varying transfer speeds

March 30, 2010 at 10:15:41
Specs: Windows 7
hi everyone!
I'm having a kind of strange problem, or maybe it isn't a problem at all, I'm not sure.
Any way I just got an external Western Digital ELEMENTS 500GB WDBAAU5000EBK HD. I have a new laptop that i just got about a month ago, here is the link....

the problem I'm having is when I transfer folders and files from my laptop HD to my external HD. Some folders transfer at really fast speeds, like around 30 to 50 MBs. Then some transfer incredibly slow around 1.2MBs. I'm not sure what is going on or if this is normal? Anyone know? Thanks!

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March 30, 2010 at 13:51:46
"Western Digital ELEMENTS 500GB WDBAAU5000EBK"

Apparently that's a USB connected external drive.

Your data transfer speed may vary depending on which USB port you have it plugged into at the time.
USB device problems including for flash drives, external drives, memory cards.
External drive requirements.
See Response 1:

If you plug it into a USB 1.x port, the data transfer speed will be MUCH slower.

Even USB 2.0 ports will yield you a MUCH slower data transfer speed than a eSATA connected external drive.

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March 30, 2010 at 14:05:43
The external hard drive is USB 2.0 and always plugged into the same usb port. Let me try to explain it this way.....
say i have 2 folders, folder A and folder B. Both are on my computer hard drive. When I copy folder A to my external drive, it copies around 30 to 50MB/s. When I copy folder B to my external drive, it copies around 1.2MB/s. I can then erase both folders from my external drive, then when I copy them again from my computer to my external HD, I get the same results. Shouldn't they transfer at the same speed?

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March 30, 2010 at 14:31:55
I think it depends on files, for eg. if u have web saved pages (lots of them) it will take time to copy. What to do have inside the folder?

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March 30, 2010 at 16:43:03
I know that larger files will take more time to copy, but its the transfer speed I'm having a problem with. One folder contains videos and pictures, its around 8GB in size. The other folder contains files from software I use at work, its around 1.5GB in size. The 8GB folder transfers to the external HD around 35MB/s. But the 1.5GB folder transfers to the external HD around 1.2MB/s even though they are both on the same HD in my comp. It actually takes longer for the 1.5GB folder to copy to my external HD. Files are just files right? Shouldn't they both transfer around the same speed? Or does the type of file in a folder matter?

By the way, I'm getting the transfer speeds from the "copy files window" on Windows7 Home Premium 64 bit

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March 31, 2010 at 18:35:53
Transfer rate also fluctuates with where the files physically are on your hard drive, and file fragmentation. I'm pretty sure it has to do with the file type as well.

You could try running the disk defragmenter. I'm not really familiar with Win7, but try using the search in the start menu.

Just to clarify, search for "Disk Defragmenter" on the start menu. Run it on both disk drives, and defrag them even if it says you don't need to.

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