Apple Hardware Test Problem Detected

I did an Apple Hardware Test, (where you restart your computer while holding down D and Apple detects if you have an problems on your computer). And I was notified that I had this problem: "4SNS/1/40000001:1DOR-0.000" What does this mean? How do I fix this problem?

Help here > Mac notebooks: Apple Hardware Test may report SNS alert when power adapter is not connected

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Hello. Apple hardware test has detected an error. 4SNS/1/40000001:TN1D--1.000

Hello. Apple hardware test has detected an error. 4SNS/1/40000001:TN1D--1.000 Anyone knows what that means ? OS doesn't boot. Maybe it's hard disk error ?

It means your screwed if you're out of warranty.
That error translates to your northbridge temperature sensor is bad- BUT IN MAC "GENIUS" LAND, that means you either need a whole new logic board (a $700 part) or buy a new MacBook. On the non-unibody MacBook pros, you could have came to my store and spend $75 and had a working computer the same day- this is no longer possible on the unibody MacBooks.
WHY, WHY, WHY?
In a bold design move, Apple decided to SOLDER the thermal sensors to the logic board (along with many other components such as the video, graphics and IO), thus rendering these parts NON-SERVICEABLE by us independant technicians. Apple's reasoning is that they can "make their notebooks thinner", but why sacrifice performace for asthetics? Who cares, buy a new MacBook.
WHO NEEDS TEMPERATURE SENSORS?
It doesn't matter if your laptop is running hot or not, when a temperature sensor goes bad on a Mac, it shuts your computer down to prevent further damage. Apple was the first company to implement this "failsafe", now PC motherboard vendors are following suit after watching Apple's stock soar. What this means: Is that you could actually have a perfectly functioning MacBook except for one thing; the little guy who's sole purpose is to report whether it's not the computer is running hot or not has decided to not show up for work, so they closed up shop. If you ask me, it's the equivalent of a restaraunt closing on account of not having a dishwasher- but that's just the opinion of an ex-certified ACMT and what do I know- I'm not a "genius" or anything.

Will Apple Hardware Test definitely detect RAM errors?

Hello,
Been having various problems with Leopard/MacBook. Someone suggested running Apple Hardware Test, which I did, in extended + looping mode all night (it cycled 6 times). The test turned up nothing. Can I take this to mean that whatever problems I am having are definitely software related? I am not familiar with the AHT, don't know exactly what it does, nor how I can interpret a "clean" result...
Many thanks for any advice/tips.

