Replacing hard drive, just want to know if a WD400...

This will help
https://eshop.macsales.com/Tech/manuals/idehdsettings/WD72.pdf

Jumper Setting Information

Hi

The WD schematic diagrams here should tell you everything you need to know:

http://www.wdc.com/en/library/eide/2579-001037.pdf

Good luck!

I hope this helps.

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The hard disk inside the external case has just died. The only thing you can do is to buy a new one since hard disks can't be repaired.

It's not clear the model you are asking for, so I have to give you the total WD jumper settings and choose the case that you want.

In case of a problem or clarification, don't hesitate to post me a reply.
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Stelios
direct FixYa link: http://www.fixya.com/users/technical114

Hi,

Always a good question,

For #1

Always a good idea to mirror your OS drive for quick recovery. So yes I would use 40GB of the velociraptor for a mirror. However if your board supports it I would actually suggest you would be better served for your dollar to buy some 500GB+ WD greens or seagate 7200.12's(do NOT buy 7200.11) then set them up as raid5, frankly you'll get redundancy and speed, with more space. 4 Greens will perform as well as three VRs and cost less.

I currently run two Greens and 2 7200.12's on my home server and the 7 rating is 7.6 for my HDD and I've got 4.2TB of space for under $500.

I mentions some of the pro's and cons in detail on my blog last week Pro's and Cons.

Hope this helps,

Chris

It would cost just as much to purchase a "SERILLEL" adapter as it would cost to purchase another "empty" external hard-drive case that has support for the newer-style 'SATA' hard-drive.

If you have a newer desktop-computer, you probably have an unused SATA port on your motherboard, and an unused SATA power-connector. Temporarily connect the SATA drive to your motherboard, and do the recovery.

Purchased a USB to IDE cable. Looked like it was communicating with the hard drive (WD400) my computer did not see the drive. (Vista OS).

Western Digital customer service recommended that I change the jumper pin to position #4 on the hard drive and install inside the computer as a an additional slave drive.

Worked perfectly.

try this software it is free to try and then if you see it recovered your data you can buy it in order to actually save it off...
http://www.runtime.org/gdbnt.zip
Hope this helps

The elemets hard drives are not user serviceable and thus, you may void the warranty in doing so. Have a look on their website for the data lifeguard diagnostic software and check for possible errors. he sound you may be hearing is the heads inside the drive. If you are still under warranty, you can have your drive replaced. Make sure you have your data backed up.