Install UPS (uninterruptable power supply) in Vista

Discussion in 'Windows Vista Hardware' started by AlecR, Aug 4, 2007.

  1. AlecR

    AlecR Guest

    Hi All,

    I am trying to install my UPS in Vista Ultimate. It connects to the com port
    to monitor the power and configure shut down options.
    In XP I could configure it in Control Panel/Power options.

    I've searched Vista and can't find where to configure it.

    Any suggestions welcome.

    AlecR, Aug 4, 2007
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  2. Richard G. Harper, Aug 4, 2007
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  3. AlecR

    Michael Guest

    Vista will not use a com port for a UPS. (XP would)
    You will need to get a UPS that uses USB.
    (been there done that grrrr.)

    Michael, Aug 4, 2007
  4. The UPS will still work till the battery runs down. You just can't control
    the options. In fact, you don't even need to connect the parallel cable at

    I have the same problem. I will live with it till it goes bad and needs to
    be replaced.



    Richard Urban
    Microsoft MVP Windows Shell/User
    (For email, remove the obvious from my address)
    Richard Urban, Aug 4, 2007
  5. AlecR

    AlecR Guest

    Has anyone tried one of those cables that coverts serial to usb. If this is
    plugged into a USB port, would Vista recognise the UPS as being connected to
    AlecR, Aug 5, 2007
  6. AlecR

    Michael Guest

    Tried that with a geek squad UPS from Best buy, did not work for me.
    Appeared to make the USB port on the computer look like a serial port rather
    that make the serial port on the UPS look like a USB port.

    Michael, Aug 5, 2007
  7. AlecR

    koze Guest

    No you have to install the drivers for those (convertor) cables and then you
    do have a serial port which can be addressed.
    koze, Aug 5, 2007
  8. Richard G. Harper, Aug 5, 2007
  9. Oops. I meant the serial cable. <grin>



    Richard Urban
    Microsoft MVP Windows Shell/User
    (For email, remove the obvious from my address)
    Richard Urban, Aug 5, 2007
  10. AlecR

    John Guest

    Not necessarily true.
    My Vista 64 installation recognizes my APC Smart-UPS 1400,
    which uses a serial port, via the APC software just fine.
    John, Aug 6, 2007
  11. AlecR

    Michael Guest

    Interesting, the Serial UPS that I tried had no drivers included with it,
    the user interface depended on the native operating system drivers. (XP had
    native serial and UPS drivers). My current USB UPS (say that five times
    fast) is dependent on the native 'batteries' driver. Just as a point of
    curiosity does your UPS show up in Device Manager? (Mine is labeled
    When checking Microsoft knowledge bases they said Vista did not support

    Perhaps the OP should continue to try, starting at the manufactures site to
    check for Vista drivers as well as user interface.

    (CyberPower battery backup, Vista(32) Home Premium)

    Michael, Aug 6, 2007
  12. AlecR

    Dave Guest

    Yes, the APC software should work.
    It's Vista's built-in power management that won't work with serial ports.
    Dave, Aug 6, 2007
  13. AlecR

    John Guest

    It does not show up in device manager. The APC software installs
    a driver to communicate with the UPS. On XP the first thing the
    driver installation did was to disable XP's built-in UPS feature. I
    don't remember if that happened on Vista but I suspect that it did.
    John, Aug 6, 2007
  14. AlecR

    w_tom Guest

    UPS uses serial port status lines such as Clear to Send and Carrier
    Detect to send signals to the computer. UPS is told to shutdown using
    Data Terminal Ready status line. How are these handshake signals
    carried on a USB port?

    Obviously if not, then USB port on Vista could not see those
    handshaking signals. To understand why USB converter does nothing
    useful, one would understand simple serial port functions and how USB
    w_tom, Aug 7, 2007
  15. Brandon M. Lee, Oct 13, 2008
  16. Also, to connect to it, go to your internet browser and type
    Brandon M. Lee, Oct 13, 2008
  17. I had a similar problem, except my UPS (APC v/s 1000) was too old and not
    supported by Powerchute. I ended up writing my own .net service that polls
    COM1. When the UPS reports low battery, I do a 5-seconds forced shutdown of
    Vista and tell the UPS to go into soft shutdown mode.

    I found the command set here:

    especially command "Q", as it does not asynchronously report low battery
    (it's that old!).
    Darren Sandford, Apr 20, 2009
  18. AlecR

    jonathan Guest

    This is the agent only. You still need the Bus Ed Server, which requires a

    I have not found a free piece of software that will support a serial APC UPS
    jonathan, May 11, 2009
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