Apple hardware test 4MOT/4/40000003:HDD-1244
Hi again just ran a hardware test on my 27" Imac and came up with 4MOT/4/40000003:HDD-1244 does anybody know what it refers to.
thankyou Mark
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Been listening to that run away fan for a long time now ;-) Loud, isn't it!
Here's what you need to fix the problem:
OWC In-line Digital Thermal Sensor for iMac 2009-2010 Hard Drive Upgrade
https://eshop.macsales.com/item/OWC/DIDI...
Apple used priority heat sensors on this series of machines.
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Thanks I check it out, going to open it up soon. I am wondering if this has anything to do with random black screen. I keep you posted if it also resolves the issue. Thanks
Black screen is most likely a separate issue. Hook it up to an external monitor when that happens and see if the GPU is generating a signal. It may need a reflow.
I have done the torch test and I can see the desktop images some have suggested LCD convertor. also what do you mean by 'need a reflow'?
Work over the LED driver board looking for a cold solder:
https://www.youtube.com/watch?v=h5_dBMuJ...
, that failing, replace it: iMac Intel 27" EMC 2309 and 2374 LED Driver Board Replacement
4 Comments
Have you changed the hard drive? Please tell us your exact machine.
by mayer
Hi Mayer I have a late 2009 iMac 27" and yes the hard drive has been replaced about a few years ago.
by mark.mcgivern
What was the test's exact name.
by Lord Vader's Finest Rocketeers
Vader, that's the AHT Apple Hardware Test.
by mayer