I bought my new Western Digital internal HDD of 2TB and have confirgured it successfully on my pc and have assigned drive letters no it in windows 7 -64 bit. and whenever I tired to my data from my old 320 GB hdd to this new 2TB hdd then it's a totally worst performance I have ever seen before.

I have Dual-Core AMD Opetron 1216 processor with 2.40 ghz speed. RAM is 4 GB with nvidia 210 graphic card with 1 gb memory.

when thinking about solution I feel that should I also need to upgrade SMPS for power supply?
because this WD 2TB hdd is more thicker then my old 320 gb HDD. so is 2TB HDD really needs more power to perform well?

currentely I am using SMPS with 400 watts capicity.


I can get 600 watts SMPS with good rate, so I replace my SMPS with 600 watts then is it possible that 2TB hdd can perform well?

OR please tell me the solution.

The only problem is that it is WD and it is 2 TB.

If you are putting important data on that drive, be sure to back it up regularly before it fails.

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Luke
Recovery Force Data Recovery

It's not a power supply issue.

Can you show us HD Tune's read benchmark graphs for your two drives?

http://www.hdtune.com/

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A backup a day keeps DR away.

Instead of 'el cheapo' solutions, get a separate high performance controller with onboard cache and use different drives, possibly smaller - if performance is a problem. Professional solution : SAS with controller.

I'm assuming the OP meant to say: "whenever I tried to copy my data from my old 320 GB hdd to this new 2TB hdd..." so the poor performance is seen when writing to the new drive. Is that an Advanced Format WD drive? Probably.

The OP does not describe the method of copying/cloning they are using, but perhaps the OP is just seeing the expected poor performance when using a non-Advanced Format aware cloning utility and/or non-4kB aligned target partition, when writing to an Advanced Format disk?

More details from the OP about how they are copying their data, the alignment of the source & target partitions, and the model number of the WD drive, will help to confirm or eliminate this possibility.

Suitable free cloning utility is available from WD:
http://support.wdc.com/product/download.asp?groupid=805