AHT error 4MOT/4/4000000:HD_1372

iMac 2010 running 10.6.8. has been booting up to spinning wheel on desktop wallpaper then freezing and only works in safe mode. after some research i ran a hardware test and on completion the message "Alert! Apple hardware test has detected an error 4MOT/4/40000003:HDD-1372." any info you could give me on this error message and/or how to fix this would be greatly appreciated.

Apple do not publish the meaning of these error codes, you simply have to search them & see what other users suggest.
https://encrypted.google.com/search?hl=en&q=4MOT%2F4%2F40000003%3AHDD%2D1372
Occasionally you get accurate answers from people who know what these things mean.
Some threads on this site indicate it could be the HD or the HD cooling fan. ('HDD' could mean 'Hard Disk Drive'). Only Apple can tell you specific meanings.
Personally on such an old iMac I would backup (if you don't have a working copy already) & fit a new HD. Whilst inside you can also see the condition of any fans.
iFixit has lots of good info on replacing parts, otherwise take it to an Apple store or authorised repair centre & be prepared to pay for the repair.
https://www.ifixit.com/Guide

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AHT Error: 4MOT/2/40000004: BOOSTA-907

So I was running the Apple Hardware Test looking initially for a memory issue, which I was able to isolate. However, the second time through I got the above error: 4MOT/2/40000004: BOOSTA-907 From what I have read this is likely the fan on Processor Socket A. So, going from there, I have a few questions:
Is this a user replaceable fan?
If not, what do I need to look to purchase?
Could there be damage to my processors?
And is there a way to 'clear' this error so that I can run the AHT again to search for further errors?
Thanks so much!

This is probably one of a few semi-standard processor coolers.
Unless only the wire is disconnected, fixing this will require pulling the Cooler assembly out and replacing it, or taking it apart and replacing its fan. I have no idea whether these fans are available on the open market -- they generally are only available by the pallet-load.
Re-Installing the cooler requires cleaning the mating surfaces and properly applying good quality thermal paste, so many folks who are not handy pay a technician to do at least this step. Since everything may not work out, there is a premium built into the price from most shops for this work to cover the possibility that the processor never works again and they have to buy a replacement for customer satisfaction.
Apple's flat-rate repair for this item may turn out to be cheaper than an independent shop, because Apple service exists to make you a happy customer, and they use flat rate because they do a large enough volume that "contingencies" average out over all their repairs.

AHT Error message - 4MOT/4/40000003: HDD - 1248

Hi folks........ i'm looking for some help on a AHT error message?
The error message is 4MOT /4/40000003: HDD - 1248
Has anyone any ideas what this is?
Thanks
Paul

You're looking at a drive issue, possibly heat and or fan related. Google is pretty good at pulling up posts for the error message.
If the system is still working and the drive is accessible make sure you do a backup right way and then make an appointment with Apple.
good luck
regards

AHT error gone after removing Boot Camp

Hi,
Recently I ran AHT on my 2011 27" iMac and got this error: 4MOT/4/40000003: HDD- 1229
The error relates to the HDD fan.
I ran the test 5 times and received the same error (last 4 digits change), so I have booked it in to my local AASP to be checked under Applecare.
I was preparing it for collection today and decided to remove my Boot Camp partition. Afterwards, I ran the AHT 3 times and now I'm getting "no problems found".
Is it likely that the Boot Camp partition was causing the error? If so, can I safetly dismiss it?
By the way, I'm an ACSP and I've gone through all the usual diagnostic proceedures.

It's strange that Windows causes that type of problems. However, I recommend you to take the Mac to the Apple Store so they can check your computer. Also, I recommend you to run Apple Hardware Test again, because it may not detect a hard drive problem

AHT erreur 4MOT/4/40000003:HDD-1289

bonjour,
je possede un imac 27" mi-2010 core i3
lors du test avec apple hardware test, j'ai une erreur 4MOT/4/40000003:HDD-1289
quelqu'un a til une idee sur la cause de l'erreur.
a savoir egalement que mon imac a eu il y a 2 ans le hdd changé suite a une campagne de rappel.
dans l'attente de vos reponses
salutations

