MacBook Pro Random Shutdown with Error Code: 4SNS/1/40000000: TAOP

Hi All,
Hope you can help, I have a 1st gen, MBP which i've recently upgraded the HD to a 500gb. Has been working perfectly until today when it had a few instances of random shut downs and not being able to power up...
Got this error code while checking the Hardware test, but not sure what it actually means : 4SNS/1/40000000: TAOP
Anyone got any ideas?? The HD is fully compatible and has worked flawlessly since installation, but now wondering if it has something to do with that??!
Hope someone can shed some light,
Thanks!
Darren

I too have a MBP 15". After 3+ years of good operation, it's developed a sudden shutoff. It happens when the machine is hot. I can get it happen often if playing a web video in Safari.
I've also run AHT and got error 4SNS/1/40000000: TCOP
Troubleshooting:
I used the widget iStat and the utility smcFanControl to monitor the CPU temperature and fan speeds. I found a direct correlation between CPU temperature spikes, fan speed, and shutdowns. My machine shutdown/failed immediately if the CPU spiked for 2 seconds above 120 Celcius - that's a hot spike. I think it's a safety shutdown.
By using the smcFanControl, I could nearly eliminate the shutdown by forcing the CPU fans to run full speed (6,000 RPM). This way, I could keep the temperature between 68-100 Celsius. However, I could still create conditions using multiple web video playback in Safari & Firefox that could spike the temp above 120 C. I found that running fans at full speed were not enough. Something additional must be wrong regarding heat transfer or sensing. So, I'm guessing the thermal grease on the CPU heatsink is old/dry/cracked. Or, there is dust/link blocking the airflow. Or, there is a design flaw with the heatsink so that it is insufficient to cool or monitor the CPU temperature properly. Not sure yet.
I see on other forums that there is a new heatsink design and part number. The design has better thermocouple placement. And, if replaced, it will have new thermal grease.
My question is: How can I purchase a new replacement heatsink for my MBP? Anybody know part numbers or vendors?

Similar Messages

Crash on start up. Ran hardwear test got error code: 4SNS/1/40000000:IC0C-65.828

Have Mac Pro 13" crash on start up. I ran hardwear test got error code: 4SNS/1/40000000:IC0C-65.828
Mac is only 1.5 yrs old and out of warranty. I searched the net and found code= CPU0 problem but don't know if accurate. If CPU problem I guess a new logic board? I am pretty shocked I have a hardwear prob like this. Any ideas?

no one knows exactly what those codes mean except Apple techs. A guide/key explaining those codes has not been made public. While others in here can make vague gueses as to what it may be, you really need to bring your mac to an Apple store or AASP for evaluation.

Extreme Fan Speed (Error Code: 4SNS/1/40000000:Tp0P-131.000)

My 20" 2.4GHz Intel Core 2 Duo Aluminum iMac was purchased on 3/21/08 and it was perfect up until about the end of November. Now upon immediate boot up the CPU fan runs up to 3500 rpm for no apparent reason. At first this problem would only happen every now and then, but now it does it every single time. I've tried several things like reseting the PRAM and the SMC and that would work at first, but that doesn't do anything now. I ran the Apple Hardware Test and I got an error code (4SNS/1/40000000:Tp0P-131.000) when the fan was running at 3500 rpm, but when I ran the Apple Hardware Test when the fan was running at normal speed no error code came up. I recently took my iMac to an Apple Store and they looked at it and kept it for about a week and they said they could not find anything wrong with it and told me it was "normal" for the fans to speed up every now and then when it needs to cool down, but why would it need to cool down when I just booted it up and have no applications running? They told me that it could be a logic board problem or fan problem and they ordered the parts, but did not replace anything due to them not being able to find a problem. This problem has become extremely annoying cause the fan is quite loud and I absolutely loved the silence of the iMac when it was brand new. I don't have AppleCare, but my iMac is still under the 1 year warranty and I'm starting to feel that the only way Apple will do anything about this problem is if I purchase AppleCare. So has anyone else encountered this problem and if you have were you able to get it taken care of cause I'm getting extremely tired of this fan noise and I'm in desperate need of a solution.
iStat Screencap
http://i34.tinypic.com/213oqx3.jpg

I gave them the error code when I took it in and they just kind of shrugged it off and days later they called saying they ran several extended tests and were not able to detect anything wrong or reproduce my problem, but I remember the guy at the Genius Bar was able to reproduce the problem.

