jcarlosmor
Data Recovery Noob
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Joined: Thu Dec 19, 2019 12:27 pm

Cross Compatible WD Families

Tue Jan 21, 2020 5:42 am

Thank you for your reply Jared.

Let's talk only about WD400BB or WD800BB series for example. When you say "the head map used on each WD drive is stored in the ROM", do you mean inside the 8-pin EEPROM or inside the bootstrap memory of Marvell 88i65xx chip controller?

I suppose that information is proprietary and only for manufacturers of data recovery equipment. The 8-pin EEPROM in these drives is 128KBytes, and I believe only a portion of them is realy used to store adaptive parameters and so on. The question however, is to know where the specific locations are used. For example, I can see in posts that you talk about, let's say, "module 47". Of course, that 47 is not physical location 0x0047 in the memory map of the EEPROM. I suppose is only a logical identification of some real memory address in the 128KByte span memory map.

Is there some information public available to correspond logical modules to real memory physical locations of the EEPROM, like for example, head mapping and so on?

Regards.

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Jared
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Cross Compatible WD Families

Thu Jul 16, 2020 12:50 pm

Does anyone know if Tornado 3D and Tornado PATA heads are cross-compatible? (or according to module C5 in these drives Tornado and Tornado2_PMR)

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DigitalVeriKurtarma
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Cross Compatible WD Families

Thu Oct 15, 2020 9:37 am

Mariner and Zephyr HSA cross compatible experience. It worked if you coul match it truelly
wd-hdd-head-swap-experiences-t1249-80.html#p17043
Data Recovery In Turkey
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Jared
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Cross Compatible WD Families

Tue Apr 06, 2021 5:52 pm

So I just confirmed that Tornado 2D and Tornado 2PMR are cross-compatible for heads.

slingshot
Experienced DR Tech
Posts: 232
Joined: Fri Jul 21, 2017 7:26 pm

Cross Compatible WD Families

Fri Sep 10, 2021 12:44 pm

Tressels into Trails worked good for me recently.

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