How to troubleshoot lenovo laptop

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How to Troubleshoot Lenovo Laptop
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• --gt Verify the power status indicator.The power
  status indicator is illuminated whenever the
  computer is on and is not in standby or
  hibernation mode.
• --gt Check all power connections, and remove any
  power strips and surge protectors to connect the
  AC adapter directly to the AC power outlet.
• --gt Inspect the AC adapter.
• Check for any physical damage to the
  adapter,cables and plugs,and ensure the power
  cable isfirmly attached to the adapter brick and
  the system.
• --gt Verify the AC power source is working by
  attaching another device to the outlet.
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• --gt Remove the ThinkPad system from any docking
  station or port replicator.
• --gt Remove all devices and then test for system
  power with minimal devices attached.
• Disconnect the AC adapter.
• Remove the battery.
• Remove any externally or internally installed
  options and other devices including memory keys,
  keyboards and mice.
• Remove the memory module.
• Remove the Mini PCI and Communications Daughter
  Cards that are customer replaceable, if
  applicable.Refer to your system's hardware
  maintenance manual.
• Remove the Ultrabay devices, usually the
  optical drive, if customer replaceable.
• Remove the hard drive.

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