Solution for error code: 4SNS/1/40000000/IBOR-9.426

My computer recently has been running at its best. I did a diagnostic and gave me an error code 4SNS/1/40000000/IBOR-9.426. I wanted to get an idea what this means and what is the solution?

That indicates an internal sensor failure. You will have to take your MBP to an Apple store genius bar for repairs.
Ciao.

Hardware Error Code 4SNS/1/40000000:Th 1 H-83.625

I have been having issues with my mid 2009 13" MacBook Pro since the day I bought it. When running games I have lag even though my system specs are above the games recommended requirements At first I thought is was not a big deal so I ignored it. Its been getting worse now games that used to run fine are slowing down. A firend of mine has the same exact computer and specifications as I have and has no issues what so ever running any games. I just ran a hardware test and received this error. 4SNS/1/40000000:Th 1 H-83.625
Can anyone help?

You mean aside from my typo?
There are several temperature sensors in the computer that monitor the GPU, CPU, hard drive, memory temperatures. They tie into the SMC chip that controls the fans. As temperatures rise internally the SMC will increase fan speeds to keep the computer cool. A failed sensor could result in allowing something to overheat without increasing fan speed or cause the SMC to run the fans at top speed continuously.
The error information tells the service tech what and where the problem is so they can repair it properly.

Error Code 4SNS/1/40000000: TOOP

Hello
everybody this is my fisrt time on the apple forum and i hope i have come to the right place to post this topic.
i have this problem with a 20" 2.4ghz 3gb ram 320gb hard drive.the optical drive fan started to run high a couple of months ago (approx 3000rpm) under heavy computer use (ie lots of apps running) Ran the Apple Hardware test and the error
message 4SNS/1/40000000: TOOP comes up.
does anybody know what the fault is and how to rectify it.
I replaced the optical drive thermal sensor cable and the problem still exists.
thank you
Darren

Welcome to Apple Discussions.
After Googling your error code it seems like it's related to the fans not operating correctly. You probably did not fix the problem and may have missed putting it back together correctly or damaged a connection. Either way it will need to be taken apart to see where the problem is. You can attempt doing a SMC and PRAM resets however I doubt they would help out.
If you can't figure it out take the machine into a AASP to be looked at by a professional.
Roger

What does AHT error code 4SNS/1/40000000:TB1T-128.000 mean?

My MacBook froze on me last night while running Firefox w/ 4 windows open, each with 6 or more tabs. Seemed partly due to using the instant message ap on Facebook. The machine forze with the beach ball spinning it's heart out. Shut it down, restarted, and got a freeze during start up. Tried again this morning and the machine seemed to run ok for a session, after which I closed the lid without shutting down. After opeing the lid, the machine ran ok, then slow, then froze. I eliminated peripheral problems, eliminated software problems, then ran an Apple Hardware Test.
It produced the code: 4SNS/1/40000000:TB1T-128.00
This code does not show up in Google or this forum. Any idea what it means or where I may find out what it means? It's a late 2008 MacBook, so no warranty whatsoever.
Thanks in advance for any help!
Kermit

I ran the hardware test on my MacBook unibody and got the same result. Did you ever get an answer as to what this code means? I haven't been able to Google it either.

I have a MacBook Pro that gave me a hardware error code 4SNS/1/40000000:Th 1H-81.000. What does this mean?

My USBs ports are charging all devices like my iPod and my back-up external Hard Drive but the Mac does not recognise any of them.
The Hardware Test showed the following error: 4SNS/1/40000000:Th 1H-81.000.
What does this mean?
Thanks!

Thanks for the prompt reply Kappy...
Does this mean I have to hand in my Mac for repair or is there a way to solve it independently?
Cheers!