No indeed (just "Colin" is fine...)
My problems have mostly been documented by other people, and I have just been monitoring the discussions on these issues.
Specifically (at the risk of getting off-topic):
1) inconsistent shared server behaviour: I have 3 other macs at home - an iBook and a G4 MiniMac running Tiger, and a G4 tower, also running Leopard - and most of the time, the tower doesn't show up at all, but I can connect to it via CMD-K, the MiniMac shows up in the sidebar, but won't let me connect, and the iBook, when it is running, behaves normally. Oh, screen sharing doesn't work either: it tries connect but hangs (except for the iBook, which works). I could connect to all four quite normally after upgrading to 10.5.0, using the sidebar icons. Everything worked fine until sometime after the 10.5.1 update, when suddenly everything went pear-shaped. Nothing has changed in the configs of the other machines, and the iBook and the MiniMac are identical in terms of software config (but behave differently as regards this problem?!?)
Closing Airport and reopening it makes the icons reappear in the sidebar (all of them, G4 tower included), as does relaunching the Finder, but doesn't change the behaviour: I still can't connect. When I try to use the sidebar icon for the tower, it disappears (the icon...)
As far as I can tell, trying to operate shares from the G4 tower works as Apple intended (although I admit I have not exhaustively tested every option, as I don't have unlimited time...)
2) Lost my printer connections, both at work and at home. I managed to reestablish them at work, but I tried so many things that finally I'm not sure what actually worked. No dice at home (shared printer on the MiniMac... same problem as (1) I guess.)
3) the dreaded Keynote spontaneous reboot problem (I placed a reply about that last night here:
http://discussions.apple.com/message.jspa?messageID=6630702#6630702
4) diverse weird things, like
4a)iCal which had doubled all my events the last time I opened it. I had to manually delete one copy of every event I had entered, whereas I made these entries several weeks ago, and had consulted them many times... I'm thinking this is perhaps a result of the brutal reboots caused by (3)? Having deleted all the doubles, iCal seems to be behaving normally again.
4b)screen resolutions on my slave screen suddenly failing to select properly. I move my MacBook between two different external monitors, one at work, one at home, and their resolutions are different. Initially the MacBook had no trouble detecting and correctly setting the resolutions for the two screens, then suddenly my home screen went weird on me, and required a manual reset. Again, this was a once-off, and does not seem to be repeating (yet).
4c)sluggish performance with some apps that are normally quite snappy, like Firefox, which seems to hang a lot loading pages, Keynote (saving is often painfully slow), and indeed, trying to copy a 250Mb file from the tower to the MacBook via Airport (having connected using CMD-K) said it was going to take 33 hrs, which I thought was a bit rich...
4d) hot-swapping a usb pin for a keyboard+optical mouse receiver from the tower to the MacBook sometimes causes something inexplicable to happen to the MacBook's keyboard: both the Caps and the NumLock LEDs come on, and the keyboard has jumped into some config other than what it is normally in (French). I have not been able to determine what the keyboard actually thinks it is when this occurs (3 times now). The command keys (ctrl, alt, cmd) do not appear to work at all. Rebooting corrects it.
All up, pretty irritating, and a huge time waster, as you can well imagine. I stuck a bit of a rant on the discussions the other day in a moment of intense frustration, which got zapped by the moderators (probably not unreasonably!), but not before someone replied suggesting that it might be bad RAM, hence my questions here.

HT201257 mac os x 10.4.11 tiger: apple hardware test has detected an error (what does this mean): 4SNS/1/40000001:VDOR

Can someone help? I did an apple hardware test and it has detected an error: 4SNS/1/40000001:VDOR
What does that mean? Can i correct it myself? how?
my computer is "tiger" mac os x 10.4.11, Processor: 2.16 GHz Intel Core 2 Duo, Memory: 2.5 Go 667 MHz DDR2 SDRAM

Thank's for answering, realy appreciate your time,
A technician had installed last year "mac os x snow leopard 10.6" (family pack) at around $49.00 - I had originaly mac os x 10.4.11 (tiger). He had changed my hard drive, added memory: 2.5 Go 667 MHz DDR2 SDRAM, processor is: 2.16 GHz Intel Core 2 Duo (he told me he had to change my hard drive probably due to a power shortage. Before he did the changes, I had done a hardware test: it gave me the same error as today 4SNS/1/40000001:DVOR, He cleaned the inside, but he did not change any sensors. What am i to do???
Not too long ago i started having problems. (probably from a power shortage, at one point. I don't know if my external back up got corrupt. so i don't want to use it. He had eraced tiger 10.4.11 and installed snow leopard 10.6.
I eraced snow leopard and installed mac os x 10.4.11 (that came with my computer).
I wanted to install mac os x 10.6 (snow Leopard) without eracing tiger (chat sites say you can do that) but it said it couldn't use my hard disk because of my memory: my info says: used: 18,78 Go on the disk, available: 446.66 Go, Capacity: 465,44 Go
So that's when i did a hardware test with the CD1 of mac os x 10.4 (tiger) and that where i got the message.
If i have a sensor problem, then i guess i'm waisting my time trying to reinstall mac os x 10.6 (snow Leopard) or am i doing it wrong. I was told i could leave tiger there and upgrade directly to snow leopard, without installing mac os x 10.5 (leopard).
Thank again

