Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

slightly different mains power supply ??

  • 01-09-2008 10:04am
    #1
    bealbocht
    Registered Users, Registered Users 2 Posts: 371 ✭✭


    my laptop..(now my old laptop) died, and had to get a new one.. went for the same manufacture again.. and have noticed (amazingly for them) the old power supply fits the new one.

    The both have an "output of 19.5v"(volts ??) , but the old one has 4.6A (not looking at it right now) and the new one has 3.34A (amps I assume ??? ).

    It be dead handy having a power supply in work and at home, how dodgy is it to run the laptop on the old power supply...


Comments

  • #2
    MunsterCycling
    Registered Users, Registered Users 2 Posts: 4,864 ✭✭✭MunsterCycling


    No prob, it's just handy for you the amp draw on the old laptop was bigger than the new one, use away no probs will ensue.

    MC


  • #3
    bealbocht
    Registered Users, Registered Users 2 Posts: 371 ✭✭bealbocht


    cool, thanks v much


  • #4
    biologikal
    Closed Accounts Posts: 371 ✭✭biologikal


    MunsterCycling wrote: »
    No prob, it's just handy for you the amp draw on the old laptop was bigger than the new one, use away no probs will ensue.

    MC

    Good to know.

    What if it was the other way around - bad for power supply or laptop? Or both? I'm guessing as long as the voltage is the same, laptop should be ok, but power supply might burn out quicker drawing more amps?


  • #5
    MunsterCycling
    Registered Users, Registered Users 2 Posts: 4,864 ✭✭✭MunsterCycling


    If it would work at all, not a good idea to do the reverse of the OP as you have said the PSU would be under too much stress and possibly burn out.

    MC


  • #6
    Soundman
    Registered Users, Registered Users 2 Posts: 2,593 ✭✭✭Soundman


    In the case of the reverse, the PSU would indeed burn out over a short time period. The main thing would be it would get insanely hot and you would notice that the laptop might be more sluggish than normal as it would be trying to get enough power to work but not getting it.


  • Advertisement
  • #7
    Overheal
    Registered Users, Registered Users 2 Posts: 86,729 ✭✭✭✭Overheal


    I can tell you from first hand experience a slightly higher amperage could cause permanent damage.

    Got one that was only up by about 300mA and it was enough to feck up the touchpad and electrocute me when my skin brushed off the metal. No permanent damage though, thank god. But it wouldnt take too much to fry electronics. Cant tell you how many routers ive seen get killed because they have a generic plug, then some kid tries to use the plug from his lava lamp and then its just gone.


Advertisement