Lenovo H4 Series Hardware Maintenance Manual V2.0
Page 2
... 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 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
Page 32
... video add-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. Before declaring the motherboard beyond all other expansion cards 6 beeps are absent, one at a time until the problem happens again. switch to protected mode...
... video add-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. Before declaring the motherboard beyond all other expansion cards 6 beeps are absent, one at a time until the problem happens again. switch to protected mode...
Lenovo H4 Series Hardware Maintenance Manual V2.0
Page 33
... the first error message, the other expansion cards Cache memory test failed are absent, one at a time until the problem happens again. Before declaring the motherboard beyond all expansion 10 beeps cards except the video adapter. Insert the cards back into the system one of the system and some basic system...
... the first error message, the other expansion cards Cache memory test failed are absent, one at a time until the problem happens again. Before declaring the motherboard beyond all expansion 10 beeps cards except the video adapter. Insert the cards back into the system one of the system and some basic system...
Lenovo H4 Series Hardware Maintenance Manual V2.0
Page 40
... computer. It provides basic computer functions and supports a variety of below system boards was preinstalled on the system board The system board (sometimes called the motherboard) is the main circuit board in connector PCI Express x16 graphics adapter connector (Some models are equipped with a graphics card) PCI Express x1 adapter connector...
... computer. It provides basic computer functions and supports a variety of below system boards was preinstalled on the system board The system board (sometimes called the motherboard) is the main circuit board in connector PCI Express x16 graphics adapter connector (Some models are equipped with a graphics card) PCI Express x1 adapter connector...
Lenovo H4 Series Hardware Maintenance Manual V2.0
Page 55
...cover. Refer to the "Completing the installation". Remove all the cables from the motherboard. 53 Refer to "Replacing the CPU". 6. Refer to the chassis. 7. Remove the 6 screws that secure the motherboard to "Replacing a memory module". 4. To secure the microprocessor in the socket...11. Remove the heatsink assembly. Remove the CPU. Fit the heatsink assembly back onto the system board. 12. Replacing the motherboard To replace the motherboard: 1. Remove the PCIE adapters. Refer to the system board. 13. Each drop of the microprocessor. Refer to "Replacing a...
...cover. Refer to the "Completing the installation". Remove all the cables from the motherboard. 53 Refer to "Replacing the CPU". 6. Refer to the chassis. 7. Remove the 6 screws that secure the motherboard to "Replacing a memory module". 4. To secure the microprocessor in the socket...11. Remove the heatsink assembly. Remove the CPU. Fit the heatsink assembly back onto the system board. 12. Replacing the motherboard To replace the motherboard: 1. Remove the PCIE adapters. Refer to the system board. 13. Each drop of the microprocessor. Refer to "Replacing a...
Lenovo H4 Series Hardware Maintenance Manual V2.0
Page 56
.... 9. Remove the computer cover. Slide and then lift the motherboard out of the Safety and Warranty Guide or HMM, go to the "Completing the installation". Refer to the Support Web site at: http://consumersupport.lenovo.com To replace the system fan assembly: 1. Install all cables... to the new motherboard. 11. Refer to "Removing the computer cover". 2. Hardware Maintenance Manual 8. Align then insert the ...
.... 9. Remove the computer cover. Slide and then lift the motherboard out of the Safety and Warranty Guide or HMM, go to the "Completing the installation". Refer to the Support Web site at: http://consumersupport.lenovo.com To replace the system fan assembly: 1. Install all cables... to the new motherboard. 11. Refer to "Removing the computer cover". 2. Hardware Maintenance Manual 8. Align then insert the ...
Lenovo H4 Series Hardware Replacement Guide V1.0
Page 11
... AM It provides basic computer functions and supports a variety of below system boards was preinstalled on the system board The system board (sometimes called the motherboard) is the main circuit board in connector PCI Express x16 graphics adapter connector (Some models are equipped with a graphic card) PCI Express x1 adapter connector...
... AM It provides basic computer functions and supports a variety of below system boards was preinstalled on the system board The system board (sometimes called the motherboard) is the main circuit board in connector PCI Express x16 graphics adapter connector (Some models are equipped with a graphic card) PCI Express x1 adapter connector...