Lenovo 3000 H305 Desktop User Manual
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Hardware Maintenance Manual
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Chapter 6. Symptom-to-FRU Index.....................................21
Power Supply Problems ................................................................................ 21
Beep symptoms ............................................................................................... 22
POST error codes ............................................................................................. 22
Undetermined problems ............................................................................. 23
Chapter 7. Locations ...............................................................24
Locating components and connectors ................................................. 24
Chapter 8. Replacing hardware ...........................................31
General information ....................................................................................... 31
Removing the computer cover ................................................................ 32
Removing the front bezel ............................................................................ 33
Replacing the optical drive ......................................................................... 34
Replacing a memory module ................................................................... 36
Replacing the hard disk drive .................................................................... 37
Replacing the system fan ............................................................................. 39
Replacing the heat sink ............................................................................... 41
Replacing the CPU ........................................................................................... 42
Replacing the graphic card ......................................................................... 45
Replacing the audio & USB connectors ................................................ 46
Replacing the card reader module .......................................................... 46
Replacing the motherboard ....................................................................... 47
Replacing the Power supply ....................................................................... 48
Replacing the keyboard .............................................................................. 50
Replacing the mouse .................................................................................... 51
Chapter 9. Additional Service Information .......................52
Power management ...................................................................................... 52
Appendix. Statement .............................................................53