Apple Hardware Test giving "4MEM" errors

zevimetal · 08-09-2009, 06:15 AM

Hi.

I ran Apple Hardware Test 3 times and got the following error messages:

Pass1: 4MEM/6/40000000: 13360004
Pass2: 4MEM/4/40000000: 111c4004
Pass3: 4MEM/4/40000000: 1644d700

I have no idea what this means. Can anyone help?

machine: Macbook 1,83GHz Intel Core 2 Duo
OS: 10.5.7

2GB of RAM from crucial.com installed

Thanks.

DeltaMac · 08-09-2009, 07:19 AM

The hardware test is showing a 'mem' failure code, or a memory failure. It doesn't necessarily mean that you have a bad memory chip. Try removing and firmly reseating both of your memory sticks (swap the memory chips between the slots as another good step), then run the hardware test again.

If you get a failure code again, try removing just one chip at a time, and run the test again. You should be able to find just one chip to blame.

It's also likely that reseating both chips the first time may clear that test code completely.

appleman_design · 08-09-2009, 09:34 AM

I would also try installing the apple memory that came w/ the macbook.
crucial is a good memory company, but that can ship bad memory like the rest of them.

trevor · 08-10-2009, 03:04 PM

Yes, and Apple can ship bad memory too.

Trevor

zevimetal · 08-13-2009, 10:24 AM

I have been through some problems envolving I/O erros while cloning my internal HDD with CCC or SuperDuper! Drag and drop from the Finder also gives I/O errors (Error -36) in the same files that CCC or SupeDuper! also get the error.

I ran Apple Hardware Test 3 times and got the following error messages:

Pass1: 4MEM/6/40000000: 13360004
Pass2: 4MEM/4/40000000: 111c4004
Pass3: 4MEM/4/40000000: 1644d700

No clue what this messages mean.

I ran Disk Repair from the Leopard DVD and everthing went smoothly. Verify Disk from Dik Utility in Leopard says that there's no problem with the disk.

Still, the same errors with the same files (about 5% of my entire files), be it music, images or application specific files in the computer librabry, continue to happen.

machine: Macbook 1,83GHz Intel Core 2 Duo
OS: 10.5.7 (now 10.5.8).

Does this sound like physical disk damage? Would'nt Disk Utility notice that?
Thanks.

anika123 · 08-13-2009, 11:16 AM

Is this the same machine and error from your other thread on 8/09/09

http://forums.macosxhints.com/showth...00%3A+13360004

hayne · 08-13-2009, 11:46 AM

Quote:

Originally Posted by anika123


	Is this the same machine and error from your other thread on 8/09/09 http://forums.macosxhints.com/showth...00%3A+13360004

In any case, it is the same problem, so I'm going to merge the two threads.

DeltaMac · 08-13-2009, 02:22 PM

You might have hard drive problems, but you need to get your memory problems sorted out first. Those Hardware test errors indicate problems with your RAM memory. Try firmly reseating those memory chips, and run the hardware test again. If you still get the MEM error codes, remove one chip, and try the test again with only one chip. If you still get an error, remove that chip and install the other, and try the test again. One of those tests should finish with no error codes (hopefully), and you will know which chip is bad - and then you can replace that one.
If you continue to get failures, it's not too likely that you have two bad chips at the same time, and you may have other hardware problems. If you get that memory completely working, it's possible that your other problems may vanish.
note: an I/O error may simply be a failing hard drive, so you may have two different faults. Get your memory working first, then test your hard drive....

zevimetal · 08-14-2009, 10:36 AM

Quote:

Originally Posted by anika123


	Is this the same machine and error from your other thread on 8/09/09 http://forums.macosxhints.com/showth...00%3A+13360004

Yes it is.

zevimetal · 08-14-2009, 10:47 AM

Okay, I don't doubt I have to fix the RAM problems. But the thing is I cloned my original internal HDD just yestarday, with these same RAM chips. Everything without problems. Could it be the RAM that's making the I/O errors in precisely always the same files while cloning, and also causing the same files not to open. I understand to little of hardware but this sound more like disk problems due to being always the same files that cause problems. If it were RAM related wouldn' the errors be on ramdom files? Or would the RAM "choose" "oh let me not open always that specific file on that specific hardrvive"?

