Hello all,

(important data to recover)

HD drive : MAXTOR Sata 200 GB , model 6V200EO clicks (heads knocking against centre) inside on startup
- not detected by BIOS
- and no PC will boot when this data HD is plugged in (trials on several machines).

I exchanged the heads with same dodel, also exchanged the electronic board, with no
result.

When inserted in external Sata / USB extension box, not detected by Windows, but both
R-Studio and Easy-Recovery are able to see a "MAXTOR SABRE2" drive, of 2 TB (2000 GB) ! and read nothing...

any help welcome... Please ...

SABRE is the family alias for this disk. I suspect head replacement was the correct thing to do, but was donor compatible? Were heads kept seperated on removal and replacement? Was there any visible damage to the media?

If hdd its knocking on first should be checked surface on clean room, to check presence of scratch maxtor , after that, u should not be tried the head exchange if this is u first post we suppose u are a newbie, the exchange of heads its not a easy job, many times the newbies when tried to did a head exchange without experience damaged the MR sensors, on the process, we had receive a lot of cases here with this problem , "damaged by newbies peoples who think the data recovery its an exchange parts process " unfortunely damaged the disks manye times without no hopes to did a DR , if hdd show u the "Factory alias code" Sabre, could be a SA problem too, but only could be solved by a DR company with experience , where are u based on? maybe we can guide u to that people .

I'm french with very bad english lingage ... Sorry !

I have changed some heads or PCB in seagate, western, hitachi ... without pb.
and we have a good electronic laboratory

For actual problem
the disk damaged :
Maxtor 6V200EO SN V40AOALG TLA 6V200E004631A china 18MAR2006
the donor disk from head remplacement :
Maxtor 6V200EO SN V404JW7G TLA 6V200E004631A china 18MAR2006

They are no visual scratch on plates and no damage on MR sensors...

I don't understand : if hdd show u the "Factory alias code" Sabre, could be a SA problem too
Why I can't see the HDD on the bios ?

Thank's for your help !

boot missing obviously that's why. Undetected in bios is also faulty as SA.

_________________
__________
There is no substitute for education and experience
THANK YOU
SHAHI
shahi.mahbub@gmail.com

The factory code is showed sometimes because the HDD Engineering cannot load the System Area, and only get the microcode from PCB, by this reason show the factory code " Sabre","Ares64k","Romulus","Nike""Athena" etc.

beto, thanks for answering

I just don't understand the expression "SA problem" : what do SA stand for please ?

I still don't understand why the HD is not detected by the BIOS, since I tried with a good PCB that is supposed to include a good firmware.. right ?
same answer with both PCB.. and no identification by BIOS.. ??
why this could come from heads failure ? or disk failure ?

merci

beto, thanks for answering

I just don't understand the expression "SA problem" : what do SA stand for please ?

I still don't understand why the HD is not detected by the BIOS, since I tried with a good PCB that is supposed to include a good firmware.. right ?
same answer with both PCB.. and no identification by BIOS.. ??
why this could come from heads failure ? or disk failure ?

merci

The SA means System Area, Diskware or Engineering Cylinders ,tracks called too , are a zone where access its on negative way its said -cyl, the most access, even with hex editor its +cyl, this a reserved area from factory, this access its more on deep than Int13h (BIOS) by this way, softs cannot work with that , becasue they only works by interruption vector tables, if they cannot access, that´s are the most programms utils based over applications like "rstudio,get data back,easy recovery etc..."they said hdd its undetectable,
HDD´s doesnt has fw only at pcb, has that area over platters wich was recorded at factory process, inside has information called "adaptive information" wich cannot be replaced,defect list area, calibration info, zone tables etc..its not like a Motherboard fw, wich u can store in a bin file an u upload , HDD are Engineering piece´s

Regards

Thank's beto,

If I understand the bios read the firmware + the system area, and if the SA is damaged the bios can't reconise the disk ?

Do you know software for analyse - or repair the SA ? whithout special hardwre like PC3000 ?

Need SW-HW complex. Not possible only using softwares.

_________________
__________
There is no substitute for education and experience
THANK YOU
SHAHI
shahi.mahbub@gmail.com

Right, its not possible or only if u have a lot of knowledgment , programming, knowledgment about ATA programming, vendor tracks zone, vendor commands, and many knowledgment about the SA at all brands