Power Button

• Customers discovered that on most eMachine laptops, the power button would not turn on the system. This problem was caused by a loose sensor that relays instructions to the computer to turn the system on. The solution or "workaround" for this problem is to replace the power button or make sure that the contacts under the power button have not become detached from the system board.
  
  

AC Adapter

• A malfunctioning AC adapter can cause various eMachine problems, such as faulty boot-up readings, video problems and system interruptions. If the AC adapter is unusually warm or varies in temperature, you should replace the AC adapter immediately. Irregular voltage from the AC adapter can cause the system to not boot up and can burn circuits on the system board.
  
  

Overheating of CPU Unit

• When the cooling unit or "fan" lacks the voltage necessary to cool the CPU chip, resulting in the CPU overheating, it can damage the CPU. CPU overheating problems can be solved by replacing the old fan with a new one and then cleaning the fan wires and circuits weekly with compressed air.
  
  

Power Plug Assembly

• Power plug assemblies inside of eMachine laptops are very fragile and can disconnect from the power housing that provides electricity to the system board or allows inadequate voltage to be sent to devices. The power plug is soldered to the system board and can be re-soldered or replaced with a new power plug assembly.
  
  

Improper BIOS Setup

• The first rule of thumb with any power problem is to check the system basic input/output system (BIOS) in the "setup" portion of the system. If you are unsure of the BIOS setup, there is an option in the BIOS to reset the system. This will set the system power settings back to default. After resetting the system BIOS back to the default setting, restart the eMachine laptop.
  
  

Power Problems in Windows

• There are times when applications accidentally are activated, causing the computer to act differently. A common problem with laptop power problems is the power settings within the Windows system located in the Control Panel. Make sure that these power settings are set to default. An incorrect power setting can cause boot-up conflicts in Windows XP, Vista or Vista 7 with eMachine laptops.