Apple Hardware Test problems

Hi All. I have a very weird problem here, as I can't get the Apple Hardware Test to start on my late 2008, 2.66 MBP15 inch model# MC026LL/A (released early 2009 as a quiet upgrade from 2.53). Here's the story:
I opened up my machine as usual one morning, and the optical drive made a very weird noise I never heard before. So I decided to run the Apple Hardware Test (AHT) to see if anything was amiss. Well, I inserted the second install disk, held down the "d" key, and restarted the machine. It began to boot into the hardware test, but just after the AHT screen appears the computer just shut down. This happens every time I try to run the AHT.
I went to an Apple Store while I was on holiday in Brisbane (they don't have one here in Adelaide), and the genius said it was likely a bad optical drive. Well, I returned to Adelaide last week and had the local Apple Authorized store replace the optical drive. Tried to run AHT once again, and the same problem persists. So the original problem wasn't with the optical drive.
I thought maybe I accidentally used the startup disks for my wife's late 2008 15inch, 2.4, MBP (the one actually released in late 2008). I've looked around for the other sets of disks and can't find them. So here's what I'm asking help for: can someone who owns a 15inch MBP 2.66 15-inch (released in early 2009, model# MC026LL/A ) please tell me what the part # is for their set of install disks? It is written on the plastic sleeves of the install disks. And, could this person please tell which version of AHT is written on the disk itself? The set I have (which I think might be my wife's) has AHT version 3A158.
Might this be the problem, or should my computer still be able to run the hardware test using my wife's disks? I know they are both technically late-2008 15inch unibody MBPs, but I think my 2.66 (again, quietly updated and released in early 2009) might require a different AHT version, which would explain my inability to run the test. If not, what might be causing my computer to not run the AHT? I tried reinstalling OS X to no avail.
Thanks for all of your help!

I think I share your skepticism--if your Mac was shipped with the later version of the OS, you should not have been able to do a clean install with discs of an earlier version. It looks like some machines originally shipped with OS X v. 10.5.5 and others with OS X v. 10.5.6. I don't remember just when 10.5.6 came out.
Your two machines are likely very similar in build, and maybe similar enough for the OS to install. It may be that the AHT is specifically designed for the hardware in each machine, and that would be a bit different.
As someone else said in another thread, there ought to be a tutorial on how to keep track of the original install discs since they are always getting lost. Maybe a secure note in the keychain or something like that.
Out of curiosity, does the AHT work on your wife's machine? If not, there could be a problem with the install disc itself, and if so, you might be able to get a free replacement under warranty.
Good luck!

Apple Hardware Test problem on Mountain Lion

I;ve been trying to do the Apple Hardware Test with no success. I've tried holding down D and option-D yet nothing. My macbook just boots up as normal. It is recommended to download the EPI firmware upgrade fro Lion recovery. That one is just not compatible with my system and could not install it. What's next? Can I just download the AHT from somewhere?

It depends on what OS your mac shipped with. Which OS did it ship with?
http://support.apple.com/kb/ht1509

Apple Hardware Test Problem!!!

I've been having problems with my 4 month old G5 and so I ran the AHT.First I ran the extensive test and the whole thing froze after 3 minutes.I turned the computer off and on again.It started up like nothing hapened.I restarted,ran the short test and the same thing happened at 1 min 55sec of the test. The computer seems to be running fine but when it's frozen up I'm afraid I have two red led's on the front (I take that's the logic board?) it seems to be LED#1 and LED#3.
I wouldn't bother anyone but the closes reliable Apple Certfied Service Provider is 230 kilometers away...seriously.
Thanx a bunch!

Thank you guys so much! I just want to clarify this
one more time (I am new the whole Mac culure)
My AHT corresponds to Mac OS 10.4.4 making it
useless, right? I did read quite a few posts about
outdated AHT but I didn't get if there was a way to
get a newer version.
A new version of OSX will not affect the hardware test because the hardware test doesn't use the operating system. It will run even if the hard drive is empty. It is possible that a firmware update might require a new version hardware test. If the hardware test is failing, remove any non-Apple hardware (RAM, PCI boards, etc.), unplug all FireWire and USB devices (except mouse and keyboard), and try the test again. If it still fails, call Apple. If you need a newer version of the hardware test, they will let you now.

Apple Hardware Test detected an error code... now what?

