WD10EARS show 512 bytes sector size in window 7 32bit?


#1

I used HD Tune Pro to test the speed of my WD10EARS and the average reach max only 70mb/s.

And i found out that my WD10EARS sector size is 512 bytes only.

I’ve use WD Align System Utility and it showed all partition are properly aligned.

I even used Data Lifeguard Diagnostics to check,but physical drive there showed none.

I suspect my WD10EARS is faulty with the sector size.

Is there any other solution or i should send for RMA?


#2

Actually, that’s by design in order to make the drive backwards compatible.  It’s 4K emulating 512.  The drive should be okay if it’s passed all the tests.


#3

I use Western Digital LifeGurd Diagnostics to run the tests.

But it show out the error " Cable Test::Write sector error! ".

I’ve check with the error page provided by WD, but this error wasn’t shown in the page.

Can i know what’s the problem and the best solution to solve?


#4

You are probably running Windows 7, it’s a bug that’s been fixed.  We’ve just released a newer version of DLG Diagnostics.

Data Lifeguard Diagnostic for Windows, Version 1.21
http://support.wdc.com/product/download.asp?groupid=609&sid=3&lang=en


#5

I managed to pass all the test.

But when i use HD Tune Pro to test the speed, the average speed i’m getting is just  69mb/s read speed.

 The access time is 14.9 ms. Burst rate 201.7 mb/s.

When i test the speed for older hard disk of 32mb cache, i’m getting 64 mb/s.

Can i know for WD10EARS 64mb cache, is 69mb/s read speed normal?

What is the RPM for WD10EARS? What should be the normal/average read and write speed?


#6

Transfer rates range from 70-130 MB/s.  Things to look at that might hinder transfer speeds are the controllers, cables, drivers, etc.  Try to update the drivers for the motherboard and consider trying a another cable. 


#7

All my drivers are updated and i’ve test with a brand new SATA cable.

But it’s still the same.

I think there is problem with this hard disk as i boot Window 7 longer than 32mb cache hard disk.


#8

Download our diagnostic utility and do a short and extended test.  That will tell you if the drive is okay.

DLG Diagnostics (Windows)
http://support.wdc.com/product/download.asp?groupid=9999&sid=3&lang=en


#9

If HD Tune’s performance graph has a long flat plateau at the outer areas of the disc, then that would suggest that the transfer rate is being bottlenecked by the SATA controller or motherboard chipset.


#10

I have tested Western Digital Caviar Green 500 GB 32 MB cache, WD5000AADS with the same motherboard.

The result :

Read Speed: Min = 12.5 MB/s, Max = 93.4 MB/s, Average Speed = 73.2 MB/s

But with Western Digital Caviar Green 1TB 64 MB cache, WD10EARS.

The result :

Read Speed: Min = 1.6 MB/s, Max = 90.6 MB/s, Average Speed = 70.1 MB/s.

So it is obviously the problem is not related to any BIOS or SATA setting or Motherboard problem, but the hard disk itself problem.