I am using WD HDDs : One WD2500KS & One WD3200KS

Both are SATA II, 16Mb. Cache.

Performance is great, they are fast and really very very quiet. It is also very low on heat.

Previously using Maxtor 160Gb SATA I and another Maxtor 80Gb. IDE. The 80Gb. died after about 1 year. Sold off my Maxtor 160Gb. and got both WD...been very happy with it. I highly recommend WD.

But then I got a problem which I think is not due to HDD fault. U see, I am connecting the 250Gb. and 320Gb. on SATA and I transfer large files and large amount of files from one HDD to another (most of the time from 250Gb. to 320Gb.). After a while of transferring, there will be an error message popup somewhere at taskbar (near the clock at lowerright of the screen). The error is " Delayed Write Failed". The error is referring to my 320Gb. (destination drive of my copy). The 320Gb. will not be accessible anymore and the HDD light (LED on casing) will be 'on' all the way.

What I do is, I have to shutdown the PC and start again and its back to normal until I do large file / large amount of file copy again. If i just normal use the PC without large copy, it will be OK.

I have checked the drive for errors or bad sectors and everything is fine. I also googled around for the error and found some known issues from microsoft WinXp but followed and solution and it still happens. There are also some forums that discussed this error but there's no one managed to solve it.

You can refer :

http://support.microsoft.com/?kbid=330174&sd=RMVP

http://support.microsoft.com/kb/870894/en-us

http://support.microsoft.com/default.aspx?...kb;en-us;839490

Any ideas fellow members?? Pls. help, this is annoying me.

super macgyver, thanks for replying....no prob with my ram...i wonder whether it could be due to the mainboard..maybe the chipset is not so good....i m using a MSI nforce 6150/430 mobo for AMD S939...running 512Mb. DDR400 Kingston and AMD Athlon 64 3800+

super macgyver, there's no issue when I transfer files within the same physical HDD (2 partitions). Also no problem when I transfer from the WD2500KS to other IDE Hdd.

I am suspicious of the MOBO or the SATA Cable.......is there supposed to have SATA II cable when using SATA II HDD??

At first, there are ppl saying insufficient PSU supply may be the cause...so I changed to Acbel 500W PSU already and its still the same....


By the way, I have 2 partitions on my 250Gb. HDD (80Gb : C Drive, 170Gb. D Drive) and 1 partition on my 320Gb HDD (H Drive). I am also connecting 2 IDE CDROMS (Drives E & F)

super macgyver & coolblade,

Thanks for all your comments and suggestions. I will try to find some other good memory to try it out. Will post some feedbacks once I try them. Thanks again.

there's a known issue for WD SATA II 16Mb. Cache 250Gb (SE16) the WD2500KS model where the temperature will be around 8 to 10 degrees higher.

It was due to firmware issue where the actual temperature is 8 to 10 deg lower. I dun have the article with me but you should find some info if u google around for it.

So in short, no worries on the temperature.....WD are known for its low temp and low noise....the SE16 series are the best HDDs I have used.

Been using the WD2500KS (250Gb) and WD3200KS (320Gb) with full satisfaction.