I guess that cloning another drive without problems, while using the same memory chips should be a pretty good test as to whether this I/O errors are RAM related, no? I also cloned an external drive (not a bootable one) with about 150GB of data with no problems (again using these same memory chips).

baf · 08-14-2009, 11:14 AM

As long as you have the memory problems you cant be sure of anything. A cloning might look like its working but some files are corrupt. If you are fortunate it will bomb and stop.
So once again fix the memory problems first otherwise it is no use.

zevimetal · 08-14-2009, 01:34 PM

Apple Hardware Test just finished. The following errors were reported:

1 chip: 4SNS/1/40000000: TBOT
the other chip: 4SNS/1/40000000: TBOT
both chips: 4MEM/6/400000004afb400c

Days ago I did the test with the original 256MB chips (both of them) and the same error as now with one 1GB chip only.

baf · 08-14-2009, 01:47 PM

Well
SNS means sensor and I guess that TBOT means that the temperature sensor at the bottom is bad.

But the mem error. Did you use the same slot when you tested the memories one by one?
If you did try the other slot it might be a problem with that slot.

zevimetal · 08-14-2009, 02:04 PM

I used different slots for the different chips.

I'm now running the computer on the original 256MB chips and the same I/O erros occur copying precisely the same files (Error-36). This further reasures me that these errors are not related to RAM. More oppinions?

Thanks.

baf · 08-14-2009, 02:29 PM

What is the smart status for the harddrive?

anthlover · 08-14-2009, 09:29 PM

Not to repeat what everyone is telling you but bad ram is bad***. It can cause file corruption on your hard drive it can cause crashing. Return memory from where you bought it. Memory from reputable companies comes with a life time warranty.

Get RAM that works evaluate from there. You may have other problems but until you correct your RAM problem everything you do is a risk to your data. Note it is possible you have other problems like logic board (the main board that houses the CPU and other chips).

You might try to find a reputable dealer that will evaluate your machine for free. In NYC there is Tek Serve. Apple will do it but reserves the right to charge you $100 if the computer is not under warranty/Apple Care. And of course your worse case scenario option is to buy a new computer. You could buy a refurb one from the Apple Store or new (New macbooks start at $999 [There is at this moment an Aluminum refurb selling for $899]). I would recommend Aluminum.

Please note many dealers including Apple will ask you to back up first which if you have done so already is not an option, unless you remove the drive and install it in a case and do it from another computer.

Good Luck.

DiegoLB · 03-31-2013, 12:38 PM

Hello, I have a similar error to report but at the same time my internal DVD drive is not responding-- the "tray" is "stuck" open and discs (CD/DVD) do not stay inside as the mechanism won't work. Thus I ran AHT trying to figure out if said test reported a DVD drive error. To my surprise I got the following report.

Ran the AHT 3 times, with similar results:
1) 4MEM/62/40000000: 0x846ee518 (OSX 10.8.3)- First test, ran machine from my upgraded OSX
2) 4MEM/62/40000000: 0x846f0218 (OSX 10.8.1)- Second test, ran machine on reinstalled OSX (Upgraded again to 10.8.3 after second run).
3) 4MEM/62/40000000: 0x841ad618 (OSX 10.8.3)- Third test ran AHT from external drive running latest OSX to similar results.

I have not tried AHT after switching memory, will do so shortly.

Other than my DVD drive not responding, I have not perceived any other weird issues in spite of using my laptop every day for many hours at a time.

Machine specs:
MacBook Pro 15" (early 2011) / 8Gb RAM (ORIGINAL 4Gb) / ATA 500 Gb disk / SuperDrive.

Any clues as to what the error means, and why my DVD drive won't "close"?

Thanks.

DeltaMac · 04-01-2013, 11:28 AM

The error means that your memory is not successfully passing the hardware test.
Try reseating the RAM, swap both chips in the slots, and double-check that both are fully seated - which may need a push that is firmer than you expect to be correctly seated.
If you still get the same error, swap back to your old chips and try the test again.

A strange problem with the RAM, or the memory bus, may show up in other results, and can often be the cause for some really odd symptoms - for example, your DVD drive errors. Hardware resets might help...
Have you tried both a PRAM, and an SMC reset?
http://support.apple.com/kb/HT3964
http://support.apple.com/kb/PH11243
Be sure to try both.

Is all your memory recognized by the system?
Look in About This Mac, and also your System Information/Memory tab.
The Diagnostics tab might also show a problem with the memory, because the memory is tested each time you restart your Mac.

08-09-2009, 06:15 AM	#1
zevimetal Prospect Join Date: Aug 2007 Posts: 45	Apple Hardware Test giving "4MEM" errors Hi. I ran Apple Hardware Test 3 times and got the following error messages: Pass1: 4MEM/6/40000000: 13360004 Pass2: 4MEM/4/40000000: 111c4004 Pass3: 4MEM/4/40000000: 1644d700 I have no idea what this means. Can anyone help? machine: Macbook 1,83GHz Intel Core 2 Duo OS: 10.5.7 2GB of RAM from crucial.com installed Thanks. Last edited by zevimetal; 08-09-2009 at 06:19 AM.

