovo 2013 iii - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 6
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manual This manual contains service and reference information for IdeaCentre K450 computers listed on the cover. It is intended only for trained servicers who are familiar with Lenovo computer products. Before servicing a Lenovo document avant d'exécuter les instructions. Lesen Sie unbedingt alle - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 8
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safe place, away from all personnel, while you are servicing the machine. • Keep your tool case away from power cords, telecommunication systems, networks, and modems before you open the computer covers, unless instructed otherwise in the installation and configuration procedures. © Copyright Lenovo - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 10
power-off controls, is near you. Remember: Another person must be there to switch off the power, if necessary. - Use only one hand when working with powered instructions service the following parts with the power on when they are removed from their normal operating places in a machine: - Power supply - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 11
and service personnel from injury. This guide addresses power-supply cover fasteners (screws or rivets) have not been removed or tampered with. Handling electrostatic discharge-sensitive devices Any computer same charge. Notes: 1. Use product-specific ESD procedures when they exceed the requirements - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 12
, to provide protection that meets the specific service requirement. Note: The use of a ac-operated computers. Grounding requirements Electrical grounding of the computer is required power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 13
to connectors. 4. Attach power cords to outlet. 5. Turn device ON. To Disconnect 1. Turn everything OFF. 2. First, remove power cords from outlet. 3. hazardous laser radiation. There are no serviceable parts inside the device. • Use of controls or adjustments or performance of procedures other - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 14
≥32 kg(70.5 lbs) ≥55 kg(121.2 lbs) CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 15
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 IdeaCentre K450 This section lists the physical specifications. Environment Air temperature - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 16
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cause of the problem: 1. Power-off the computer and all external devices. 2. Check all cables and power cords. 3. Set all display controls to the middle position. 4. Power-on all external devices. 5. Power-on the computer. • Look for displayed error codes • Look for readable instructions or a main - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 18
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this procedure, shut down the operating system and turn off the computer. 2. Press and hold the F1 key then turn on the computer. When the Lenovo BIOS Setup Utility program is displayed, release the F1 key. Note: If a Power-On Password or an Administrator Password has been set, the Setup Utility - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 20
if you are responsible for maintaining the settings of several computers. After you set an Administrator Password, a password prompt is displayed every time you access the Lenovo BIOS Setup Utility program. If both the Administrator and Power-On Password are set, you can type either password - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 21
the current password and press the Enter key. 3. To delete the Power-On Password, Enter blank fields for each new password line item. A setup notice will display that changes have been saved. 4. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option. 5. Select Save changes - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 22
press the Enter key, and then select Onboard Audio Controller. Network Setup press the Enter key, then select Onboard Ethernet Support or Boot Agent. 4. Select Disabled or Enabled and press the Enter key. 5. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option. 6. Select - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 23
want to save the new settings, select Save changes and Exit from the menu. When the Save & reset window shows, select the Yes button, and then press the Enter key to exit the Lenovo BIOS Setup Utility program. • If you do not want to save the settings, select Discard changes and Exit from - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 24
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the hard disk drive. Power Supply Problems Follow these procedures if you suspect there is a power supply problem. Check/Verify Check that the following are properly installed: • Power Cord • On/Off Switch connector • System Board Power Supply connectors • Microprocessor(s) connection Check - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 26
bootable media in the boot device. Undetermined problems 1. Power-off the computer. 2. Remove or disconnect the following components (if connected or installed) one at a time. a. External devices (modem, printer, or mouse) b. Extended video memory c. External Cache d. External Cache RAM e. Hard - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 27
disk drive 3 Graphics card 5 4 Memory modules 5 System fan 6 Power supply Identifying parts on the system board The system board (also known as the "mainboard" or "motherboard") is the main circuit board in your computer. It provides basic computer functions and supports a variety of devices that - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 28
K450 Lenovo K450 12 3 4 5 6 7 8 9 10 11 12 13 27 26 25 24 23 22 21 20 19 18 17 16 15 14 1 12V power connector 2 Microprocessor and heat sink 3 Microprocessor fan header 4 Memory slots (4) 5 Thermal sensor header 6 Mini PCI-E slot 7 Power header 22 IdeaCentre K4 SeriesHardware Maintenance Manual - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 29
