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Old January 24, 2011, 07:12 AM
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This is kind of thing that just happen to you dan...But some pin do carry 5V + There is one that do it actually but I don't remember which one...between 12 and 15 for sure.
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Old January 24, 2011, 07:15 AM
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Then probably the amount of current required for that particular fan is miniscule ... very strange set of circumstances, but then again those kind of issues are definitely not common. I have seen a cracked capacitor keep an LED on when it's supposed to be off (I know, drastically different current consumption, but similar effect).
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Old January 24, 2011, 07:22 AM
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ok. so should i ditch the monitor?

btw the fan is one of those big ones, i tried cards with puny little fans too and no spinning.
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Old January 24, 2011, 07:38 AM
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Well, try to plug it back and remove the screen power cable to see if the fan still spin.
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Old January 24, 2011, 07:56 AM
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i tried,look at above .

itll stop a couple secs later.
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Old January 24, 2011, 10:06 AM
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Quote:
Originally Posted by _dangtx_ View Post
ok. so should i ditch the monitor?

btw the fan is one of those big ones, i tried cards with puny little fans too and no spinning.
The EE in me is saying yes you should get a properly functioning one, however the rest of me is saying no. Realistically, it appears that the fan is *just* being your current bottleneck, whereas the other fans you've tried haven't been able to build up enough voltage to turn on. Even if the situation worsens (by that I mean the potential capacitor completely fails shorted), you're still limiting the current draw through the fan, so that would actually be a safer situation since you'd be dissipating less power in the faulty component.

Also, a smaller fan doesn't necessarily equate to less current consumption ... it could be that the larger fan on your 9600 is a three phase design, which sips power.

I would think that there would be someone here close enough to you to open it up and have a look (if you're not comfortable doing so yourself, of course). I'd volunteer but it would be quite a trek for me .
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Old January 24, 2011, 11:59 AM
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thanks man.

hell im putting together some cheap puters, ill give it for..i dont know, 100 bucks.
for a 24in that powers gpu fans as well should be an ok deal lol.
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Old January 24, 2011, 12:16 PM
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I think you should go find a bunch of pinout data and get out your multimeter.
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Old January 24, 2011, 10:14 PM
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How long does the fan spin for after you power off the computer?

Is it actively being supplied power while spinning and for how long?

Some units come with a feature to keep the fan spinning after your computer shuts off to allow 'better' cooling and might be hardware + firmware specific? I'm surprised that it could actually be drawing power from the monitor, but it would make sense if that is technically possible.
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