Lenovo D400 Desktop IdeaCentre- Manuals

5 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 any heavy object: 1. Ensure yo...

6 Chapter 2. Safety information Remember: Metal objects are good electrical conductors. • Wear safety glasses when you are: hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes. • After service, reins...

8 Chapter 2. Safety information Safety inspection guide The intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these products. Each machine, as it was designed and built, had required safety items installed to protect users and service personnel from inj...

9 Hardware Maintenance Manual Handling electrostatic discharge-sensitive devices Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect a...

10 Chapter 2. Safety information Safety notices The caution and danger safety notices in this section are provided in the the language of English. DANGER:Electrical current from power, telephone and communication cables is hazardous.To avoid a shock hazard:• Do not connect or disconnect any cables o...

13 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. Type Lenovo IdeaCentre Q500 Series This section lists the physical specifications. Environment Air temperatur...

15 General error messages appear if a problem or conflict is found by an application program, the operating system, or both. For an explanation of these messages, refer to the information supplied with that software package. Use the following procedure to help determine the cause of the problem:1. P...

17 Hardware Maintenance Manual Checkout procedure The checkout procedure is the sequence of tasks that you should follow to diagnose a problem in the home center. Before performing the checkout procedure for diagnosing hardware problems, review the following information:• Read the safety information...

19 Hardware Maintenance Manual Problem determination tips Due to the variety of hardware and software combinations that can be encountered, use the following information to assist you in problem determination. If possible, have this information available when requesting assistance from Service Suppo...

21 The Setup Utility program is used to view and change the configuration settings for your computer, regardless of which operating system you are using. However, the operating-system settings might override any similar setting in the Setup Utility program. Starting the Setup Utility program To star...

22 Chapter 5. Using the Setup Utility 6. Locate the JP3 Debug/User mode jumper on the system board. 7. Close the jumper to enable system for debug mode. 8. Connect the power cable to the rear panel. 9. Connect a USB keyboard to the debug board. 10. Connect a monitor to the debug board. 11. Restart t...

23 Hardware Maintenance Manual Serial ATA Enables or disables the onboard SATA ports. The default is set to Enabled. To enable the onboard SATA ports: 1. Start the Setup Utility program. See “Starting the Setup Utility program”. 2. From the Setup Utility program menu, select Advanced > Advanced C...

26 Chapter 5. Symptom-to-FRU index Power supply problems If you suspect a power problem, use the following procedures. BIOS crisis recovery When the home center’s BIOS fails or image crashes, the system status indicator blinks blue and purple. You can use the bootable USB flash device to recover the...

27 Hardware Maintenance Manual POST error codes Each time you power-on the home center, it performs a series of tests that check the operation of the home center and some options. This series of tests is called the Power-On Self-Test, or POST. POST does the following operations.• Checks some basic s...

30 Chapter 5. Symptom-to-FRU index Undetermined problems If the diagnostic tests did not diagnose the failure or if the home center is inoperative, use the information in this section. If you suspect that a software problem is causing failures, see the User Guide. Damaged data in CMOS memory can cau...

33 General information Pre-disassembly instructions Before proceeding with the disassembly procedure, make sure that you do the following:1. Power-off the home center and all external devices.2. Unplug all cables and power cords.3. Place the home center on a flat, stable surface. Attention Do not re...

34 Chapter 7. Replacing hardware Replacing the hard disk drive To replace the hard disk drive 1. Open the door of the home center. 2. Remove the HDD carrier by pressing the HDD carrier latch.

37 Hardware Maintenance Manual Removing the cover To remove the cover 1. Read the safety information in the User Guide document. 2. Unplug all power cords from electrical outlets. 3. Disconnect all cables attached to the home center. This includes power cords, input/output (I/O) cables, and any othe...

38 Chapter 7. Replacing hardware Replacing the front bezel To replace the front bezel 1. Remove the cover. Refer to “Removing the cover”.2. Slightly press the right-side retention tabs and gently push in to release the bezel from the home center, as shown. 3. Do the same on the other side.

40 Chapter 7. Replacing hardware Removing the fan To replace the fan 1. Remove the cover. Refer to “Removing the cover”.2. Disconnect the fan cable attached to the hard disk drive backplane. Attention Do not remove the cover or attempt any repair before reading the “Important safety information” in ...

42 Chapter 7. Replacing hardware Replacing the memory module To replace the memory module 1. Remove the cover. Refer to “Removing the cover”.2. Remove the front bezel. Refer to “Replacing the front bezel”.3. Slide the system board tray out of the home center chassis. (1) Insert your thumb into the t...

44 Chapter 7. Replacing hardware Replacing the power supply To replace the power supply 1. Remove the cover. Refer to “Removing the cover”.2. Remove the front bezel. Refer to “Replacing the front bezel”.3. Untie the cable ties, as shown.

47 Hardware Maintenance Manual Replacing the system board To replace the system board 1. Remove the cover. Refer to “Removing the cover”.2. Remove the front bezel. Refer to “Replacing the front bezel”.3. Remove the fan. Refer to “Removing the fan”.4. Remove the memory module. Refer to “Replacing the...

50 Chapter 7. Replacing hardware Replacing the power cord To replace the power cord 1. Power-off the home center and all external devices.2. Disconnect the failing power cord from the home center and connect the new power cord to the same connector. 3. Refer to “Completing the installation”.

51 Hardware Maintenance Manual Completing the installation After replacing the parts, you need to install the cover and reconnect cables, including wired internet and power cords. 1. Ensure that all components have been reassembled correctly and that no tools or loose screws are left inside the home...

55 This chapter provides additional information that the service representative might find helpful. Power management Power management reduces the power consumption of certain components of the computer such as the system power supply, processor, hard disk drives, USB keyboard or mouse, and some moni...

57 Thanks for using Lenovo products.Carefully read all documents shipped with your computer before you install and use the product for the first time for better use of it. If you fail to operate the product according to instructions and requirements in all the manuals included with your computer, or...