Lenovo H420 Support Question
Lenovo H420 Support Question
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Question posted by ColCechemar on May 16th, 2014
What Power Supply Is In The Lenovo Ideacentre H420 Desktopl?
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Related Lenovo H420 Manual Pages
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 4
... 6 External devices 6 Batteries 6 Heat and product ventilation 7 Operating environment 8 Electrical current safety information 9 Lithium battery notice 10 Modem safety information 10 Laser compliance statement 11 Power supply statement 12 Products with television tuner options installed 12 Note to CATV system installer 12 Example of antenna grounding 13 Data safety 14 Cleaning and...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 7
... close attention to the product when it is not manufactured for or by Lenovo, stop using that product until you can speak to the Customer Support Center for further guidance.
• Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are cracked, broken, or damaged.
• Signs of overheating, smoke, sparks...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 10
... outlet until you have verified that you are rated to the computer. Do not use any power adapter that country or region.
Extension cords and related devices
Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that the voltage-selection switch is designed to operate only at the ac input or...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 13
...extreme conditions.
If liquid is 10°C-35°C (50°F-95°F) with your desktop computer: • Keep the cover closed whenever the computer is plugged in. • ...-desktop air filtration devices. Operating environment
The optimal environment in the bezel. Do not eat or smoke over your computer within 2 feet of the computer including heat sink inlet fins, power supply vents...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 17
... proper grounding and, in particular, specifies that follow guidelines similar to those that the cable ground shall be installed in North America. Power supply statement
Never remove the cover on a power supply or any component that are intended to be connected to the grounding system of the building, as close as possible to the...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 22
... with fine grounded cable to operate within the scope of environmental specifications and:
Adaptability index for product operation environment
Adaptability for power supply
220V ± 22V, 50Hz ± 1Hz (Only For China Desktop)
90V - 264V, 50/60Hz (Adaptive Voltage Positioning)
90V - 264V, 50Hz ± 1Hz (With Voltage-selection Switch )
Operating temperature
10˚...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 24
... 19 Warning Must fully remove the dustproof shield (if provided) to facilitate the heating eradiation and ventilation when the computer is running or before the power supply of the computer is completely switched off.
6.
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 2
...the CPU 50 Replacing the motherboard 53 Replacing the system fan assembly 54 Replacing the power supply 56 Replacing the keyboard 57 Replacing the mouse 58 Replacing the external speaker 59 Completing...10. Statement 63
ii Symptom-to-FRU Index 28
Hard disk drive boot error 28 Power Supply Problems 29 Beep symptoms 30 POST error codes 31 Undetermined problems 33
Chapter 8. Hardware ...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 3
... "ACHTUNG" oder "VORSICHT" in this manual is intended only for trained servicers who are also available at: http://consumersupport.lenovo.com. About this manual
This manual contains service and reference information for Lenovo IdeaCentre K computers listed on the cover.
Important Safety Information
Be sure to read all caution and danger statements in this...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 5
...number that is automatically shipped by the distribution center at the time of order.
RoHS compliant Lenovo IdeaCentre K parts have unique FRU part numbers. Products marketed before June 2006 Products marketed after ...Can sub to RoHS
RoHS
Must be ready to these products and any product Lenovo produces containing RoHS compliant parts.
Chapter 1.
Products sold in the system HMM or...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 7
... solvents, or working in the installation and configuration procedures. If an electrical accident occurs, you start to work alone under hazardous conditions or near power supplies - To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before : - If you cannot unplug it, ask the customer to...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 8
... with the power-off the power, if necessary. - do not become a victim yourself. - Remember: Another person must be there to switch off controls, is conductive; Power supply units - ...to cause electrical shock. Examples
of maintenance information. Ensure that it has been powered-off power. - Stand on suitable rubber mats (obtained locally, if necessary) to get...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 9
... guide.
Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with the power off the computer.
Check the power cord for damage (loose,... required safety items installed to measure third-wire ground continuity for any alterations. 6. Power-off , and the power cord disconnected. Check exterior covers for :
a. Check for worn, frayed, or...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 13
.... To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
2 1
CAUTION: Do not place any object weighing more than 82 kg (180 lbs.) on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 31
...Action
Check the following for proper
Reseat connectors
installation.
•• Power Cord
•• On/Off Switch connector
•• On/Off Switch Power Supply
connector
•• System Board Power Supply
connectors
•• Microprocessor(s) connection
Check the power cord for
Power-on
the failing hard disk drive. 2. Using the operating systems
programs...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 37
Chapter 8. Locations Microprocessor fan and heatsink Memory modules PCI Express adapter card PCI Express adapter connectors Power supply System fan Optical drive Hard disk drive
Locating connectors on the front of the computer
The following illustration shows the location of connectors on the front of the computer.
35
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 58
... to "Removing the computer cover". 2. Refer to the "Completing the installation".
56 Align then insert the new Power supply and screw it in place. 7. Reconnect all of the cables that secure the power supply to the system board.. 3. Refer to the system fan connector on the tips of the chassis. 5. Remove the 4 screws that...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 63
...
Being an ACPI BIOS system, the operating system is allowed to control the power management features of the computer such as the system power supply, processor, hard disk drives, and some monitors. Automatic Power-On features
The Automatic Power-On features within the Power Management menu allow you to Enabled, the computer will turn on the...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 64
... ACPI BIOS system, the operating system is allowed to control the power management features of the computer such as the system power supply, processor, hard disk drives, and some monitors. Not all operating systems support ACPI BIOS mode. Power management
Power management reduces the power consumption of certain components of the computer and the setting for...
Lenovo H4 Series Hardware Replacement Guide V1.0 - Page 7
... the computer. Chapter Locations
This chapter provides illustrations to help you to "Removing the computer cover".
Microprocessor fan and heatsink Memory modules
Hardware Replacement Guide
Power supply System fan
31045292_H4_HRG_EN_V1.0.indd 4
2010.9.19 11:11:08 AM To remove the computer cover, refer to locate the various components in your computer.
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