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05-20-2018

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M73 fan turns on and runs hard then eventually turns off

2018-05-20, 2:12 AM

           System type :    M73.

  •  System model number.  001YUS

  • Operating system installed.   Win7 64-bit

  • BIOS version.   LENOVO FHKT49AUS, 6/27/2014

 

Fan turns on (high) and off for no apparent reason. Sometimes for a few seconds other times for a few minutes.

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3795 Posts

01-01-2012

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Re: M73 fan turns on and runs hard then eventually turns off

2018-05-20, 13:24 PM

Can you gives us details about when it does this?  How soon after turning on?  When you're doing on it at the time?  How many hours a day does it run? 

 

The model number you gave above, is the tail end of a model number, what form factor is the system? 

 

 

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Re: M73 fan turns on and runs hard then eventually turns off

2018-05-25, 16:30 PM

I have delayed replying because I wanted to gather the data that you requested. For the last several days, I have not experienced the fan noise, even after 6 hours of operation. So at the moment, I cannot give you further information on timing.

 

The fan can turn on by itself even if I am not doing anything, i.e. even if I am away from my desk.

 

Sometime I leave the computer running over night, so it might be on for more than 24  hours. 

 

What is a "form factor" and how do I locate it? The entirety of the information on the label is:

model = thinkcentre M73

machine type  10AY

model number 001YUS

I don't want to publish the serial number here

product ID: 10AY001US

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Re: M73 fan turns on and runs hard then eventually turns off

2018-05-25, 20:40 PM

10AY is a M73 Tiny.   The ultra small form factor means the CPU heatsink and fan are similar to a laptops, and the smaller size makes them more suspectable to compromise by dust build-up.   There's an other thread on the front page, M90z, same problem. 

 

Removing and cleaning the fan, cleaning the heatsink, and reinstalling the fan will probably correct the problem. 

 

I suggest you put it to sleep or shut it down when you won't be using it for several hours, this will reduce dust build-up in the future. 

 

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Re: M73 fan turns on and runs hard then eventually turns off

2018-05-27, 16:58 PM

Don't know if this makes any difference but today, I started the PC and almost immediately the fan started cycling on and off.

 

I will proceed with cleaning the fan as per your instructions.

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Re: M73 fan turns on and runs hard then eventually turns off

2018-05-27, 17:31 PM

 wrote:

Don't know if this makes any difference but today, I started the PC and almost immediately the fan started cycling on and off.

 


It's odd that it did cycling almost immediately, there could be a couple of factors at play. 

__________________________________________________________________________
I do not work for Lenovo. I do not respond to Private Messages for help, your questions should be posted in the appropriate forum where the information exchange may help others. If I helped you, click the 'Thumbs up' button, if solved, the 'Accept as solution'.
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