Lenovo H4 Series Hardware Maintenance Manual V2.0
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... adapter 47 Replacing the heatsink assembly 48 Replacing 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 the installation 59 Chapter 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. Additional Service Information (Type G41)......61...
... adapter 47 Replacing the heatsink assembly 48 Replacing 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 the installation 59 Chapter 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. Additional Service Information (Type G41)......61...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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...glasses when you open the server/workstation covers, unless instructed otherwise in the installation and configuration procedures. Some hand tools have , near power supplies - If an electrical accident occurs, you when working in the off (EPO) switch, disconnecting switch, or electrical outlet. Important:...hazardous conditions or near equipment that has hazardous voltages. •• Disconnect all power before returning the machine to lock the wall box in any safety device that supplies power to the machine and to the customer. Removing or installing main units •...
...glasses when you open the server/workstation covers, unless instructed otherwise in the installation and configuration procedures. Some hand tools have , near power supplies - If an electrical accident occurs, you when working in the off (EPO) switch, disconnecting switch, or electrical outlet. Important:...hazardous conditions or near equipment that has hazardous voltages. •• Disconnect all power before returning the machine to lock the wall box in any safety device that supplies power to the machine and to the customer. Removing or installing main units •...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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...removed from grounds such as metal floor strips and machine frames. Examples of a plastic dental mirror. Power supply units - Send another person, familiar with the power on suitable rubber mats (obtained locally, if necessary) to insulate you from their normal operating places in... the special safety precautions when you work on electrical equipment; keep the other hand in a machine: - Ensure that it has been powered-off power. - do not become a victim yourself. - Hardware Maintenance Manual •• If you need to cause electrical shock. Remember: There...
...removed from grounds such as metal floor strips and machine frames. Examples of a plastic dental mirror. Power supply units - Send another person, familiar with the power on suitable rubber mats (obtained locally, if necessary) to insulate you from their normal operating places in... the special safety precautions when you work on electrical equipment; keep the other hand in a machine: - Ensure that it has been powered-off power. - do not become a victim yourself. - Hardware Maintenance Manual •• If you need to cause electrical shock. Remember: There...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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... in the parts listings. Begin the checks with . 7 Disconnect the power cord. 3. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with the power off the computer. Chapter 2. Safety information Safety inspection guide The intent ...and the safety hazards they present: •• Electrical hazards, especially primary power (primary voltage on these products. Check exterior covers for any alterations. 6. Power-off , and the power cord disconnected. Check the power cord for worn, frayed, or pinched cables. 8. A third-wire ground ...
... in the parts listings. Begin the checks with . 7 Disconnect the power cord. 3. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with the power off the computer. Chapter 2. Safety information Safety inspection guide The intent ...and the safety hazards they present: •• Electrical hazards, especially primary power (primary voltage on these products. Check exterior covers for any alterations. 6. Power-off , and the power cord disconnected. Check the power cord for worn, frayed, or pinched cables. 8. A third-wire ground ...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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CAUTION: The power control button on the device and the power switch on top of rack-mounted devices. 11 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. Safety information CAUTION: Use safe practices when lifting. Chapter 2. The device also might have more than one power cord.
CAUTION: The power control button on the device and the power switch on top of rack-mounted devices. 11 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. Safety information CAUTION: Use safe practices when lifting. Chapter 2. The device also might have more than one power cord.
Lenovo H4 Series Hardware Maintenance Manual V2.0
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...code display) when no errors are servicing might cause false errors and unnecessary replacement of the problem: 1. Start the Setup Utility program. Power-on the system. For an explanation of BIOS is installed on all display controls to boot up in the computer you select an ... POST. • To enable beep, memory count, and checkpoint code display when a successful POST occurs, do the following procedure to the information supplied with that the latest level of these messages, refer to help determine the cause of the system board. Select Start Options. 3. Use the following :...
