Mid 2012 mbp samsung ssd issue on OSX Yosemite 10.10.3

[r3tribut10n]

I have read a problem with both my 256gb/500GB samsung ssd drive's being recognized on my mbp, also disk utility wont recognize it either when i start up internet recovery
If i use my external drive and put the samsung's in they work just fine and can boot from the external drives
The samsung model is model number MZ-7TD500 500GB model and works perfectly in windows as well as externally on macbook, but as soon as i switch i get the folder and question mark issue
I have read up on it and the usual issue is replace the hdd cable, which i have twice now (same seller replaced 1st 1)both times when doing the recovery on the internet it does the same thing, only shows up the optical drive and the file downloaded from apples server
Also i got trim 3.3 and installed that and switched it on but there comes an error message we are unable to verify that the something or other
The 256gb samsung worked perfectly in my old 2009 mbp with Yosemite 10.10.3 and recognized it straight away, after selling and removing the ssd drive i cleared the drive and installed the ssd into this 2012 i cant work out whats wrong

On the optical side it detects and works perfectly fine, the only mod i have done on the mbp 2012 is upgrade the ram to 16gb of crucial?

 

[r3tribut10n]

Trim says patch is active but unable to detect trim status. to make sure trim is enabled check system information

 

[nickbw]

If you are really using Yosemite 10.10.3 then you should know NOT to be using TRIM! They are not compatible and there are official warnings both from Apple and Trim to this effect! Go figure.

 

[r3tribut10n]

I managed to restore in disk utility so the max he and Mac sed drive were copied, I can also boot the ssd drive from an external enclosure, but if I put it back into the Mac internally it won't boot and goes to the folder with question Mark
I have removed trim and re enabled Kent signing

Cable was tested by the guy before he sent me the replacement and was working so can't wait irk out what is going on with the Samsung sed 840, it's not th neck mod l

 

[JTToft]

If you are really using Yosemite 10.10.3 then you should know NOT to be using TRIM! They are not compatible

- Rubbish. While there can be issues if you don't disable it before performing OS updates or when resetting NVRAM/SMC, in all other respects there are no problems at all.

And some people (including myself) have had not a single issue with TRIM - even when not disabling it before updates.
Enabling TRIM is not necessarily a recipe for disaster.


OP: You need to describe your situation, your problems and what you're trying to do a bit more accurately, I think. Your information is all over the place, and it's hard to work out just what you're requesting help with. Also, try to use sentences.

 

[r3tribut10n]

What has happened is i sold my older 2009 mbp which had a working 256gb samsung ssd drive inside, then when i decided to put the samsung into my mid2012 (non retina) it wouldn't recognise it or detect it, it also wouldn't let me format the drive
I tried another samsung ssd drive this time a 500gb and again it wouldn't detect it, and again it wouldn't let me format the drive, but as soon as i put in the original optical drive it detected it straight away and booted up
After reading quite a bit of info from google search on the problem, the general census was that there was an issue with the hdd cable so i bought a replacement and fitted it but again no joy, so contacted the seller and explained the situation, so they tested the cable before sending the replacement and was working fine, i thought great but when i connected it up it would not detect both drives again
I then decided as from reading similar posts to use an external hdd case and format it using the disk utility to journaled file system, which worked then i installed the mountain lion download from apples server, then updated to OS X Yosemite and i could boot the mbp from the external drive no problem at all.

Eventually i decided again to wipe the drive and do a restore from my optical drive to the ssd drive, which also worked but as soon as i took it from the external case into the internal it would not detect it again, but then plugged into the external drive it booted from that without a problem

I have installed the latest trim and installs and tells me to reboot then click the enable switch and this works and boots up BUT when i check in system prefs and look at the drive it does not say trim enabled, even though i disabled kent signing when installing it, after its installed i get the following message from trim "Trim says patch is active but unable to detect trim status. to make sure trim is enabled check system information"

The samsung ssd drive is the MZ-7TD500 500GB model and i couldn't find any problems with the drive on any searches


I have tested the drive on a windows machine and used samsung magician and it says both drives are perfectly fine, so i can't figure out what is wrong, as fitting into the 2009 was done in seconds and OS X updated to the latest without the need of trim???

 

[JTToft]

I'm still hugely confused. Your references to an optical drive don't make sense to me. Do you mean hard drive?

I have installed the latest trim and installs and tells me to reboot then click the enable switch and this works and boots up BUT when i check in system prefs and look at the drive it does not say trim enabled, even though i disabled kent signing when installing it, after its installed i get the following message from trim "Trim says patch is active but unable to detect trim status. to make sure trim is enabled check system information"

- Is this when the SSD is connected externally via USB or internally in the SATA hard drive bay? If externally, there's a very simple answer: TRIM doesn't work at all over a USB connection.

It seems the SSD itself is fine based on it working externally and internally in a PC.

I am going to guess you have a problem with the SATA connection on the logic board itself.
If you're up for it, try connecting the SSD in the DVD drive's place, using something like this: http://eshop.macsales.com/item/OWC/DDAMBS0GB/

 

[duervo]

Put the original drive back into your 2012. If everything works, then you are one step closer to the solution (ie: the problem is the drive ... Most likely firmware-related.) If the original drive displays the same symptom, then problem lies with either the cable (it's possible to get multiple defective cables, especially if sourcing from the same supplier from somewhere like eBay,) or the logic board.

