I have this WD Caviar Black 640GB 32mb cache 7200rpm SATA II hdd It is only 2months old and i noticed that in the S.M.A.R.T Attribute
Ultra ATA CRC Error Rate shows a reading of 146 errors?

is this ubnormal? I don`t know why my drive show these errors!

Maybe a bad sata cable or crosstalk sideffect?

Should I replace the drive cause it is still new and under warranty!

The harddisk is performing excellent no stutters or bad sectors!

the only concern I have are the CRC errors! a bit too much!

Please see attached screenshot for further investigation!

Kenneth

thank you sir for your fast reply!

I have a high end gaming machine which i built by myself!

the psu is a tagan 2forceII 800w and it works like a dream!

I may change the sata cable and i think the reason is crosstalk cause my sata cable are very close to each other!

the problem started when i was copying a 5gb iso file to this drive! at some point while copying the drive slowed down to 15mb from 114mb/sec!!!

this is where the ultra ata crc slows down the drive performance to retransmit the data for a 2nd check on data integrity

I never had such a slowdown on all the WD drive i have!

This drive is 2months old but it works very good aside of the crc erros! all is good to go

is there a way to reset these 146 errors to 0 like a firmware flash or something similar?

WD seems to place the warranty only on ID`s 1,3,5 where status states "Value is normal" and all the other attributes are just counters not considered as harmful data readings