I ran AHT and I got this message:
Alert! Apple Hardware Test has detected an error
4M0T/1/40000003:HDD-1424
Can anyone shed some light on this?
My early 2008 iMac has been having issues with the spinning wheel when opening and using applications. I can't seem to pinpoint when it happens, but many times I will have to shut down or power the machine off to stop the wheel of death from spinning.
Any help would be greatly appreciated.

bump... any one else?
I was able to boot the machine up today and I am noticing the top of the machine is getting very hot. Could this be the overheating issue I have read about here in discussions?
I was also able to transfer files to an old eMac, so I am backed up, but that transfer slowed after the machine warmed up. I would shut the iMac down and let it cool... it then transfered great while cool but slowed when it heated up....
I am taking it in to a local authorized repair shop Monday morning..... just hoping for some more thoughts before then.
Thanks!

Ran Apple Hardware Test from USB Install Drive on new MBA, Got this error

Last week I got the fully loaded 2010 MBA 13" (2.13ghz/4gb/256gb).
It's just perfect, I have no problems with it.
On a whim, I ran the quick Apple Hardware Test using the included USB install drive (took just a few minutes) and it came up with this:
Alert! Apple Hardware Test has detected an error.
4SNS/1/40000001:IDOR-0.040
Screenshot:
http://img811.imageshack.us/img811/9800/2010macbookairhardwaret.jpg
Any ideas on what that means? Hopefully it's a false positive. I'm running the extended test right now, which will take more than an hour. Will report back.
Anyone seeing anything from the hardware test?

jonm8 wrote:
Last week I got the fully loaded 2010 MBA 13" (2.13ghz/4gb/256gb).
It's just perfect, I have no problems with it.
On a whim, I ran the quick Apple Hardware Test using the included USB install drive (took just a few minutes) and it came up with this:
Alert! Apple Hardware Test has detected an error.
4SNS/1/40000001:IDOR-0.040
Screenshot:
http://img811.imageshack.us/img811/9800/2010macbookairhardwaret.jpg
Any ideas on what that means? Hopefully it's a false positive. I'm running the extended test right now, which will take more than an hour. Will report back.
Anyone seeing anything from the hardware test?
I think this will solve your issue:
http://support.apple.com/kb/TS3578?viewlocale=en_US

Disk repair and Apple Hardware Test says HD has no problem but grey screen still persists on MBP

5 days ago while on vacation, my MBP just froze with the grey screen, apple logo and spinning gear.
I performed all that was instructed on the following discussions:
http://support.apple.com/kb/TS2570
except Archive and Install installation of MAC OS X and Erase and Install MAC OS X since I was able to save my files in my husband's MBP via Firewire Target Disk Mode. At this point, I am still apprehensive in erasing my files and installing again the MAC OS X.
When I did the Disk Repair under the Disk utilities, it says that my Mac Os X is ok. (It also said ok when I did the fsck -fy when I till did not have my CD when I was on vacation)
I also tried the Apple Hardware Test (AHT) to further l test the hardware of my MBP and performed an extended checking and after an hour, its says that my HD has no problem.
Yet, after all these, when I restart my computer, it still has the grey screen with apple logo and spinning wheel!
Can anyone tell me what else can I do??? Appreciate any help!

I like the free demo of SuperDuper to make clones. It's free, Leopard and Snow ready and is easy to use. If you buy the full version you can do incremental backups.
You should use Disk Utility to do a Disk Repair, as shown in this link, booted up on your install disk, before you make a clone of it. I use DiskWarrior for that instead.
I then partition my external disk, in Disk Utility, with a partition that is the same size , actually a tad bigger, as my system disk. I then use SuperDuper to clone my system disk over to that partition.
With a clone on an external FireWire drive (USB drives are not bootable on PPC Macs but are on some Intel Macs) you can bootup on it to do your repairs, on the main drive, or just run your Mac anytime you have trouble with your main drive.
That's why I like clones better then Time Machine. You can just bootup on them and use your Mac.
On the DiskWarrior thing, I use DW once a month to try and catch errors in my system from getting too far out of hand. It has repaired every little and big issue I have ever had with my three Macs.
And I have had times when Disk Utility's Disk Repair says everything's fine but my system was still having issues. Disk Utility, in my experience, cannot be totally relied on to find and report all issues. It just isn't robust enough.
I run DiskWarrior, it does find errors, repairs them and I'm back in business. I swear by it!
DALE

Problem apple hardware test

my macbook pro early 2011 i5 is too slow so i use onyx with no result so i make an Apple Hardware Test for check and i have a alert! a problem hardware with code:
4SNS/1/C0000008:TPCD--124

That sensor is reacting to the temperature at the CPU power bus. Make an appointment at an Apple store genius bar for a free evaluation. This is a hardware problem with no software solution.
Ciao.