FWIW, you don't "need" trim. It can help performance-wise, but it's not required. Third-party trim support in a Mac is one of those things where I typically suggest: If you are unsure, then don't bother with it. Sounds to me like you should just leave it disabled

 

[JTToft]

Put the original drive back into your 2012. If everything works, then you are one step closer to the solution (ie: the problem is the drive ... Most likely firmware-related.)

- That's far from necessarily true. The hard drive (which is likely SATA II) might very well work even if the SSD (which is SATA III) does not on the same connection. And even if the HDD is SATA III, it might negotiate at a SATA II link speed.

It's quite possible to have a connection that works fine with SATA II but not with SATA III.

FWIW, you don't "need" trim. It can help performance-wise, but it's not required. Third-party trim support in a Mac is one of those things where I typically suggest: If you are unsure, then don't bother with it. Sounds to me like you should just leave it disabled

- I tend to agree with this in the OP's case.

 

[r3tribut10n]

I'm still hugely confused. Your references to an optical drive don't make sense to me. Do you mean hard drive?

Yes sorry it is the internal hard drive

- Is this when the SSD is connected externally via USB or internally in the SATA hard drive bay? If externally, there's a very simple answer: TRIM doesn't work at all over a USB connection.

I didn't realise that

It seems the SSD itself is fine based on it working externally and internally in a PC.

I am going to guess you have a problem with the SATA connection on the logic board itself.
If you're up for it, try connecting the SSD in the DVD drive's place, using something like this: http://eshop.macsales.com/item/OWC/DDAMBS0GB/

I'm currently using the original hard drive now inside the mac, but i can boot the ssd from an external enclosure as well

I bought it just over a month ago on the net, going to see if i can get it booked in with genius tomorrow to confirm your suspicion

Cant understand why the original hard drive works, but none of the ssd drives will if it is the logic board issue you mentioned

----------

Here is some info on the drives in question that may help, up 1st is the external usb case with samsung ssd drive inside
AS2115:

Product ID: 0x1153
Vendor ID: 0x174c (ASMedia Technology Inc.)
Version: 0.01
Serial Number: 00000000000000000000
Speed: Up to 5 Gb/sec
Manufacturer: ASMedia
Location ID: 0x15100000 / 1
Current Available (mA): 900
Current Required (mA): 0
Capacity: 500.11 GB (500,107,862,016 bytes)
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk3
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Not Supported
Volumes:
EFI:
Capacity: 209.7 MB (209,715,200 bytes)
BSD Name: disk3s1
Content: EFI
Volume UUID: 0E239BC6-F960-3107-89CF-1C97F78BB46B
Mac OSX:
Capacity: 499.76 GB (499,763,888,128 bytes)
Available: 461.54 GB (461,541,580,800 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk3s2
Mount Point: /Volumes/Mac OSX 1
Content: Apple_HFS
Volume UUID: F64C30B2-17B2-30F7-81EA-5CDDD92B89EC


And here is the original internal hard drive

APPLE HDD HTS545050A7E362:

Capacity: 500.11 GB (500,107,862,016 bytes)
Model: APPLE HDD HTS545050A7E362
Revision: GG2AB990
Serial Number: TES5193TGAL6SF
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Rotational Rate: 5400
Medium Type: Rotational
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Not Supported
Volumes:
EFI:
Capacity: 209.7 MB (209,715,200 bytes)
BSD Name: disk0s1
Content: EFI
Volume UUID: 0E239BC6-F960-3107-89CF-1C97F78BB46B
disk0s2:
Capacity: 499.25 GB (499,248,103,424 bytes)
BSD Name: disk0s2
Content: Apple_CoreStorage
Recovery HD:
Capacity: 650 MB (650,002,432 bytes)
BSD Name: disk0s3
Content: Apple_Boot
Volume UUID: 4610EAF5-16C9-3D80-B5CC-69BDB9B9DAAA

----------

Also the ssd is sata 3, this is my model

http://www.amazon.com/MZ-7TD500-Internal-Solid-State-Drive/dp/B009NHAF3I

http://www.ebay.com/itm/Samsung-500...?pt=US_Solid_State_Drives&hash=item1e9b926d37

 

[JTToft]

Cant understand why the original hard drive works, but none of the ssd drives will if it is the logic board issue you mentioned

- That could be explained by what i mentioned above in reply to 'duervo'.
It's also a little strange to me that it says "Not supported" under SMART status for the HDD.

Can you just look here for me, and report what it says about the Apple HDD?

 

[r3tribut10n]

Here you go

Intel 7 Series Chipset:

Vendor: Intel
Product: 7 Series Chipset
Link Speed: 6 Gigabit
Negotiated Link Speed: 3 Gigabit
Physical Interconnect: SATA
Description: AHCI Version 1.30 Supported

 

[Tenashus1]

If you are really using Yosemite 10.10.3 then you should know NOT to be using TRIM! They are not compatible and there are official warnings both from Apple and Trim to this effect! Go figure.

