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Cpu fans starts and ends in 2 seconds

Just added new PSU and turn the pc on and the cpu fan starts and stops in one or two seconds after turning on my desktop

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  • Anthony Bruno Feb 10, 2014

    OP here...why was my question put into cars and Truck category? My problem is with my desktop computer's cpu fan.



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Check that a 4-pin power-cable (2-by-2 layout) from the new power-supply is connected to the matching socket on the motherboard (or maybe to a high-end video card).

Posted on Apr 23, 2014


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Squealing fan belt.

New belts tend to stretch after a week or two.Simply retighten the belt now that it has settled in & it will be fine.Was it the alternator belt?That is the most common one to sqeal after replacement.Hope this helps you.

Posted on Mar 28, 2009

  • 1 Answer

SOURCE: ac fan won't turn off

In my 2001 Town and Country without automatic temperature control, my heater/AC blower suddenly worked only when set on high. Usually, that problem is your blower resistor pack.

I had to search for the one in my van since the parts man wasn’t sure where it was except that he thought it was in the dash somewhere. (In some other vans it was under the hood.) My Haynes manual didn’t have anything on it except a picture showing it with the blower. I found it directly behind the glove compartment. Very easy to get to once you know where it is.

The glove box can be lowered all the way out of the way just by pulling in the sides so the rubber stoppers come out toward you. The sides bend easily to allow that.

The glove box being out reveals the resistor in the heating duct right in front of you. Just remove the two sets of wires and two bolts (10mm socket, I think) and the resistor pack slides right out. Then bolt in the new one an plug the wires back in (they only fit in one way). Fold the glove box back up and press the stops in to get them back in place and you are done.

The resistor pack only cost $12 and change at my dealer. It is part number 1-04885583AB which was a replacement for the same number with AA at the end, so I’m guessing they had a lot of trouble with the AAs and so made a better AB.

Last Winter my heater blower fan worked only on High. I changed the front heater/AC blower resistor pack and was surprised at how easy it is, but I had to figure it out for myself since my Dealer's parts guy was no help as to where the part lived and my Haynes manual was just plain wrong. This was on a 2001 T+C. I'd be very surprised if the 2001 Caravan was any different. Don't know what other year vans would be the same. I do know some earlier generations had this resistor under the hood and Haynes had is with the blower sort of behind the instrument cluster.

Posted on Sep 16, 2009

  • 1 Answer

SOURCE: 2004 Jetta GLS. Main cooling fan remains on after car turned off.

"Already had replaced: both cooling fans, fan control module, coolant temp sensor, fan switch, 4 terminal connectors. No trouble codes reported in VW electronic diagnostic test. 2 different VW dealers and and my mechanic threw in the towel. Any suggestions greatly appreciated."

This is a common problem with the VW..and no one has an answer WHY. (including VW mechanics)

THIS IS A RECALL ISSUE and should be implemented

Posted on Mar 18, 2011

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by disconnecting the battery you may have corrupted the CPU program. Use a scanner to reset the CPU.. Next by fitting the switch you may have changed the system so that you have affected the immobiliser and other components . It may be necessary to remove what you have done and take extra care as to what wires you hook into.

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The engine light is telling you that the CPU has found sensor/s outside set parameters during the checking process. Have
the fault codes read. Replace faulty items. Use only genuine items as non-genuine replacement are not always compatible with the OEM fitted CPU units Outside of misfiring and missing the only other items to cause vibration are loose fly wheel/cracked flexi plate broken harmonic balancer pulley and fan bearings with an out of balanced fan

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When the CPU overheats then it will shut down (i.e. thermal overload) and won't boot up again until it has cooled down. If this is the problem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are clogged with dust.
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