WD1600BEVS Sata jumper (1)

I just pulled my WD Passport apart, yep WD Sata 160 drive. I could not find any info on what the one jumper was for, even on the WD site.

I went ahead and placed it into my P6831 second bay and it mounts fine.
This will make it easy to image my C drive for back up.

But that one jumper is killing me Anyone?

 

The literature I read has always stated that SATA devices don't have jumpers. But i've seen a few with that random jumper.

I found this:

SATA Hard Drive Jumper Settings

WD SATA hard drives are factory set for workstation/desktop
use. For enterprise storage requirements, the jumpers can be set to
enable spread spectrum clocking or power-up in standby modes.

WD SATA drives are shipped from the factory either with or
without a jumper shunt in the spread spectrum clocking (SSC)
enable/disable position (on pins 1 and 2). It is not necessary
to add or remove the jumper shunt on the drive for
workstation/desktop use.

For enterprise storage enviroments, use
the following advanced settings:
SSC Mode (Default 1): spread spectrum clocking feature enabled
or disabled. Default 1 setting is disabled or jumper shunt placed
on pins 1–2. Removing the jumper enables the spread spectrum
clocking feature.

SSC Mode (Default 2): spread spectrum clocking feature enabled
or disabled. Default 2 setting is disabled or no jumper shunt
placed on pins 1–2. Adding the jumper to pins 1–2 enables the
spread spectrum clocking feature.

PM2 Enabled Mode: to enable power-up in standby (power
management 2 or PM2) mode, place a jumper on pins 3–4.
This mode enables controlled spinup by spinup command
in accordance with ATA standard and is mainly for
server/workstation environments operating in multiple-drive
configurations.

Note: The PM2 feature is not available on all WD SATA drives.

OPT1: 150 MB/s data transfer speed enabled or disabled. Default
setting is disabled. To enable 150 MB/s data transfer speed, place a
jumper on pins 5–6.

OPT2: reserved for factory use (pins 7–8).

*Important: PM2 mode requires a compatible BIOS that
supports this feature. If PM2 is enabled and not supported by
BIOS, the drive does not spin up and therefore is not detected by
the system.

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

 

here ya go:

 

Thanks Gregory, yea i read that on line but a different pinout block shown.

Gophn, you da man! I search up and down the WD website for that.

Thanks to you both. It appears that I have SSC enabled, FWIW.