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  1. #1
    DavyHume is offline Junior Member 510 points
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    Laptop protection using UPS?

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    I know many have suggested using UPS(unlimited power supply) to protect your laptop BUT just how do you connect it to a 220V input? Do you connected after a step down transformer? Most UPS sold in the states are 110V and I'm certain it will blow if connected directly to 220V. Any thoughts?

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    DEQNY85's Avatar
    DEQNY85 is offline Elite Member
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    If your room is 220v, you buy a small transformer that will bring it down to 110v and you connect the power surge to the tranformer
    Ross Graduate- 2012
    PGY1- Surgery Prelim

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    alzaeem is offline Junior Member 511 points
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    ....if you look up the at the back of your laptop power supply..."the block"...there's a lable that says 100-240v.....which in other words that there's no need for a transformer....power surge protection is a must.

    Hope that helps!

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    DavyHume is offline Junior Member 510 points
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    Quote Originally Posted by alzaeem View Post
    . there's no need for a transformer....power surge protection is a must
    i agree....BUT the problem is that UPS or Surge protector only takes 110 input (unless if i want to use a 220 power surge protector ) therefore it seems that they must be connected via a transformer...
    which brings another question...is 220/50HZ any better than 110/50HZ for a laptop? since the transformer can only regulate voltage and not frequency...

    sorry for a these qs but I've just heard too much horror stories of harddrive breakdowns....
    Last edited by DavyHume; 12-05-2008 at 02:29 PM.

  5. #5
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    medic300107 is offline Supermedic Moderator 10497 points
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    Quote Originally Posted by DavyHume View Post
    i agree....BUT the problem is that UPS or Surge protector only takes 110 input (unless if i want to use a 220 power surge protector ) therefore it seems that they must be connected via a transformer...
    which brings another question...is 220/50HZ any better than 110/50HZ for a laptop? since the transformer can only regulate voltage and not frequency...

    sorry for a these qs but I've just heard too much horror stories of harddrive breakdowns....
    both the same frequency, at least from your post

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    jar22 is offline Member 510 points
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    Quote Originally Posted by DavyHume View Post
    i agree....BUT the problem is that UPS or Surge protector only takes 110 input (unless if i want to use a 220 power surge protector ) therefore it seems that they must be connected via a transformer...
    which brings another question...is 220/50HZ any better than 110/50HZ for a laptop? since the transformer can only regulate voltage and not frequency...

    sorry for a these qs but I've just heard too much horror stories of harddrive breakdowns....
    if the back of the adaptor of your laptop says input: 110-240V, you dont have any problem. as for the frequency, most laptops take both 50 and 60HZ.

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    djnitin's Avatar
    djnitin is offline Senior Member 510 points
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    I had trouble with my power supply, which sucked because it was heavy as hell and a pain to get to the island. For some reason it didn't work with a bunch of different transformers. Make sure it is compatible.

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    DavyHume is offline Junior Member 510 points
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    Quote Originally Posted by djnitin View Post
    I had trouble with my power supply, which sucked because it was heavy as hell and a pain to get to the island. For some reason it didn't work with a bunch of different transformers. Make sure it is compatible.
    How did you resolved the problem? Did you end up using a 220v Eurotype UPS and connect a transformer on it?

    I figure that the UPS from U.S can only operate on 60hz so Dominica's 50HZ would automatically cause error light flashing even if the voltage input is already step down to 110V.

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    ginuwine112 is offline Junior Member 510 points
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    omg bro, relax with the voltage :P

    as my middle school teacher used to say, "don't sweat the small stuff"!!!
    and it surely applies to this thread!!!

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    djnitin's Avatar
    djnitin is offline Senior Member 510 points
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    Quote Originally Posted by DavyHume View Post
    How did you resolved the problem? Did you end up using a 220v Eurotype UPS and connect a transformer on it?

    I figure that the UPS from U.S can only operate on 60hz so Dominica's 50HZ would automatically cause error light flashing even if the voltage input is already step down to 110V.
    I dunno what was wrong. It didn't even work at school, so I gave it away and bought a $10 surge protector instead.

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