The Max. file transfer speed is a ridiculous 10 MB/s.. The manual says that theoretical should be about 78 MB/s, if properly configured.. The DRIVERS, BIOS & Settings are absolutely TOP-NOTCH..

Please go thru' the HD Tune Screenshots..

Any help is greatly appreciated.. THANKS!!

I would test your file transfers on drive C: rather than D:.

ISTM that you have a bad section between 50GB and 80GB. Try to replicate those results with MHDD under DOS.

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A backup a day keeps DR away.

Wherever I may copy, C or D.. after jumping robustly to about 50 MB/s, the disk i/o suddenly drops down to around 8-10 MB/s.. sometimes even as low as 800-1200 KB/s which makes me wonder which year am I living in.. So any inputs Plz ??

Say in this image here :http://forum.hddguru.com/download/file.php?id=9745&mode=view, what does Interface CRC Error Count is unusually high ?? what exactly is this Interface CRC Error Count.. ??

Wherever that I may copy, C or D drive.. After jumping to a robust 50MB/s, the disk i/o suddenly drops to about 10 MB/s.. On occasion I had to withstand even 800-1200 KB/s.. Grrrrrrr.. Yeah tearing my hair out..

In one of the screenshots above, "INTERFACE CRC ERROR COUNT" shows a large deterrioration of about 200 errors.. Exactly what is this "INTERFACE CRC ERROR COUNT" ??

Thanks for ur Input, Guyz..

i think we are talking here of some wear and tear... i see you have a lot of slow reading sectors...i have a hdd that also has some slow reading sectors and although the theoretical speed it's 100mb/s it barely goes to 10 and in my case the answer it's wear...and judging by your sectors i would presume the same.

Sooooooo...... JUST trash it & get a new one ??

not at all, you can keep it for backups, but for everyday use, maybe it's too slow because of the problems it has...but i think as a backup drive will do just fine.

Thanks Guyzz.. Everybody.. I thought maybe there was a quick_fix..

Guess will just have to grin n bear it..
Thanks again>>

The UDMA CRC Error Count reflects SATA interface errors. I wouldn't blame the drive for those.

Windows tools would be affected by interference from background tasks, so a DOS based surface scan would be more reliable. If MHDD confirms the existence of the bad area, I would create 3 partitions and confine the bad area to the middle partition. Then you could use the HDD for non-critical storage.

The following article tries to explain the SMART attributes:

http://en.wikipedia.org/wiki/S.M.A.R.T.

_________________
A backup a day keeps DR away.

cheap stuff thats what is wrong