08-10-2009, 03:04 PM	#4
trevor Moderator Join Date: Jun 2003 Location: Boulder, CO USA Posts: 19,854	Yes, and Apple can ship bad memory too. Trevor __________________ How to ask questions the smart way \| Pssst. Wanna play some FuMafia?

08-13-2009, 10:24 AM	#5
zevimetal Prospect Join Date: Aug 2007 Posts: 45	Damaged Hardrive? I have been through some problems envolving I/O erros while cloning my internal HDD with CCC or SuperDuper! Drag and drop from the Finder also gives I/O errors (Error -36) in the same files that CCC or SupeDuper! also get the error. I ran Apple Hardware Test 3 times and got the following error messages: Pass1: 4MEM/6/40000000: 13360004 Pass2: 4MEM/4/40000000: 111c4004 Pass3: 4MEM/4/40000000: 1644d700 No clue what this messages mean. I ran Disk Repair from the Leopard DVD and everthing went smoothly. Verify Disk from Dik Utility in Leopard says that there's no problem with the disk. Still, the same errors with the same files (about 5% of my entire files), be it music, images or application specific files in the computer librabry, continue to happen. machine: Macbook 1,83GHz Intel Core 2 Duo OS: 10.5.7 (now 10.5.8). Does this sound like physical disk damage? Would'nt Disk Utility notice that? Thanks.

08-14-2009, 10:47 AM	#10
zevimetal Prospect Join Date: Aug 2007 Posts: 45	Okay, I don't doubt I have to fix the RAM problems. But the thing is I cloned my original internal HDD just yestarday, with these same RAM chips. Everything without problems. Could it be the RAM that's making the I/O errors in precisely always the same files while cloning, and also causing the same files not to open. I understand to little of hardware but this sound more like disk problems due to being always the same files that cause problems. If it were RAM related wouldn' the errors be on ramdom files? Or would the RAM "choose" "oh let me not open always that specific file on that specific hardrvive"? I guess that cloning another drive without problems, while using the same memory chips should be a pretty good test as to whether this I/O errors are RAM related, no? I also cloned an external drive (not a bootable one) with about 150GB of data with no problems (again using these same memory chips). Last edited by zevimetal; 08-14-2009 at 10:52 AM.

08-14-2009, 11:14 AM	#11
baf MVP Join Date: Jun 2007 Location: Skellefteå, Sweden Posts: 1,173	As long as you have the memory problems you cant be sure of anything. A cloning might look like its working but some files are corrupt. If you are fortunate it will bomb and stop. So once again fix the memory problems first otherwise it is no use. __________________ /Bengt-Arne Fjellner IT-Administrator Luleå university, Sweden. Some say: "You learn as long as you live". My way: "You live as long as you learn".

08-09-2009, 07:19 AM	#2
DeltaMac League Commissioner Join Date: Jan 2002 Posts: 8,531	The hardware test is showing a 'mem' failure code, or a memory failure. It doesn't necessarily mean that you have a bad memory chip. Try removing and firmly reseating both of your memory sticks (swap the memory chips between the slots as another good step), then run the hardware test again. If you get a failure code again, try removing just one chip at a time, and run the test again. You should be able to find just one chip to blame. It's also likely that reseating both chips the first time may clear that test code completely.

08-09-2009, 09:34 AM	#3
appleman_design Hall of Famer Join Date: Apr 2004 Posts: 2,550	I would also try installing the apple memory that came w/ the macbook. crucial is a good memory company, but that can ship bad memory like the rest of them.

08-13-2009, 11:16 AM	#6
anika123 All Star Join Date: Sep 2006 Posts: 860	Is this the same machine and error from your other thread on 8/09/09 http://forums.macosxhints.com/showth...00%3A+13360004

08-13-2009, 02:22 PM	#8
DeltaMac League Commissioner Join Date: Jan 2002 Posts: 8,531	You might have hard drive problems, but you need to get your memory problems sorted out first. Those Hardware test errors indicate problems with your RAM memory. Try firmly reseating those memory chips, and run the hardware test again. If you still get the MEM error codes, remove one chip, and try the test again with only one chip. If you still get an error, remove that chip and install the other, and try the test again. One of those tests should finish with no error codes (hopefully), and you will know which chip is bad - and then you can replace that one. If you continue to get failures, it's not too likely that you have two bad chips at the same time, and you may have other hardware problems. If you get that memory completely working, it's possible that your other problems may vanish. note: an I/O error may simply be a failing hard drive, so you may have two different faults. Get your memory working first, then test your hard drive....

