Question about Western Digital 2TB My Book Studio II Hard Drive

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Can i use a power supply of 12v 2.5A instead of a 12v 2A (original), on my WD hdd???

The omne i have is the old one, with 2 FireWire 400 port, 1 USB 2.0 amd 1 eSata, and its capacity is 750 Gb (discontinued). The original power supply is not working and i would like to use anoder i have, but it has an output od 12v and 2.5A, instead 2A of the original.

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  • Master
  • 2,072 Answers

As long as the plug fits, it should run fine.

Posted on Jan 02, 2013

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SOURCE: WD hd won't start up when turned on until you plug into usb

i cant put a solution for this but try the exact software for the disk which it came with this can help.Im also trying for the software

Posted on Nov 07, 2008

SOURCE: WD MyBook Premium not showing any capacity using Firewire

There seems to be a firewire port issue on the device. Why not leave it USB?

Posted on Jun 05, 2009

iklln6
  • 35 Answers

SOURCE: eSATA confusion.

There are not enough 'real world' benchmark reviews on the internet. The theoretical max of eSATA may be 3.0Gbits/sec (~375MBytes/sec) while USB 2.0 has 480MBits/sec (~60MBytes/sec) but you will never see this. You will be bottlenecked by the speed of your physical drive, bus speed, and other miscellaneous things that effect the speed of file transfer. I bought a drive with a USB 2.0 port, a Firewire 800 port, and an eSATA port in search of blazing fast file transfer. I found my USB 2.0 to cap out around 40MB/s, the Firewire ~70MB/s, and, to my surprise, eSATA at ~70MB/s also(!) I had my friend come over, who has a wicked awesome machine and a solid state drive, and we tested his. He had around 40MB/s on the USB 2.0, ~85MB/s on FW800, and ~90MB/s on eSATA. We concluded that we were seeing our computers cap out before the capabilities of the connections were achieved. We also decided that one of the large contributors to the issue was the spindle speed of the ext drive which we assume to be 5400rpm. Slow disk-spin equals slower file transfers. It would be interesting to test the connections from a solid state ext hard drive to my friend's solid state drive to see where the cap occurs when the spinning disk it taken out of the equation, but that is for another day.
You are not seeing incredibly fast speeds on eSATA because your computer can not handle speeds much faster than USB 2.0. Don't feel bad, my friend's $5000 macbook pro could not handle speeds much faster tan that, either. It is just how technology is, and how advertisers try to take your money. Next time a salesman comes up to you in best buy trying to trick you into buying an eSATA because it can hit a theoretical max of 3.0Gbs, punch him in the face, remind him that's gigaBITS per second, and push over a stack of books because our computers can't do that yet.
You are not stupid, my friend. I wondered the same thing when i first hooked up the eSATA. I went insane wanting the fastest file transfers because I was sick and tired of transferring slowly, but I feel better now knowing the max. Now i stick to less expensive firewire 800 because I wouldn't see the benefit of eSATA anyways (and I am also on a new macbook pro.)
Check out firewire, it'll tie with the fastest transfer your machine can handle, and it does not start and stop like USB so you get the gratification of watching a steady flowing progress bar.
If you desperately need faster transfers and have money to spend, here is how you do it:
Replace the drive in your machine with a solid state drive. Buy a 256 or 512GB solid state drive (large enough to enjoy, 512GB's are pretty expensive right now as they're a month old). Buy an enclosure from newegg.com for the size of drive you bought and an eSATA connection. Put it all together and there you go: you'll get much closer to that max. Be sure to hit me up with your results, I am VERY interested to see just how much of an increase in speed you have. Whether other components are to blame.

Posted on Jul 15, 2009

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