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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
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Head compatibility between slightly different models

April 17th, 2016, 23:48

Hi Gurus

Is there any chance heads would be compatible between two slightly different models, like these?

Patient
WD 1.5tb
WD1502FYPS-02W3BO
DCM: HBRCHV2CAB
Date: 16 Sept 2010
Thailand

Donor
WD 2tb
WD2002FYPS-02W3BO
DCM: HBNCHV2AAB
Date: 15 Dec 2010
Thailand

Thanks

Re: Head compatibility between slightly different models

April 18th, 2016, 0:42

Those look like a good match. It is helpful to include the first few characters of the serial number.

Head maps are critical. You can usually use a 2 TB head stack on a 1.5 TB drive, but sometimes the smaller drive head stacks won't work if they are missing heads or have bad heads (compared to the larger drive).

For example, a heads map of 0,1,2,5,6,7 with six physical heads will work to replace a drive with a heads map of 0,1,5,6,7, and five physical heads, but I wouldn't usually attempt the reverse. However, if the smaller drive has six heads, then often it is OK to use it on the larger capacity drive.

Sometimes a manufacturer will truncate a drive's capacity because of a heads / platter issue. Other times they simply don't use one or more (good) heads to meet a production requirement. You generally don't know which.

Confused yet? :-)

Re: Head compatibility between slightly different models

April 18th, 2016, 3:40

If you upload the ROM maybe someone "might" examine the necessary details for you

Re: Head compatibility between slightly different models

April 18th, 2016, 9:20

Taserx wrote:Hi Gurus

Is there any chance heads would be compatible between two slightly different models, like these?

Patient
WD 1.5tb
WD1502FYPS-02W3BO
DCM: HBRCHV2CAB
Date: 16 Sept 2010
Thailand

Donor
WD 2tb
WD2002FYPS-02W3BO
DCM: HBNCHV2AAB
Date: 15 Dec 2010
Thailand

Thanks


Hi,
What Tools Do You Have ,Can You Let us Know The Headmap ? . Also Might Be Preamp Vendor And Rev

Re: Head compatibility between slightly different models

April 18th, 2016, 13:00

jono-ats wrote:Confused yet? :-)


Actually more or less makes sense, thanks for the info. :)

I'm helping find the donor but not doing the work myself. A second hand 1.5tb drive seems impossible to find other than extremely expensive examples so I thought of maybe trying a different sized drive in the same family. I'll find out what equipment they have.

Re: Head compatibility between slightly different models

April 18th, 2016, 13:37

Taserx wrote:
jono-ats wrote:Confused yet? :-)


Actually more or less makes sense, thanks for the info. :)

I'm helping find the donor but not doing the work myself. A second hand 1.5tb drive seems impossible to find other than extremely expensive examples so I thought of maybe trying a different sized drive in the same family. I'll find out what equipment they have.


Gentlemen ,
Same Preamp Vendor + Rev And Proper Compatiable Headstack " Same Heads Or More " ,Thats All Thats Needed
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