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

ac/dc adaptor

  • 22-03-2005 9:13pm
    #1
    flodis79
    Registered Users, Registered Users 2 Posts: 1,820 ✭✭✭


    I'm having an AC/DC adaptor where 19V corresponds to 2.4A.
    My laptop needs 19V corresponding to 3.16-3.60A.

    Is it ok to use this adaptor to this computer? It's an HP
    Omnibook XE3.


Comments

  • #2
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    NO, it's not.

    Your laptop requires more power then the supply can provide, it simply won't work and could damage the adapter/laptop.


  • #3
    Fabritzo
    Registered Users, Registered Users 2 Posts: 1,521 ✭✭✭Fabritzo


    It's not recommended to use it but it will work if the laptop isn't on high load, if I was stuck I'd use it for a short period.


  • #4
    Inspector Gadget
    Registered Users, Registered Users 2 Posts: 1,393 ✭✭✭Inspector Gadget


    I don't agree. The laptop will try to draw its three-odd amps irrespective of what kind of PSU it's attached to - the voltage delivered by the PSU will drop in an attempt to match the current requirements (to provide the required current within the power it's rated to deliver - about 45W) which could mean that (unless the PSU burns out/cuts out first) the laptop could be getting as little as 12-odd volts, which is dangerously low for something expecting 19V.

    I strongly suggest you should buy an adaptor that can supply the laptop's power needs (about 19V x 3.6A = 70W (approx.) or higher) at the right voltage before risking such an expensive item.

    Hope this helps,
    Gadget
    P.S.> While it's true that the power saving electronics in every laptop these days will try to keep it from drawing it's maximum rated current, computers tend to run flat-out at boot-time (us users are an impatient lot!), so the point's probably moot as the damage may have already been done before the power saving kit gets a chance to kick in...


Advertisement