Hard Drive Installation; Jumper Settings - Western Digital Purple PR1334M Technical Reference Manual

WD Purple PR1334M
provide additional ground connections between the HDA and the system chassis. If
the drive isn't grounded via mounting screws as described under "Mounting" on
page 40, there may be increased electrical emissions (EMI).
5.3

Hard Drive Installation

If your system does not support hot plugging (see "Hot Plug Support" on page 21), it
must be turned off and unplugged before installing your hard drive.
5.3.1
It is not necessary to place a jumper shunt on the drive for workstation/desktop use.
For enterprise storage environments, the advanced settings are as follows:
SSC Mode – Spread spectrum clocking feature enabled or disabled (jumper on pins 1-
2). Default setting is disabled.
PUIS Enabled Mode – To designate the drive as power-up in standby (power
management 2 or PM2) enabled, place a jumper on pins 3-4 (default setting is
disabled). This mode enables controlled spinup via spinup command per ATA
standard. It is mainly used for server/workstation environments operating in multiple
drive configurations.
Important: PUIS mode requires a compatible BIOS that supports this feature. If PUIS is enabled
and not supported by BIOS, the drive will not spin up and therefore will not be detected by the
system.
Native Gen2 Enabled Mode – To revert to the SATA 3 Gb/s data transfer speed, place a
jumper on pins 5-6.
Force Gen1 Enabled Mode – To revert to the SATA 1.5 Gb/s data transfer speed, place
jumpers on pins 5-6 and 7-8.
2679-800084-A04

Jumper Settings

RELEASED 5/3/17 (WD CONFIDENTIAL)
Installation and Setup Procedures
41