From the results of a few searches online, the AHT error appears to mean this:
4MOT (motor) & some suggest that would be a fan issue, perhaps cooling HDD.
However there may be more than one thing going on in the computer and you
may see if an Apple Store with Genius bar could help diagnose similar results
and give you their take on the meaning of these codes. Appointments usually
are necessary, and even if the computer no longer has Applecare coverage,
you usually can get some help and an idea what's going on. If no Apple Store
(with genius bar) you may need to try an Apple Authorized Service Provider.
Or check around for an Apple Specialist. You'd likely pay for diagnostics, then.
Sometimes if there's excessive dust in the computer, it may show things are
acting up, such as overheating; or fan failure, cooling issues, etc. Or a hard
disk drive that may be running hot or on its last legs & needing replaced.
The error indicates a hardware cause, so this may be a symptom of pending failure.
But the temperature sensors may be acting up, if this relates, and the margin of
error for them may be compromised if there is dust inside affecting cooling efficiency.
Without knowing for sure, the exact build model iMac, can't say if there may be
another issue going on to contribute to the Error message. Or if there had been
a EFI firmware update for that computer, still in existence, that may apply. Given
the age and wear, an earlier iMac may need a replacement hard disk drive by now.
In any event...
Good luck & happy computing!

Error 4hdd/11/4000000:sata ssd - using Apple diagnostics on a MacBook PRO 15" with 512GB SSD. My trackpad goes berserk.

I have a MacBook PRO early 2013 15" (10,1). 16 GB RAM, 512GB SSD. Running Mac OS X 10.10.
A couple of weeks ago my trackpad started being unresponsive and within a couple of days was not usable. Searched for solutions and have tried them all, (control option shift L power); (Option cmd R P power) (checked for dirt around the trackpad) (Cleaned the trackpad in case there was oil on it from my skin) (shut the screen and leave for a few minutes and try again).
I ran apple diagnostics (twice) and got the error 4hdd/11/4000000:sata ssd.
I have noticed that the computer recently will also randomly reboot.
When I connect the bluetooth mouse it sometimes has problems connecting; i.e. won't pair, but once paired works fine.
Anyone had similar issues. This is my 5th MacBook and the first time I've had a problem.
John

Ah, here we go. The alert can be safely ignored. Your drive is fine:
Symptoms
When you test your Mac notebook using an SSD or Flash storage drive with Apple Hardware Test (AHT) diagnostics, you may encounter the following message if the test is looped multiple times:
4HDD/11/40000000:SATA
Resolution
The alert is erroneous and generally takes multiple loops of Apple Hardware Test to induce.
Before starting Apple Hardware Test, looping can be enabled or disabled by pressing the L key on the keyboard. If the message appears and there are also other issues with the computer that appear to be related to the solid state drive (SSD) or Flash storage drive, schedule an appointment at an Apple Retail Store or contact an Apple Service Provider.
Excerpt from Apple Support article: http://support.apple.com/kb/TS4356

Error: 4SNS/1/4000000:TGOD after logic board replaced

Hi there -
I got my MBP back today, after having the logic board replaced to resolve the nvidea graphics card issue (http://support.apple.com/kb/TS2377).
After working with it for about 40 minutes the screen went blank. I ran the Apple Hardware test on restarting, and got the following error code -
4SNS/1/4000000:TGOD
I've given it back to the guys who repaired it for further testing. They said that their diagnostics arent showing anything, but the Apple Hardware Test has come back with this error each time. I've searched around for information on this error, and there are suggestions ranging from issues with the logic board to a thermal sensor issue.
I've found 2 threads in this forum where people have experienced the same sequence of events - logic board replaced for the nvidea problem, only to get this error code when the laptop is returned.
http://discussions.apple.com/thread.jspa?messageID=8633584&#8633584
http://discussions.apple.com/thread.jspa?threadID=1850653&tstart=0
Can anyone shed any light on what the problem might be? Has anyone else had the same issue?
Any feedback would be appreciated.

I can't find the thread, but I do recall one case where the person got to talk to a product specialist, who said that the sensors sometimes do not get precisely located where they should be after a logic board is replaced, as well as sometimes not being securely plugged into the logic board. I don't think the AHT error should be ignored. If the local guys can't figure it out, it may need to go to Apple.
Good luck!
Message was edited by: S.U.