Can anyone explain why I cannot restart my computer after apple hardware test with no problem found

Can any body help
when starting computer apple hardware test appears
following test, no problem found but cannot restart computer
apple hardware test appears again
How can i skip apple hardware test?

Have you read for possible solutions over in the "More Like This" thread over here?----------------------->

HT201257 I just bought an imac in september 2012. And i just find out that my microphone is not working. So i did an apple hardware test and with no problems found? I have sound but no one can hear me, not even the computer. Should i bring it back to

I just bought an imac in september 2012. And i just find out that my microphone is not working. So i did an apple hardware test and with no problems found? I have sound but no one can hear me, not even the computer. Should i bring it back to the store

Before you go through that trouble open About this Mac > More Info... > System Report > Audio and see if the system actually knows it has a microphone. Then you can look into Applications > Utilities > Audio MIDI Setup and see if the microphone is there, select it and make sure the sliders are set to full. Then in System Preferences look for Sound > Input and make sure it shows up there and the sliders are at least half way up. If none of that works do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.
then go through the process of looking for the microphone again as the reset may reenable the mic.

Con apple hardware test rilevo questo errore nella memoria 2MEM/1/4 DIMM1/J4001/1/ e qualche altra volta 2MEM/104/4 DIMM1/J4001 ritengo siano problemi ad una delle memorie ram aggiuntive. che debbo fare ? è da sostituire? o c'è un modo di escludere l

con apple hardware test nel mio IMAC G5, rilevo questo errore nella memoria 2MEM/1/4 DIMM1/J4001/1/ e qualche altra volta 2MEM/104/4 DIMM1/J4001 ritengo siano problemi ad una delle memorie ram aggiuntive. che debbo fare ? è da sostituire? o c'è un modo di escludere il o i banchi di memoria interessati?

Apple Hardware Test : mother board problem : post/16/64

I'm having this problem since last month. My computer won't boot properly, aligning lines and lines on the screen saying there's a problem with cpu 1 or cpu 0. I reset all Xram I could find, reset the PMU, changed the battery...
Finally, I used Apple Hardware Test that gave me this message : post/16/64 on mother board at startup. Then, when I run the tests, everything's OK !
I manage to boot from time to time with 10.4.7 only, other installed systems won't do it.
Would anybody have a clue about this ?
Thanks for reading me.
My computer is 4 years old, it worked well until then, I want it back, fully fitted.
I have screen shots that I can share if needed.
BTW : the sun is shing here in Paris, France at the moment, which soothes my heart a little...
G4 QuickSilver bipro 1Ghz Ram 1Go Mac OS X (10.4.7) + Mac Os 9.2.2 + Mac OsX 10.2.x

Hi,
I have some good news for you all : I finally decided to open my machine and see what's inside...
I took a small paint brush, a screwdriver, a pressurized air bomb (hope you call it this way) and cleaned all the inside. I had some parts taken off, even the big thing that gets heat from the processors. My brother, who knows more than I do about the subject even advised me to unplug the processors, supposedly connected on a ZIF card (Zero Insertion Force card). I didn't manage to make them move at all. I took memory bars away, the video card too, to make place for the screwdriver to unlock the (radiator ?). Then I brushed all the dirt away, there was plenty, and put everything back inside.
It works fine, it really does. So, I guess and hope this will last for an other 4 years.
Thanks for the help.
Jacques.
G4 QuickSilver bipro 1Ghz Ram 1Go Mac OS X (10.4.7) + Mac Os 9.2.2 + Mac OsX 10.2.x

Apple Hardware Test Problem Detected

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