08-14-2009, 01:34 PM	#12
zevimetal Prospect Join Date: Aug 2007 Posts: 45	Apple Hardware Test just finished. The following errors were reported: 1 chip: 4SNS/1/40000000: TBOT the other chip: 4SNS/1/40000000: TBOT both chips: 4MEM/6/400000004afb400c Days ago I did the test with the original 256MB chips (both of them) and the same error as now with one 1GB chip only.

08-14-2009, 01:47 PM	#13
baf MVP Join Date: Jun 2007 Location: Skellefteå, Sweden Posts: 1,173	Well SNS means sensor and I guess that TBOT means that the temperature sensor at the bottom is bad. But the mem error. Did you use the same slot when you tested the memories one by one? If you did try the other slot it might be a problem with that slot. __________________ /Bengt-Arne Fjellner IT-Administrator Luleå university, Sweden. Some say: "You learn as long as you live". My way: "You live as long as you learn".

08-14-2009, 02:04 PM	#14
zevimetal Prospect Join Date: Aug 2007 Posts: 45	I used different slots for the different chips. I'm now running the computer on the original 256MB chips and the same I/O erros occur copying precisely the same files (Error-36). This further reasures me that these errors are not related to RAM. More oppinions? Thanks.

08-14-2009, 02:29 PM	#15
baf MVP Join Date: Jun 2007 Location: Skellefteå, Sweden Posts: 1,173	What is the smart status for the harddrive? __________________ /Bengt-Arne Fjellner IT-Administrator Luleå university, Sweden. Some say: "You learn as long as you live". My way: "You live as long as you learn".

08-14-2009, 09:29 PM	#16
anthlover Hall of Famer Join Date: Apr 2003 Posts: 3,620	Not to repeat what everyone is telling you but bad ram is bad**. It can cause file corruption on your hard drive it can cause crashing. Return memory from where you bought it. Memory from reputable companies comes with a life time warranty. Get RAM that works evaluate from there. You may have other problems but until you correct your RAM problem everything you do is a risk to your data. Note it is possible you have other problems like logic board (the main board that houses the CPU and other chips). You might try to find a reputable dealer that will evaluate your machine for free. In NYC there is Tek Serve. Apple will do it but reserves the right to charge you $100 if the computer is not under warranty/Apple Care. And of course your worse case scenario option is to buy a new computer. You could buy a refurb one from the Apple Store or new (New macbooks start at $999 [There is at this moment an Aluminum refurb selling for $899]). I would recommend Aluminum. Please note many dealers including Apple will ask you to back up first which if you have done so already is not an option, unless you remove the drive and install it in a case and do it from another computer. Good Luck. Last edited by anthlover; 08-14-2009 at 09:36 PM.*

03-31-2013, 12:38 PM	#17
DiegoLB Registered User Join Date: Mar 2013 Posts: 1	Apple Hardware Test giving "4MEM" errors Hello, I have a similar error to report but at the same time my internal DVD drive is not responding-- the "tray" is "stuck" open and discs (CD/DVD) do not stay inside as the mechanism won't work. Thus I ran AHT trying to figure out if said test reported a DVD drive error. To my surprise I got the following report. Ran the AHT 3 times, with similar results: 1) 4MEM/62/40000000: 0x846ee518 (OSX 10.8.3)- First test, ran machine from my upgraded OSX 2) 4MEM/62/40000000: 0x846f0218 (OSX 10.8.1)- Second test, ran machine on reinstalled OSX (Upgraded again to 10.8.3 after second run). 3) 4MEM/62/40000000: 0x841ad618 (OSX 10.8.3)- Third test ran AHT from external drive running latest OSX to similar results. I have not tried AHT after switching memory, will do so shortly. Other than my DVD drive not responding, I have not perceived any other weird issues in spite of using my laptop every day for many hours at a time. Machine specs: MacBook Pro 15" (early 2011) / 8Gb RAM (ORIGINAL 4Gb) / ATA 500 Gb disk / SuperDrive. Any clues as to what the error means, and why my DVD drive won't "close"? Thanks.

04-01-2013, 11:28 AM	#18
DeltaMac League Commissioner Join Date: Jan 2002 Posts: 8,531	The error means that your memory is not successfully passing the hardware test. Try reseating the RAM, swap both chips in the slots, and double-check that both are fully seated - which may need a push that is firmer than you expect to be correctly seated. If you still get the same error, swap back to your old chips and try the test again. A strange problem with the RAM, or the memory bus, may show up in other results, and can often be the cause for some really odd symptoms - for example, your DVD drive errors. Hardware resets might help... Have you tried both a PRAM, and an SMC reset? http://support.apple.com/kb/HT3964 http://support.apple.com/kb/PH11243 Be sure to try both. Is all your memory recognized by the system? Look in About This Mac, and also your System Information/Memory tab. The Diagnostics tab might also show a problem with the memory, because the memory is tested each time you restart your Mac.