My Mac is doing strange things: delaying between users, mouse flickering and bouncing, gets stuck with rainbow wheel flickering. I ran the appel hardware test and it detected an error: 4MOT/4/40000003:HDD-1233 Does anybody know what that means? HELP!

My imac is doing strange things:
-delaying between users: when closing session it goes to blue, then takes a while to appear users signin box, and then wont recognize mouse command to enter until a couple of minutes later... then everything seems alright until....
-it gets stuck between things, the rainbow wheel appears and its just delays there forever....
-and every now and then the mouse starts flickering and bouncing wildly onscreen.
I ran the appel hardware test and it detected an error:
4MOT/4/40000003:HDD-1233
Does anybody know what that means? HELP!

WZZZ answered about where to get iStat. And do check the SMART status. If it is an overheating problem due to a fan or logic board problem, your hard drive is possibly cooking itself to death. If so it isn't a faulty hard drive even though the hard drive might fail. So assuming it's a temperature problem, even if you are able to repair things on the disk with software, that is working on symptoms, not causes. I could be wrong however.
RE: AppleCare: Your iMac came with one year of AppleCare (Apple's warranty program), but within the first year you can buy 2 more years. You have to extend by the one year anniversary of purchase of the computer. Your 10,1 is too old to still be in the first year, and since you asked what it was, I'm sure you don't have it. Bottom line meaning is that whatever this problem turns out to be, you'll have to pay for it. Unless there is something like this. It is for 2011 iMacs with certain Seagate drives. You can put in your serial number for fun, but it looks like yours is too old. Lastly, some people have had Apple help them anyway if it is just out of warranty, but many have not. Your machine is one of these. Type in 10,1 in the search box. Is there an Apple Store near you? Just b/c it's out of warranty doesn't mean you shouldn't have it looked at by Apple. But no one here can say at all what Apple will or will not do.
Hope you get it taken care of!

I ran hardware test and error 4MOT/1/40000003: HDD-1322 came up. Anyone know what this is?

I ran hardware test and error 4MOT/1/40000003: HDD-1322 came up. Anyone know what this is?

Hi guys,
I have a similar problem, the numbers at the end of the error code change a bit, when i do the apple hardware test again ( I have an imac of early 2008, 2,66 GH). I have 2 GB Ram now, after one week ago one of the 2GB-Ram sticks "died") In fact, it was working quite much, then suddenly (i bought imac in june 2009) the ram stick was broken. The apple-support center told me its probably not a problem, but did not tell me what the error code means. I have apple-care for 3 years, its a luck i did it, so they will take it and check carefully, but just after i insisted on the error. It seems they do not want to tell u what that could be....
Do u guys think the ram-stick was broken because the imac was too hot???

What is Hardward Test Error "4MOT/1/40000003: HDD-1330"

Recently, my daughter experienced massive Finder problems (continual spinning beachball with freezes, Force Quit unresponsive) on her iMac (Intel Dual Core 2008 Model). Eventually, she got nothing but a flashing question-mark on a restart.  
Before reinstalling system software, I ran an Apple Hardware Test and it reported "No Problems". Disk Utility reported "Volume OK". Archive and install failed twice. I was able to retrieve and copy her home folder slaving the sick iMac to my operating G5 using Target Disk Mode. Following that, I did a complete erase and install of the OS.
  However, AFTER reinstalling the OS, I ran Hardware Test again and it reported the following error "4MOT/1/40000003: HDD-1330". I suspect this may mean that her 1GB ram chip is going bad, but I am not sure. Does anyone know what this error means?

Thanks, Kappy. I may try finding a deal on an external HD for her for the time being and get her to back up what she has regularly using SuperDuper, then try replacing the internal HD myself when it gives out. (Who knows—it might keep running for quite a while in this state—I'm keeping my fingers crossed.) I'm pretty good at following instructions and may try doing the replacement myself when the time comes. At least that will allow us to save the important stuff and give us more time to save the money for the new HD purchase. No one fixes Macs around here, and I'd rather try installing the new HD myself than sending it back to Apple.

