WD 250Gb SATA OEM Drive 2

[duane123]

I just purchased a Western Digital SATA OEM drive and went to their web site for installation instructions. It states "Western Digital Serial ATA hard drives ship from the factory with a jumper shunt in the Default position (across pins 1 and 2). It is not necessary to move the jumper shunt on the drive for workstation or desktop use."

The drive came sealed from factory and had NO jumper - should I put a jumper in the default position or just try and install without any jumpers? Since WD says they ship with it, I am a little confused, plus I do not know why the jumper is needed on a SATA drive (unlike the PATA master,slave, and CS positions). I notified WS support but they are a little slow to respond. I am planning on installing it for the primary boot C: drive and load up Win XP home on it. This is my first try at installing a SATA.

 

[paparazi]

I know this doesn't exactly answer your question but:
We have installed literally dozens of OEM SATA drives since their appearance 2 years ago? and have never needed to add/alter any jumper positions.
As you can only have the one drive per cable this has never been an issue.
Just connect this drive on SATA 0 or 1 (which ever is the first connection on your motherboard) I advise that if you have a second IDE drive that already has a bootable copy of an OS installed? to leave this disconnected initially until you have installed your OS on the new SATA unit.

Martin

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[Freestone]

http://www.wdc.com/en/library/sata/2779-001006.pdf

Page 18 describes the jumper settings. Pins 1 & 2 disable (jumpered & default setting) or enable spread-spectrum clocking.

The jumper should have been installed at the factory, but if you have already installed the drive I wouldn't worry about it. Spread-spectrum clocking is used to reduce EMI emissions and does not affect performance (that I know of). Why it's disabled by default leaves me wondering.

A good article about spread-Spectrum clocking hard drives:

http://www.eetimes.com/in_focus/communications/OEG20030414S0078