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HP TouchSmart tx2-1050ep Notebook PC support

Performance Problems When Using a Non-Standard AC Power Adapter

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Using a power adapter other than the one that came with your notebook PC—such as an adapter designed for use in a car or on an airplane—sometimes causes performance problems, thus causing the notebook PC to display a notification message in the bottom-right corner of the screen.

Understanding power adapter sizes

If the size of the power adapter that you are attempting to use with your notebook PC is:
  • too small – it does not have enough voltage to power your notebook PC. The battery light blinks rapidly 8 times and a notification message that reads The output power of the HP Smart AC Adapter connected to your computer is insufficient. Please connect a higher capacity AC adapter. displays in the bottom-right corner of the screen.
    For example, attempting to use a power adapter designed for an HP Mini PC on a regular size notebook PC may display this error message because it will not deliver sufficient voltage to power the regular size HP Notebook PC. Please use the power adapter that came with your notebook PC. If you need a replacement adapter, please see HP Notebook PCs - Ordering an HP Certified Replacement Part .
  • good enough – it has enough voltage to power your notebook PC, but not enough voltage to deliver expected performance. A notification message that reads The HP Smart AC Adapter connected will power the computer, but at reduced performance. Please connect a higher capacity AC adapter for full performance displays in the bottom-right corner of the screen.
    For example, attempting to use a 65W AC power adapter designed for a high performance notebook works, but performance is not optimal. High performance HP Notebook PCs require a 90W AC power adapter. Please use the power adapter that came with your notebook PC for better performance. If you need a replacement adapter, please see HP Notebook PCs - Ordering an HP Certified Replacement Part .
  • too big – it has more voltage than necessary to power your notebook PC. HP's Over Power protection technology will prevent damage to your notebook PC if you plug a power adapter that has more voltage than necessary to power your notebook PC.
    For example, HP's Over Power protection technology prevents damage to the notebook PC if you plug a 90W power adapter, which is designed for high performance notebook PCs, into a notebook PC that only requires a 65W power adapter.