G5 DP 1.8 AHT 'error on startup'

One of my work's dual 1.8s turned out to be running on one CPU (for how long I don't know). Passed AHT, tried CHUD, no sign of missing processor. After a chat with a service guy, and being out of warranty, I decided to get my hands dirty. After browsing the web for info and taking on board the suggestion that 'the CPU may not be seated properly', I removed the second processor. Ran AHT - fine. Replaced processor - bingo! Dual 1.8 once again, but screaming fans. Ran AHT - 'error on startup' ERROR post/2048/0 ERROR, etc.
Removed second processor again. AHT - fine. Replaced processor; AHT - error; boot OK.
Removed second processor; removed first processor; installed second processor in first slot; AHT - error; boot OK.
Installed first processor in second processor slot; AHT - error; boot OK.
So what I have now is an apparently fully functional dual 1.8 G5, but with constantly running high-speed fans which sees an 'error on startup' in the AHT.
Can anyone shed any light on this problem?

The system probably isn't calibrated properly to run with the second processor. When you re-installed it, the system's thermal controller probably got confused and is kicking the fans into highspeed to prevent damage to the computer.
Apple's [service] manual states that you need to run the Apple Service Diagnostic to calibrate the fans/thermal management.
Unfortunately this is not available from Apple unless you are a service professional, and I cannot seem to locate it anywhere on Google. It would be best to get an Apple Techie in with the CD to re-calibrate the thermal management.
If that doesn't work, then the second processor could be damaged.
-S'Captain

What is Error: 4MOT/1/40000002:Left_Upper-Front

I just ran the advanced hardware test on my MBP using the first CD. I got the following error 4MOT/1/40000002:Left_Upper-Front. What does it mean?
Thanks,
Dmitry

My MBP left side is much hotter then the right side, so i checked fan rpm's by iStat (Widget) and Hardware Monitor. Both progams diagost a fan rotation of 0rpm for the left fan. Some days ago i heard an noise, like a unclean rotating fan, also from the left side.
On "Apple Hardware Test" i get the same error: '4MOT/1/40000002: Left_Upper-Front', calling Apple Care and going to a service provider. After more information, i come back!

Error 4MOT/4/40000003:HDD-1267

Hi, with the test hardware on my iMac 27 mid-2010 I get the error:
4MOT/4/40000003:HDD-1267
What is this?
I live in Ticino Switzerland and I don't know what I have to do and where I have to bring mi iMac if it has an hardware problem.

I tried an advanced test and I get a different error:
4MOT/4/40000003:HDD-1269
Different only for the 9 at the end.
It's this another error?
I retried also the fast test and get this:
4MOT/4/40000003:HDD-1267
Why there is an erorr in the fast test and another one in the advanced test of the hardware?
Do you know any apple store in Ticino Switzerland?

Error: 4MOT/4/40000003-HDD-1355

Please help, I have the following message when running the Apple Hardware Test:
Error 4MOT/4/40000003-HDD-1355 on the quick test,
the extended test was identical except for the last 4 digits which were 1362.
Previous posts seem to indicate it is the fan that cools the hard drive, the last four digits indicating the fan's speed.
Could it be the hard drive or the logic board?
Thanks in advance for your help.

Mike:
First, thanks for helping me. Second, I believe you are right and it is the hard drive. I had a white screen the other day. I shutdown using the power button. Later, more white screens combined with restarts. I downloaded Yosemite and that fixed the problem for about 48 hours. Then white screens again. At one point it was going from a white screen to restart over and over for about 7 minutes until it finally was able to get to the desktop. Sounds like a hard drive towards the end of its useful life. Will know for sure on Tuesday, and will post to let you know. Hope it isn't too expensive a repair. Thanks again, I really appreciate your help.
Andy

Que significa el error 4MOT/4/40000003 HDD en Imac 27

Mi imac 27 pulgadas mediados del 2011 se quedo pegada ante esta situacion reinicie la imac y me aparecen unas rayas rojas, entonces corri el apple hardware test y me da el error 4MOT/4/40000003 HDD lo corri tres veces y al final los numeros cambian en cada ocasion que lo corrí quedando de la siguiente manera:
4MOT/4/40000003 HDD - 1362
4MOT/4/40000003 HDD - 1359
4MOT/4/40000003 HDD - 1363
Alguien sabe que significa ese error??
Gracias

Vuelva a colocar el hardrive.

AHT error 4MOT/4/4000000:HD_1372

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