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Old 10-04-2010, 04:14 PM   #1 (permalink)
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Default Broken Power Supply?

I just got done sleeving a wire for the first time. I sleeved a fan, and to make sure it worked I connected it to an old power supply from an HP computer. When I plugged the power supply in the fan ran fine initially. But after about 40seconds the fan started pulsating in RPMs, I looked at the power supply and saw that the green led indicator for it was flickering. I unplugged the power supply and the flickering continued for about 5 seconds, along with the fan having pulsating RPMs.
I have used this power supply a few times to test fans, the most recent being about 25 days ago.
Do you think something is wrong with the power supply?
could I have messed up the wires for the fan (melting is only possibility) and that caused the power supply to mess up?

I would prefer not to buy a new PSU since I was planning on putting this one back into an older HP computer (3 years old) and using it.
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Old 10-04-2010, 04:30 PM   #2 (permalink)
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Default Re: Broken Power Supply?

A fan should not kill your PSU. It doesn't use very much votage. Does it still work ok with the fan off?
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Old 10-04-2010, 04:36 PM   #3 (permalink)
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Default Re: Broken Power Supply?

I have not tried, assuming it is dying, are there any potential dangers of turning it on inside of the house?
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Old 10-04-2010, 06:36 PM   #4 (permalink)
 
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Default Re: Broken Power Supply?

How are you jumping your psu?

I'd ensure thats still solid.

Not sure what youre saying about safe inside the house..... Its not like its an umbrella
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Old 10-04-2010, 07:17 PM   #5 (permalink)
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Default Re: Broken Power Supply?

Double check your fan connections. Was the power connector a large 4-pin Molex? Did you pull out any pins from the connector? Make sure the pin isn't moving in the connector. Check the wires at the fan body and motor. When you pulled the sleeving tight you might of broke or damaged a wire, or dislodged something thats causing a bump in the fan spin?

A fan really shouldn't bother a power supply at all. Even if you hold the fan blade and apply power it should act like it's got plenty of power.
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Old 10-04-2010, 11:05 PM   #6 (permalink)
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Default Re: Broken Power Supply?

The fan is just probably bad....
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Old 10-11-2010, 10:10 AM   #7 (permalink)
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Default Re: Broken Power Supply?

Quote:
Originally Posted by Slaymate View Post
Double check your fan connections. Was the power connector a large 4-pin Molex? Did you pull out any pins from the connector? Make sure the pin isn't moving in the connector. Check the wires at the fan body and motor. When you pulled the sleeving tight you might of broke or damaged a wire, or dislodged something thats causing a bump in the fan spin?

A fan really shouldn't bother a power supply at all. Even if you hold the fan blade and apply power it should act like it's got plenty of power.
That could be it, I remember one of the fan leads being loose and wigglign around. When I get back home I will take a look at the fan leads. Thank you for the suggestion, I will post back soon.
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