Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
July 26th, 2022, 20:47
Does anyone know are those two drive's heads compatible??
The drive need heads replacement:
The donor drive:
Thanks
July 27th, 2022, 1:26
must be compatible
July 27th, 2022, 19:40
Yes they are.
Pro tip: if data is valuable send it to a pro.
July 27th, 2022, 22:56
These are compatible
These drives are also infamous for developing media damage.
July 28th, 2022, 0:32
Just make sure the heads map and PCB are the same.
July 28th, 2022, 8:35
SirForensic wrote:Just make sure the heads map and PCB are the same.
The heads map is the same, the PCB is not but it's ok
July 28th, 2022, 18:36
Doomer wrote:SirForensic wrote:Just make sure the heads map and PCB are the same.
The heads map is the same, the PCB is not but it's ok
How you can be sure about the heads map?
I have been a few times in situations where the model, site code, and serial number first 3-digits match, and still they are using different amounts of heads. This is not common with Seagate drives, but it's surprisingly common with WD drives.
July 28th, 2022, 18:55
SirForensic wrote:Doomer wrote:SirForensic wrote:Just make sure the heads map and PCB are the same.
The heads map is the same, the PCB is not but it's ok
How you can be sure about the heads map?
I have been a few times in situations where the model, site code, and serial number first 3-digits match, and still they are using different amounts of heads. This is not common with Seagate drives, but it's surprisingly common with WD drives.
When that happens you are dealing with a refurbished drive (the one with less heads)
July 28th, 2022, 23:19
SirForensic wrote:How you can be sure about the heads map?
Because I have more than 20 years of experience.
July 29th, 2022, 2:50
SirForensic wrote:Doomer wrote:SirForensic wrote:Just make sure the heads map and PCB are the same.
The heads map is the same, the PCB is not but it's ok
How you can be sure about the heads map?
I have been a few times in situations where the model, site code, and serial number first 3-digits match, and still they are using different amounts of heads. This is not common with Seagate drives, but it's surprisingly common with WD drives.
Wrong ,
Seagates are worse ,WD are a charm to work with
July 29th, 2022, 10:25
If possible, you should check the little white sticker on the head connector (need to open the drive). If it's similar (Patient AGR, donor AGR... and not LSI) it will work.
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- sticker.JPG (15.34 KiB) Viewed 6610 times
July 29th, 2022, 12:29
AG means Agere, which actually was purchased by LSI, which was later purchased by Broadcom
AG=LSI=BR - it's literally the same thing.
July 29th, 2022, 16:50
I have two patient, one donor.
Patient 1 ST2000DM001, 1ER164-044, Z8E preamp B6
Patient 2 ST2000DM001, 1ER164-044, Z8E preamp B6
Donor 1 ST2000DM001, 1ER164-021, Z8E premap B6
All are TK.
Patient 1 head connector sticker= GR4-B AG-R
Patient 2 head connector sticker = GR4-C LSIB2-M
Donor head connector sticker = GR4-B AG-K
Donor is working for Patient 1, not with Patient 2. Back to patient 1, still working. Took a donor with LSIB sticker, it works.
Is Texas Instrument part of it as well ? Maybe I am wrong but it's something I look after and so far it really helps, maybe just luck then.
July 29th, 2022, 17:11
suricate.ch wrote:Donor is working for Patient 1, not with Patient 2. Back to patient 1, still working. Took a donor with LSIB sticker, it works.
Seagate changes heads (the actual RW elements) periodically, so this could be the reason why, check the DOM. Unfortunately this information can only be obtained through trial-and-error or through Seagate's internal database (which is not for us mortals).
Moreover the 1ER164 drive is another family with far more problems than the drive in the topic.
suricate.ch wrote:Is Texas Instrument part of it as well ? Maybe I am wrong but it's something I look after and so far it really helps, maybe just luck then.
Texas Instrument would be marked as TI and it won't be B6
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