Trim works fine for me with the latest Yosemite.

 

[JTToft]

Here you go

Intel 7 Series Chipset:

Vendor: Intel
Product: 7 Series Chipset
Link Speed: 6 Gigabit
Negotiated Link Speed: 3 Gigabit
Physical Interconnect: SATA
Description: AHCI Version 1.30 Supported

- As I suspected, it has negotiated the link speed at SATA II with the hard drive (which is normal and perfectly fine).
It's entirely conceivable that you have a hardware defect that causes problems with SATA III but not with SATA II connections.

Either

1) try your luck with another SATA cable (sourced from a reputable place such as Ifixit), or
2) try the optical bay solution I linked to above.

 

[r3tribut10n]

I have just ordered a replacement cable from ifixiteurope.
I switched over the cables back to the original and it is still showing 3gb, but at least now we are getting somewhere

 

[nickbw]

You have a choice use it or not. However I personally think disabling checking of kernel extensions is unwise. There are many discussions of this of which the following is just one.
https://discussions.apple.com/thread/6844662?start=0&tstart=0
Frankly a more important issue to me is why Apple came to leave out of keyring a vital Experian certificate which is required for SSL.

I now use a hybrid drive which I find the best of both worlds.

 

[r3tribut10n]

I got the cable from ifixiteurope today and it detected it 1st time with correct name etc..and now shows 6gb on both
Link Speed: 6 Gigabit
Negotiated Link Speed: 6 Gigabit

Thanks for that, seems either it's counterfeit or i was given an older cable that couldn't detect sata 3, i have emailed apple with pics and the codesto see which

Another prob i have run into now though is wiping the ssd drive clean internally with diskutility keeps stopping repairing the disk0s2 and is greyed out rather than highlighted

 

[r3tribut10n]

I have wiped my drive clear with partician magic and when i pressed control r to go into recovery mode everything seems to go fine, until i decide to partition my drive with 1 partitan and mac os extended journaled and with guid selected as soon as i press apply the drive comes up with waiting for the disks to reappear
If i quit the app there is a file disk0s1 appears and have to format again, any ideas how to get around this

 

[r3tribut10n]

Anyone?

 

[r3tribut10n]

I have used disk utility to erase the drive and so far it's been 11hrs on a 500gb Samsung ssd 840 anyone know how long it will take?
I'm assuming it is completely being wiped with zero's?

 

[duervo]

Check the cable. It may not be completely seated (doubtful though.) Failing that, put the original drive back in. If you still have problems, it's most likely another crappy cable, or you have a logic board issue.

Also, fwiw, you're actually not "erasing" the SSD with zeros when you do that using Disk Utility. You're filling the drive with data (zeros). It will take a performance hit as a result because you've filled all of the memory cells with data (zeros). SSDs do not store data the same way traditional platter-based HDDs do. They are a different beast.

Plus, it doesn't take over 11 hours to do that to an SSD. It should have been completed ages ago. You still have a hardware issue (either a fault or incompatibility somewhere.)

 

[r3tribut10n]

The cable came with the ir and bracket attached, and was vacuum sealed in silver plastic and looks legit comapired to the other 1 arriving in bubble wrap, and would be surprised if ifixiteurope would sell dodgy stuff

Funny thing is last night I stopped the erase after 3 hrs and it immedatley let me install the OS X from repair mode but as I was downstairs for 20mins ( can't do it with 4yr old hanging around lol) it had I assumed installed the os and installed the update for mountain lion, then I realised I left the gparted software disc in the drive it had rebooted and booted up the software because it couldn't find the drive again
When I got the disc out and rebooted it went to the folder with ? Inside it and so decided to do the erase again and now is on 12hrs and seems to be going

I can't understand why when trying to partition originally with disk utility it kept saying waiting for the disks to reappear, I know there is a sleep mode I the Samsung drive as gparted said it needed to wake the hard drive again and I had to press erase again

I will try swapping out the old drive again but I need had an issue with hat drive just the ssd

I also tried to install the is on the external drive and hat worked, this ssd is getting on my nerves lol

I have also done a apple system test and that showed the machine was running fine




EDIT just stopped the erase after 12 odd hrs and again it's letting me partition correctly, journaled extended and 1 partition and is now installing OS X lion, took a couple of pics this time to show
Will keep a VERY close eye this time to see where it is failing and report back

 

[r3tribut10n]

The drive now installing onto the ssd inside mbp, as it finishes and reboots it goes directly to the folder with?




Here is the current issue, the next 2 pics shows it installing onto the ssd with external enclosure




When i put the ssd drive into the mbp it goes to the folder with question mark, these 2 pics are of the 2 drives (1st is the ssd drive in external enclosure, the 2nd is the original old drive) could the mountain point be the issue here?




Now going to put the ssd drive back in and use the external enclosure for the old drive and try booting both to see what happens

 

[r3tribut10n]

These pics are of the samsung ssd inside the macbook pro and it came up with it couldn't be recognized

 

[r3tribut10n]

I have just done a extensive hardware test on the mac and came back no problems found?