Obi-Wan Posted January 3, 2014 Share Posted January 3, 2014 Hello. This is my first post, so again - Hello to everyone What does the "ECC Bytes" position under Storage -> ATA means? Aren't the HDDs suppose to have the same amount of ECC bytes (50 on 512b and 100 on 4K Advanced Format disks)? I have HDDs from few manufacturers and: Seagate ST3120026A - ECC Bytes: 4 Seagate ST3250410AS - ECC Bytes: 4 Hitachi 160GB 2,5" SATA - ECC Bytes: 4 WD WD6400AAKS - ECC Bytes: 50 (this looks like I thought all disks should looks) and the best: Toshiba MQ-01ABD100 (from ADATA CH11 External USB3 drive - the drive is AF 4K) - ECC Bytes: 0 (yes - zero! - Tried to read it via USB and via SATA) What does it means? Quote Link to comment Share on other sites More sharing options...
Fiery Posted January 5, 2014 Share Posted January 5, 2014 It seems the latest ATA specification (and a few preceding revisions as well) treats the ECC bytes register field as obsolete. We'll remove that information from AIDA64 to avoid confusion.Thanks, Fiery Quote Link to comment Share on other sites More sharing options...
Obi-Wan Posted January 8, 2014 Author Share Posted January 8, 2014 Hello. Thanks for your reply. Maybe it is worth to delete that information only when the latest ATA spec is found on a disk? Or maybe only when that value is zero? Quote Link to comment Share on other sites More sharing options...
Fiery Posted January 8, 2014 Share Posted January 8, 2014 The ATA spec treats the ECC bytes field obsolete for over 15 years now, so it's not since the previous spec release Quote Link to comment Share on other sites More sharing options...
Obi-Wan Posted January 10, 2014 Author Share Posted January 10, 2014 Ahahah I thought that the change was made on the latest ATA8 spec But it is interesting, that many new HDDs report this value anyway, but not all of them. Thanx for reply, glad I could help in AIDA64 evolution. Quote Link to comment Share on other sites More sharing options...
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