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Fan full speed, no LED

 
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zedtvl
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Joined: 11 Sep 2006
Posts: 442
Location: AZ/Usa

PostPosted: Fri Apr 20, 2012 1:09 pm    Post subject: Fan full speed, no LED Reply with quote

Hi Before selling it I wanted to clean up the HDD of my late 2009 Mac mini.
It was unplugged for about a month. Last time I was using it worked fine I did a migration to the new mid 2011 model, I had it started in target mode and everything went smoothly.
It is starting the there is no LED and the fan is at full speed, I tried to reset PMU and uninstalled SMC fan control reinstalled it is still going crazy.
I do not think it is the connector since it was working fine before.
Can it be that it is due to the fact that it was unplugged for a month?
Is it true that it might be problem with the motherboard? (it starts and function depsite the fan and no LED)
Before opening it to check the connection should I do something else?
Thanks for your answers.
_________________
Mac Mini i7, 2.3 GHZ, 8GB Ram.
Macbook pro 2009 Core 2 Duo, 240GB SSD, 2.66GHz, 8GB Ram
Dead PowerBook 180, M4440 33 MHz, 8 MB ram.
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zedtvl
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Joined: 11 Sep 2006
Posts: 442
Location: AZ/Usa

PostPosted: Fri Apr 20, 2012 1:19 pm    Post subject: Reply with quote

update:
After letting rest for 10 minutes, I started it without being attached to the monitor (a 24 inches Dell) the LED was back, the fan was normal however I had to reset the display . What was going on?
I would hate to sell a defective product
_________________
Mac Mini i7, 2.3 GHZ, 8GB Ram.
Macbook pro 2009 Core 2 Duo, 240GB SSD, 2.66GHz, 8GB Ram
Dead PowerBook 180, M4440 33 MHz, 8 MB ram.
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A3man
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Joined: 13 Feb 2012
Posts: 5

PostPosted: Mon Apr 23, 2012 3:29 am    Post subject: Reply with quote

First of all, the PMU reset is the incorrect Procedure for your mini.
Do the SMC Reset.

When you do the PMU-Reset, the Mini starts with your fault-> No LED and Fan on Full Speed!

And after 10 Minutes letting rest, it will do the SMC-Reset and everything is ok.

Sorry for my english, i hope you understand me Wink
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zedtvl
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Joined: 11 Sep 2006
Posts: 442
Location: AZ/Usa

PostPosted: Mon Apr 23, 2012 2:09 pm    Post subject: Reply with quote

no I understand very well, thanks for your answer.
_________________
Mac Mini i7, 2.3 GHZ, 8GB Ram.
Macbook pro 2009 Core 2 Duo, 240GB SSD, 2.66GHz, 8GB Ram
Dead PowerBook 180, M4440 33 MHz, 8 MB ram.
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