Jumper settings on 250gig WD SE16?

Greetings everyone,
first, let me thank to the Apple community and all of you at this forum who are always ready to provide the helpful information. It is amazing what a well of knowledge and support this forum is.
Now, to my question:
Basing my decision on extremely good reviews, I recently purchased 250 Gig WD SE16 drive. I use my G5 for composing music for film and have rather extensive sound libraby. My plan is to use the new drive as a dedicated sound library drive (no OS necessary). I have the FirmTek 2EN2 enclosure with SeriTek SATA controller 2SEN2-E. I also house the 74gig Raptor in the enclosure (due to well know issues with internal SATA controller) as a dedicated recording drive. My question is related to the SATA II backward capabilities without the need to set the jumper on the new WD SE16. I know that I can limit the drive to SATA 150 Mb/s by placing the jumper to the appropriate pins; however, is that really necessary? Am I going to have any problems running the drive as it is using the above mentioned card?
Following are the specs of my computer:
Mac OS X 10.3.9
Dual 1.8 GHz PowerPC G5 (late 2004)
2 GB DDR SDRAM
Many thanks in advance.
H.

The old 74GB Raptor with 8MB cache works fine w/o a controller, it was the newer models that came out about a year ago w/ 16MB cache that needed a controller. OWC still sells the older model.
Anyway...
Not all G5s will auto-negotiate (or not all drives will, depending how you look at it) as the G5 came out early in the SATA game.
And you aren't going to use this drive off SeriTek or in ext. case, just on the native SATA internal port.
Just to be safe, jumper it to the 150MB/sec mode. Or torture test the drive for a few days with copying lots of large files (4-8GB .dmg would be good) and duplicate a large folder with thousands of files. Or use Speedtools to run their suite of tests (zonebench, quickbench, integrity, media scan, etc).
Also, while I find WD's information always needs a "grain of salt" when it comes to Mac support, always good to check their.
The WD SE16 500GB is very popular, quiet, along with its "cousin" the RE2 500GB. There was one 400GB model, still out there in the marketplace, that was trouble for G5s.
So I would do a "zero-all" when you format it, then load it with files and test it for a day. And when you are satisfied, erase or reformat it again and then load your files and libraries.

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