Lenovo H4 Series Hardware Maintenance Manual V2.0
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... the hard disk drive 45 Replacing an optical drive 46 Replacing a PCIE 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... the front of the computer 35 Locating connectors on the rear of the computer 36 Identifying parts on the system board 38 Chapter 9. Hardware Maintenance Manual Exiting from the Setup Utility program 27 Chapter 7.
... the hard disk drive 45 Replacing an optical drive 46 Replacing a PCIE 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... the front of the computer 35 Locating connectors on the rear of the computer 36 Identifying parts on the system board 38 Chapter 9. Hardware Maintenance Manual Exiting from the Setup Utility program 27 Chapter 7.
Lenovo H4 Series Hardware Maintenance Manual V2.0
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...) video adapter. This will reveal the malfunctioning card. 8 beeps If the system video adapter is causing the malfunction. Hardware Maintenance Manual Beep symptoms Beep symptoms are tones or a series of tones separated by a malfunctioning Processor error add-in card. The following tables...beeps Parity error in base memory (first 64KB block) 3 beeps Base memory read/write test error 4 beeps Fatal error indicating a serious Motherboard timer not operational problem with the system. switch to protected mode) • If beep codes are not generated when all hope, eliminate ...
...) video adapter. This will reveal the malfunctioning card. 8 beeps If the system video adapter is causing the malfunction. Hardware Maintenance Manual Beep symptoms Beep symptoms are tones or a series of tones separated by a malfunctioning Processor error add-in card. The following tables...beeps Parity error in base memory (first 64KB block) 3 beeps Base memory read/write test error 4 beeps Fatal error indicating a serious Motherboard timer not operational problem with the system. switch to protected mode) • If beep codes are not generated when all hope, eliminate ...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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Hardware Maintenance Manual Voltage selection switch (selected models only) Power connector PS/2 keyboard connector PS/2 mouse connector HDMI connector (selected models only) On-board VGA connector (selected models ... adapter connector (Some models are equipped with a WIFI card or TV tuner card) Identifying parts on the system board The system board (sometimes called the motherboard) is the main circuit board in your computer.). 38 It provides basic computer functions and supports a variety of below system boards was preinstalled on the...
Hardware Maintenance Manual Voltage selection switch (selected models only) Power connector PS/2 keyboard connector PS/2 mouse connector HDMI connector (selected models only) On-board VGA connector (selected models ... adapter connector (Some models are equipped with a WIFI card or TV tuner card) Identifying parts on the system board The system board (sometimes called the motherboard) is the main circuit board in your computer.). 38 It provides basic computer functions and supports a variety of below system boards was preinstalled on the...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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... computer cover. Install all cables to the new motherboard. 11. Refer to the Support Web site at: http://consumersupport.lenovo.com To replace the system fan assembly: 1. Locate the system fan assembly. Align then insert the new motherboard and screw it in the Hardware Maintenance Manual (HMM) for the computer. Replacing the system fan...
... computer cover. Install all cables to the new motherboard. 11. Refer to the Support Web site at: http://consumersupport.lenovo.com To replace the system fan assembly: 1. Locate the system fan assembly. Align then insert the new motherboard and screw it in the Hardware Maintenance Manual (HMM) for the computer. Replacing the system fan...