with your computer. To obtain copies of the Safety and Warranty Guide, go to the Support Web site at: http://consumersupport.lenovo.com 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 - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 30
. To replace the keyboard: Step 1. Step 2. Step 3. Remove any media (disks, CDs, or memory cards) from the drives, shut down the computer, and turn off all attached devices. Unplug all power cords from electrical outlets. Locate the connector for the keyboard. Refer to "Front view of the chassis - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 31
remove it. Step 6. 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 Note: For this procedure, it helps to lay the computer flat. To remove the front bezel: Step - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 32
: Step 1. Step 2. Step 3. Remove the computer cover. Refer to "Removing the computer cover". Locate the memory module connectors. Refer to "Locating components". Remove the memory module to be replaced by opening the retaining clips as shown. 26 IdeaCentre K4 SeriesHardware Maintenance Manual - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 33
hard disk drive Note: For this procedure, it helps to lay the computer flat. To replace a hard disk drive: Step 1. Step 2. Step 3. Remove the computer cover. Refer to "Removing the computer cover". Disconnect the data and power cables from the hard disk drive. Lift up the plastic handle and slide - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 34
the chassis. 2 3 1 2 3 Step 5. Step 6. Step 7. Slide the new optical drive into the bay from the front until it snaps into position. Connect the data and power cables to the new disk drive. Reattach the front bezel and computer cover. 28 IdeaCentre K4 SeriesHardware Maintenance Manual - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 35
Note: For this procedure, it helps to lay the computer flat. To replace a graphics card: Step 1. Remove the computer cover. Refer to "Removing the computer cover". Step 2. Follow the below steps to remove a graphics card: If your computer has a Duo-graphics cards installed, follow the steps below - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 36
the chassis, open it, and remove the Duo-graphics cards connector. 4 1 3 2 c. Remove the graphics card by pulling it straight out of the connector. If your computer has a single graphics card installed, follow the steps below to replace it: 30 IdeaCentre K4 SeriesHardware Maintenance - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 37
the Duo-graphics cards connector and reattach the Duo-graphics cards fixing bracket to the chassis. (For models with Duo-graphics cards only) Reattach the computer cover. Replacing the TV-Tuner card Note: For this procedure, it helps to lay the - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 38
To replace the TV-Tuner card: Step 1. Remove the computer cover. Refer to "Removing the computer cover". Step 2. Remove the screw that secures the graphics card latch to the chassis and open it. 1 2 3 the closed position and secure it with the screw. 32 IdeaCentre K4 SeriesHardware Maintenance Manual - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 39
. Refer to "Removing the computer cover". Disconnect the power cables from the connectors on motherboard. 1 Remove the 4 screws that secure the Power supply to the chassis. 2 Slide then lift the Power supply out of chassis. 3 4 4 1 3 2 Step 8. Install the new power supply: a. Line up the holes - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 40
and right view" and "Rear view" for help with locating the various connectors. Remove the computer cover. Refer to "Removing the computer cover". Disconnect the fan power cable from the connector on the motherboard. Remove the 4 screws that secure the microprocessor fan to the heat-sink and lift up - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 41
the microprocessor fan power cable to the connector on the motherboard. Step 9. Reattach the computer cover. Replacing the CPU Note: For this procedure, it helps to lay the computer flat. To replace the CPU: Step 1. Step 2. Step 3. Remove any media (disks, CDs, DVDs, or memory cards) from the - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 42
Step 4. Step 5. Step 6. Step 7. Remove the computer cover. Refer to "Removing the computer cover". Remove the microprocessor fan. Refer to "Replacing the microprocessor fan". Remove the heat-sink. socket pins must be kept as clean as possible. 36 IdeaCentre K4 SeriesHardware Maintenance Manual - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 43
. Step 10. Lower the microprocessor straight down into its socket on the motherboard. Step 11. To secure the microprocessor in the socket, close the microprocessor . Reattach the heat-sink, microprocessor fan, computer cover. Replacing the Wi-Fi card Note: For this procedure, it helps to lay the - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 44
cables to the new Wi-Fi card. Step 9. Reattach the computer cover. Replacing the motherboard Note: For this procedure, it helps to lay the computer flat. To replace the motherboard: Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating system, and - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 45
it with screws. b. Reattach the memory module, Wi-Fi card, CPU, and the heat-sink to the new motherboard. c. Connect the all cables to the new motherboard. d. Attach the graphic card and TV-Tuner card to the new motherboard. Step 16. Reattach the computer cover. Chapter 8. Replacing hardware 39 - Lenovo IdeaCentre K450 | IdeaCentre K4 Series Hardware Maintenance Manual - Page 46
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of the computer such as the system power supply, processor, hard disk drives, and some monitors. Advanced configuration and power interface (ACPI) BIOS As this computer has an ACPI BIOS system, the operating system is allowed to control the power management features of the computer and the
IdeaCentre K4 Series
Hardware Maintenance Manual
Machine Types: 10120/90A0 [K450 ES]; 10121/90A1 [K450 Non-ES]