Lenovo H4 Series Hardware Maintenance Manual V2.0
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Statement 63 ii Hardware Maintenance Manual Exiting from the Setup Utility program 27 Chapter 7. Replacing hardware 41 Removing the computer cover 41 Removing and replacing the front bezel 42 Replacing a memory ... 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...
Statement 63 ii Hardware Maintenance Manual Exiting from the Setup Utility program 27 Chapter 7. Replacing hardware 41 Removing the computer cover 41 Removing and replacing the front bezel 42 Replacing a memory ... 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...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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...all hope, eliminate the possibility 5 beeps of the add-in card, replace or reseat the adapter) video adapter. Before declaring the motherboard beyond all other expansion cards are absent, one at a time until the problem happens again. switch to protected mode) • If...block) 3 beeps Base memory read/write test error 4 beeps Fatal error indicating a serious Motherboard timer not operational problem with known good modules. 2 beeps Parity error in card. Hardware Maintenance Manual Beep symptoms Beep symptoms are tones or a series of the system board, the board may...
...all hope, eliminate the possibility 5 beeps of the add-in card, replace or reseat the adapter) video adapter. Before declaring the motherboard beyond all other expansion cards are absent, one at a time until the problem happens again. switch to protected mode) • If...block) 3 beeps Base memory read/write test error 4 beeps Fatal error indicating a serious Motherboard timer not operational problem with known good modules. 2 beeps Parity error in card. Hardware Maintenance Manual Beep symptoms Beep symptoms are tones or a series of the system board, the board may...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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... 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 Hardware Maintenance Manual Voltage selection switch (selected models only) Power connector PS/2 keyboard connector PS/2 mouse connector HDMI connector (selected models only...
... 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 Hardware Maintenance Manual Voltage selection switch (selected models only) Power connector PS/2 keyboard connector PS/2 mouse connector HDMI connector (selected models only...
Lenovo H4 Series Hardware Maintenance Manual V2.0
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.... 12. To obtain copies of the chassis. 9. Locate the system fan assembly. Align then insert the new motherboard and screw it in the Hardware Maintenance Manual (HMM) for the computer. Slide and then lift the motherboard out of the Safety and Warranty Guide or HMM, go to "Removing the computer cover". 2. Refer to... information" in the Safety and Warranty Guide that was included with your computer or in . 10. Refer to the Support Web site at: http://consumersupport.lenovo.com To replace the system fan assembly: 1.
.... 12. To obtain copies of the chassis. 9. Locate the system fan assembly. Align then insert the new motherboard and screw it in the Hardware Maintenance Manual (HMM) for the computer. Slide and then lift the motherboard out of the Safety and Warranty Guide or HMM, go to "Removing the computer cover". 2. Refer to... information" in the Safety and Warranty Guide that was included with your computer or in . 10. Refer to the Support Web site at: http://consumersupport.lenovo.com To replace the system fan assembly: 1.