I've been hearing some knocking from the hard disks when doing work today.  So installed Speedfan.

According to Speedfan the hard drive HD0: should be replaced.  Does anyone know how reliable speedfan is for such diagnostics?  Hard disk is a Seagate ST3320620SV with firmware 3.ACH.

Another thing, more difficult to tell which drive is which since I'm using SATA..  Does HD0: mean the same as 'Disk 0' under 'computer management?

Below is the stats Speedfan gave me for the drive.


Error:          Spin Retry Count has reached its threshold. Current value is 69 and threshold is 97.

According to S.M.A.R.T. specifications, your hard disk is failing and needs to be immediately replaced. Backup your data as soon as possible.


Warning:     Spin Retry Count reached, in the past, its threshold. Worst value is 69 and threshold is 97.


Your hard disk is now being compared to real data used to define normal values for your specific hard disk model. This way, the analysis can automatically use proper operating ranges. The images give you an idea of how each attribute is within such range. Current and raw values are shown for easier reference for experienced users. There are 2483 hard disk models in the current archive.


Attribute Current Raw Overall

8         Raw Read Error Rate         114         69307152         Very good
1         Spin Up Time                   94         0             Normal
10         Start/Stop Count            100         419             Very good
10         Reallocated Sector Count     100         0             Very good
0         Seek Error Rate             44         18865 6301 27478    Watch


Warning: Seek Error Rate is below the average limits (45-100).

1         Power On Hours Count         91         8181             Normal
0         Spin Retry Count         69         0             Watch


Warning: Spin Retry Count is below the average limits (100-100).

10         Power Cycle Count         100         417             Very good
10         Reported Uncorrectable Errors    100         0             Very good
10         High Fly Writes             100         0             Very good
5         Airflow Temperature         59         739442729         Good
7         Hardware ECC Recovered         78         22029699         Good
10         Current Pending Sector         100         0             Very good
10         Offline Uncorrectable Sector Count100         0             Very good
10         Ultra DMA CRC Error Rate    200         0             Very good
10         Write Error Rate         100         0             Very good
10         TA Increase Count         100         0             Very good