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Re: Disabling the fan on a Linkstation

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  • cherrytreeproduction
    a question..which LS-model do you have? if you have openlink/freelink installed on your box you could install avr_evtd instead of ppc_uartd. ppc_uartd is the
    Message 1 of 4 , Oct 5, 2006
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      a question..which LS-model do you have?

      if you have openlink/freelink installed on your box you could install
      avr_evtd instead of ppc_uartd.

      ppc_uartd is the stock avr_evtd daemon and monitors the buttons, the
      fan and how full the hdd is.

      avr_evtd is the opensource variant and was created by lb_worm from
      www.linkstationwiki.net with the kuro_evtd-source as a base.

      with avr_evtd you can simply run the linkstation without a fan if you
      configure it that way.

      here is the link that might be interesting for you:
      http://www.linkstationwiki.net/index.php?title=AVR_watch-dog_daemon_for_Linkstation

      look at the variable FANSTOP...it can be set to OFF.

      i am currently thinking of building my own case...and remove the small
      and noisy fan...

      mindbender
      www.linkstationwiki.net


      --- In LinkStation_General@yahoogroups.com, KeepIt SimpleStupid
      <keepitsimplestupid@...> wrote:
      >
      > Assuming that the fan's tach signal is open collector
      > and it operates off of 5 volts then figure 14 here
      > http://www.national.com/pf/LM/LM555.html + a resistor
      > and an NPN transistor would be all that would be
      > needed. Something like a 2n3904 with a
      > (5V-0.6)/(25E-3/100). 25 mA will put the transistor
      > into saturation and Hfe is about 100 if I remember.
      > This resistor would be about 15K in series with the
      > output of the timer. The emitter would go to ground
      > and the collecter would go to the tach signal. Values
      > aren't critical.
      >
      > Pick R and C such that the frequency is 1 pulse per
      > revolution for starters and/or check the data sheet
      > for the fan.
      >
      > WHat needs to be verified: Fan 5V, Tach signal is open
      > collector. If it's 12, change the 5 in the eqn. to
      > 12.
      >
      > --- "TinyApps.Org" <mail@...> wrote:
      >
      > >
      > > Does anyone know how to disable/disconnect the
      > > Linkstation's fan and still
      > > have it boot properly? If there is no fan present,
      > > the Linkstation will
      > > flash the red Diag LED 4 times and then shut down.
      > > But I'd like to run it
      > > without the fan, leaving the case off for
      > > ventilation. Is there a some way
      > > to disable the fan check or fool the Linkstation
      > > into thinking the fan is
      > > working properly?
      > > --
      > > View this message in context:
      > >
      >
      http://www.nabble.com/Disabling-the-fan-on-a-Linkstation-tf2385801.html#a6650667
      > > Sent from the Buffalo LinkStation mailing list
      > > archive at Nabble.com.
      > >
      > >
      >
      >
      > __________________________________________________
      > Do You Yahoo!?
      > Tired of spam? Yahoo! Mail has the best spam protection around
      > http://mail.yahoo.com
      >
    • tiny_apps_org
      Thank you, mindbender & KeepIt SimpleStupid! I ll try the openlink/freelink firmware and avr_evtd solution, but first I ve got to get a fan connected, as the
      Message 2 of 4 , Oct 5, 2006
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        Thank you, mindbender & KeepIt SimpleStupid! I'll try the
        openlink/freelink firmware and avr_evtd solution, but first I've got
        to get a fan connected, as the LS won't boot without one. Thanks again!

        --- In LinkStation_General@yahoogroups.com, "cherrytreeproduction"
        <cherrytreeproduction@...> wrote:
        >
        > a question..which LS-model do you have?
        >
        > if you have openlink/freelink installed on your box you could install
        > avr_evtd instead of ppc_uartd.
        >
        > ppc_uartd is the stock avr_evtd daemon and monitors the buttons, the
        > fan and how full the hdd is.
        >
        > avr_evtd is the opensource variant and was created by lb_worm from
        > www.linkstationwiki.net with the kuro_evtd-source as a base.
        >
        > with avr_evtd you can simply run the linkstation without a fan if you
        > configure it that way.
        >
        > here is the link that might be interesting for you:
        >
        http://www.linkstationwiki.net/index.php?title=AVR_watch-dog_daemon_for_Linkstation
        >
        > look at the variable FANSTOP...it can be set to OFF.
        >
        > i am currently thinking of building my own case...and remove the small
        > and noisy fan...
        >
        > mindbender
        > www.linkstationwiki.net
        >
        >
        > --- In LinkStation_General@yahoogroups.com, KeepIt SimpleStupid
        > <keepitsimplestupid@> wrote:
        > >
        > > Assuming that the fan's tach signal is open collector
        > > and it operates off of 5 volts then figure 14 here
        > > http://www.national.com/pf/LM/LM555.html + a resistor
        > > and an NPN transistor would be all that would be
        > > needed. Something like a 2n3904 with a
        > > (5V-0.6)/(25E-3/100). 25 mA will put the transistor
        > > into saturation and Hfe is about 100 if I remember.
        > > This resistor would be about 15K in series with the
        > > output of the timer. The emitter would go to ground
        > > and the collecter would go to the tach signal. Values
        > > aren't critical.
        > >
        > > Pick R and C such that the frequency is 1 pulse per
        > > revolution for starters and/or check the data sheet
        > > for the fan.
        > >
        > > WHat needs to be verified: Fan 5V, Tach signal is open
        > > collector. If it's 12, change the 5 in the eqn. to
        > > 12.
        > >
        > > --- "TinyApps.Org" <mail@> wrote:
        > >
        > > >
        > > > Does anyone know how to disable/disconnect the
        > > > Linkstation's fan and still
        > > > have it boot properly? If there is no fan present,
        > > > the Linkstation will
        > > > flash the red Diag LED 4 times and then shut down.
        > > > But I'd like to run it
        > > > without the fan, leaving the case off for
        > > > ventilation. Is there a some way
        > > > to disable the fan check or fool the Linkstation
        > > > into thinking the fan is
        > > > working properly?
        > > > --
        > > > View this message in context:
        > > >
        > >
        >
        http://www.nabble.com/Disabling-the-fan-on-a-Linkstation-tf2385801.html#a6650667
        > > > Sent from the Buffalo LinkStation mailing list
        > > > archive at Nabble.com.
        > > >
        > > >
        > >
        > >
        > > __________________________________________________
        > > Do You Yahoo!?
        > > Tired of spam? Yahoo! Mail has the best spam protection around
        > > http://mail.yahoo.com
        > >
        >
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