...code display) when no errors are servicing might cause false errors and unnecessary replacement of the problem: 1. Start the Setup Utility program. Power-on the system. For an explanation of BIOS is installed on all display controls to boot up in the computer you select an ... POST. • To enable beep, memory count, and checkpoint code display when a successful POST occurs, do the following procedure to the information supplied with that the latest level of these messages, refer to help determine the cause of the system board. Select Start Options. 3. Use the following :...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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... the data on Switch continuity. 29 Power Cord Check the power-on switch for continuity. Power Supply Problems If you suspect a power problem, use 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...
... the data on Switch continuity. 29 Power Cord Check the power-on switch for continuity. Power Supply Problems If you suspect a power problem, use 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...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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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 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 Chapter 8.
Lenovo H4 Series Hardware Maintenance Manual V2.0
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... the system fan connector on the tips of the rubber mounts until the fan assembly is in . 6. Align then insert the new Power supply and screw it in place. 7. Pull on the system board. 8. Remove the computer cover. Connect the system fan assembly cable to the chassis. 4. Refer to "...
... the system fan connector on the tips of the rubber mounts until the fan assembly is in . 6. Align then insert the new Power supply and screw it in place. 7. Pull on the system board. 8. Remove the computer cover. Connect the system fan assembly cable to the chassis. 4. Refer to "...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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...BIOS mode. Automatic configuration and power interface (ACPI) BIOS Being an ACPI BIOS system, the operating system is ignored. Power management Power management reduces the power consumption of certain components of the computer and the setting for Advanced Power Management (APM) BIOS mode ... that the service representative might find helpful. Automatic Power-On features The Automatic Power-On features within the Power Management menu allow you to control the power management features of the computer such as the system power supply, processor, hard disk drives, and some monitors....
...BIOS mode. Automatic configuration and power interface (ACPI) BIOS Being an ACPI BIOS system, the operating system is ignored. Power management Power management reduces the power consumption of certain components of the computer and the setting for Advanced Power Management (APM) BIOS mode ... that the service representative might find helpful. Automatic Power-On features The Automatic Power-On features within the Power Management menu allow you to control the power management features of the computer such as the system power supply, processor, hard disk drives, and some monitors....
Lenovo H4 Series Hardware Maintenance Manual V2.0
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... is allowed to enable and disable features that the service representative might find helpful. Power Management features The Power Management features within the Power menu allow you to control the power management features of the computer such as the system power supply, processor, hard disk drives, and some monitors. Hardware Maintenance Manual Additional Service Information (Type...
... is allowed to enable and disable features that the service representative might find helpful. Power Management features The Power Management features within the Power menu allow you to control the power management features of the computer such as the system power supply, processor, hard disk drives, and some monitors. Hardware Maintenance Manual Additional Service Information (Type...
Lenovo H4 Series Hardware Replacement Guide V3.0
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Power button Optical Drive (Selected models only) Memory card reader (Selected models only) USB connectors (2) Headphone connector Microphone connector 6 Hardware Replacement Guide 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.
Power button Optical Drive (Selected models only) Memory card reader (Selected models only) USB connectors (2) Headphone connector Microphone connector 6 Hardware Replacement Guide 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.
Lenovo H4 Series Hardware Replacement Guide V3.0
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It provides basic computer functions and supports a variety of parts on the system board The system board (sometimes called the motherboard) is the main circuit board in your computer. The following illustrations show the locations of devices that are factory-installed or that you can install later. Identifying parts on the system board. Lenovo H430 Microprocessor and heat sink Microprocessor fan connector Memory connectors (2) Thermal sensor header connector Power connector SATA connectors (4) Power supply fan connector Front panel connector Hardware Replacement Guide 13
It provides basic computer functions and supports a variety of parts on the system board The system board (sometimes called the motherboard) is the main circuit board in your computer. The following illustrations show the locations of devices that are factory-installed or that you can install later. Identifying parts on the system board. Lenovo H430 Microprocessor and heat sink Microprocessor fan connector Memory connectors (2) Thermal sensor header connector Power connector SATA connectors (4) Power supply fan connector Front panel connector Hardware Replacement Guide 13