Mid-2010 MacBook Pro random shutdown

Hi all, hoping you can help me with my very annoying shutdown issue. Sometimes it will happen within minutes of boot and sometimes the MBP will run for several hours without issue before it happens.
I've been able to replicate the shutdown across OSes (Snow Leopard, Lion, Mountain Lion). Initially I thought it might be bad memory but through swapping memory and running the AHT on a loop for several hours I've determined memory isn't the issue. I've reset the NVRAM, PRAM and SMC several times with no luck. Hard drive and battery is working properly and the AHT is finding no errors with the logic board. Pretty sure I've tried everything I can before bringing it in for service. And of course I'm just past the 3 year warranty date. Help!

You have the MacBookPro6,2, the Edsel of Macs. It may be covered by this program:
MacBook Pro (15-inch, Mid 2010): Intermittent black screen or loss of video
Make a "Genius" appointment at an Apple Store to have the machine tested. The routine hardware diagnostics used by service providers may not detect the fault. There is a specific test for this issue.
Print the first page of the panic report, and the support page linked above, and bring them with you.
Note that the replacement program only applies within three years of purchase. If you wait beyond that date, Apple may refuse the service. In that case, you'll be quoted a price of about $300 (in the U.S.) for a depot repair.
Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
*An SSD doesn't need to be zeroed.
You may be able to stop the panics by disabling automatic graphics switching in the Energy Saver preference pane, but that's not a solution.
Most likely, the logic board will be replaced. Sometimes the replacement part is also defective, so be prepared for that possibility.

1 yr old Macbook pro random shutdowns on or off power

I have a MacBook pro thats about 1 year old, Mac OS X 10.6.8, completely updated, 2.66 GHz Intel Core i7.
It is randomly shutting down for no apparent reason... it happens about once a day, sometimes on the power sometimes when it's not, the battery time doesn't act strange at all, the temperature seems to be fine when it happens as well, between 60-70c like always. The screen goes blank, doesn't respond to anything i do, all lights are off, and then I hold down the power button and it makes a pop noise. I then turn it on again and its fine, and gives me an error report. It doesn't seem to be associated with any application... happens when I have just chrome open, just firefox, entourage, or word, any combination of those...Any ideas? It is definitely worrying me, especially since my warranty is pretty much just at the end of it's rope.

Sounds like a power supply problem (not portable power supply), but I wouldn't want to bet on the specific issue. I realize that your MBP is not in warranty, but you might do well to visit your local Genius Bar to get their input.
This is an interesting problem; post here with the results.

New Macbook Pro - Random Shutdowns

I got a 15" MacBook Pro 2 months ago and today I started having lots of problems. The macbook will start and then after a few minutes, it will randomly shut down. After each shutdown I cannot start the computer again. Pressing the power button does nothing. After about 5 minutes of shutting down the computer will start again on its own and then shutdown again in a few minutes. And the cycle continues like that. This happens while the macbook is plugged in as well.
I do not think it is a battery problem because I removed the battery and turned it on while it is plugged in and still it is the same problem. I don't think it is a software issue because the same problem happens when I boot in both Mac OSX and Windows XP. Anyone have this problem?

Hi dennyhle,
Boot up from the osX dvd holding down the 'c' key, wait for the language screen to come up, pick a language and then from a menu choose Disk Utility and check the permissions and the drive for errors.
If the problem remains after that boot up from the osX dvd again but this time hold the 'd' key to start the hardware test, run an extensive one.
Hope this helps.

I killed a MacBook Pro. Shutdown with flash in drive and now it won't start at all.

I may have killed my MacBook Pro OS X by accidentally restarting with a Flash Drive it it and now it won't start at all. Any ideas?

So it is powering on. You did not state that before. In that case:
Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Also see this if above doesn't work:
Install OS X from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
      the Security button and set the Zero Data option to one-pass. Click on
      the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
           because it is three times faster than wireless.
This should install the original version of OS X that came on the machine.

