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    Can a 170W adapter hurt my y410p?

    Discussion in 'Lenovo' started by DRM842, Jun 9, 2014.

  1. DRM842

    DRM842 Notebook Guru

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    it came with a 120w adapter which is what i've been using but i've ordered a 170w adapter as a backup and to use when i'm running 2 gt755m in sli-mode.
     
    DRM842, Jun 9, 2014
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  2. octiceps

    octiceps Nimrod

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    Of course not. If anything, the 120W brick would be inadequate for SLI and cause battery drain and throttling, perhaps even system shutdown, in power-hungry applications.
     
    octiceps, Jun 9, 2014
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  3. DRM842

    DRM842 Notebook Guru

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    Thanks for the reassurance!!
     
    DRM842, Jun 10, 2014
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  4. hawkeye62

    hawkeye62 Notebook Evangelist

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    The wattage won't damage your device as long as the voltage and amps match your lower wattage adapter.

    Good luck, Jim
     
    hawkeye62, Jun 12, 2014
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  5. Cellular-Decay

    Cellular-Decay Notebook Evangelist

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    Close, but not quite accurate. The voltage must be the same, and the amps should be at least what your old adapter had. More is fine (even desirable for SLI), less is not.

    The amps on a 170W adapter will not match a 120W adapter, because it is a higher power adapter. Watts is volts times amps, so if the voltage is that same, higher wattage = higher amps. As I said above, higher amps is fine. As long as the voltage is the same, the device will only draw as much amps as it needs. So it doesn't matter if the adapter is 120W, 170W or 10,000W.

    You can use the 170W adapter all the time if you want. Even if you are not running the 2nd GPU.
     
    Cellular-Decay, Jun 12, 2014
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  6. hawkeye62

    hawkeye62 Notebook Evangelist

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    Yeah, I agree. But, I still worry about drawing too many amps.

    Regards, Jim
     
    hawkeye62, Jun 13, 2014
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