MacBook Pro Random Shutdowns

Hi all,
My MacBook Pro has just recently begun randomly shutting itself down. I'm not sure why, but I have gathered that it's a known issues. Here are the specs on my laptop:
-2.4Ghz intel core 2 duo
-4GB of RAM
-500GB HD
-Nvidia 8600M GT graphics
I forgot exactly which model this is, but I've had it for a good two years now. The warranty ran out last January, and I had the logic board, disc drive, and screen all replaced by Apple right before it did. I am already on my second battery, and this one has lasted just over a year. These things suck. Here is the battery info:
Battery Information:
Model Information:
Manufacturer:    SMP
Device name:    ASMB012
Pack Lot Code:    0002
PCB Lot Code:    0000
Firmware Version:    0110
Hardware Revision:    0500
Cell Revision:    0200
Charge Information:
Charge remaining (mAh):    1323
Fully charged:    No
Charging:    No
Full charge capacity (mAh):    2435
Health Information:
Cycle count:    538
Condition:    Replace Now
Battery Installed:    Yes
Amperage (mA):    -1995
Voltage (mV):    11193
It switches back and forth from "replace soon" to "replace now". I realize the cycle count is very high and it is past it's lifetime apparently.
So, my two questions are: why is my computer randomly shutting down? I think it could be the battery or the logic board. And is there a recommended this-party battery that is better than the Apple ones? Not only are those $130, but they do not last long at all. Between the two, I'm hoping it's the battery.
Thanks in advance!

Unfortunately, many MacBook Pros of the Core 2 Duo generation instead of going to sleep properly when the battery voltage drops below a particular threshold just shut themselves off instead. It's always been unclear whether this is due to the battery misreporting its voltage or some other cause.
As you've likely surmised, the only fix is to replace the battery, at which time your machine should properly go to sleep when the battery charge gets too low.
Note that you do have to care for your battery as well; it will help it last longer but nothing will fix the fact that batteries will only last a certain number of cycles.
Apple's suggestions on the topic can be read here.

MacBook Pro Random Shutdown. What's wrong? What can I do?

I just got a Macbook Pro 15" i5 about a month ago, but something weird has been going on. A couple of days after use I was using my computer and closed it for a few hours. When I came back to it, and opened the lid, it was no longer on. I thought I may have shut it down and forgot, but then it happened a couple of times again. It hasn't happened in the past week, so I thought it may be okay now. But I've recently (last couple of days) been watching things on my laptop and it seems that when the laptop is jogged, the video seems to pause. I thought it might be something I'm doing, but I never had this problem with my old mac. I think I should go to the store to get it fixed, but I was wondering what the issue is and whether I can do anything to correct it. It seems to me that it's a hardware issue and the laptop is somewhat unstable, but I was wondering if anyone had any insight. Thanks for your help. =D
Message was edited by: NintendoMad8

Yeah, I was already planning too. But I was wondering if anyone can provide any insight before I do. Or if anyone else has experienced this issue. Plus, I was wondering...if I just go down there will they be able to do anything, or will they make me book an appointment with the Genius Bar?
(Also, what is AASP?)
Message was edited by: NintendoMad8

Macbook pro random shutdown "are you sure you want to shut down?"

Firstly, I'm asking this on behalf of my boyfriend who would ask himself if his computer were working!
His MacBook Pro 2.2GHZ new since July07 has just now, when started up, started displaying the shutdown message "are you sure you want to shut down?" and then shutting down anyway. Without being asked or prompted.
This has happened everytime it has been switched on after a couple of minutes it will just do it over again. It is fully charged.
Absolutely no idea what to do other than to take it down to the Mac Store and get it looked at.
If anyone has any help or advice it would be greatly appreciated,
thanks in advance. Charlie

Ok thought i had this fixed myself, i put it down to over heating as it was just acting normally for the last couple of hours but having just turned it off and started shutting everything down for the night it turned itself on!
I think i solved this by shutting the laptop but this has never happened before. I really hope someone can help, I've googled the problem to no avail and this is pretty much my last hope.
Thanks again
Charlie

MacBook Pro Random Shutdown with Error Code: 4SNS/1/40000000: TAOP

Similar Messages

Maybe you are looking for