Jumper Settings; Figure 5-1 Sata 6 Gb/S Jumper Settings - Western Digital caviar blue xl500s Technical Reference Manual

Installation and Setup Procedures
5.3.1
It is not necessary to place a jumper shunt on the drive for workstation/desktop use. For
enterprise storage enviroments, the advanced settings are as follows:
5.3.1.1
SSC Mode – Spread spectrum clocking feature enabled or disabled (jumper on pins 1-2).
Default setting is disabled.
PM2 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: PM2 mode requires a compatible BIOS that supports this feature. If PM2 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.
Figure 5-1. SATA 6 Gb/s Jumper Settings
Default
Standard configuration – no jumper added; spread
spectrum clocking, PM2, Native Gen2, and Force
Gen1 disabled.
SSC (Enabled)
Spread spectrum clocking enabled (jumper on pins
1-2).
PM2 (Enabled)
Power management enabled (jumper on pins 3-4).
Controlled spinup via spinup command per ATA standard.
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Jumper Settings

SATA 6 Gb/s Hard Drives
RELEASED 10/21/10 (WD CONFIDENTIAL)
Native Gen2 (Enabled)
Gen2 enabled (jumper on pins 5-6). SATA 3 Gb/s
data transfer speed activated.
Force Gen1 (Enabled)
Gen1 enabled (jumpers on pins 5-6 and 7-8).
SATA 1.5 Gb/s data transfer speed activated.
XL500S
2679-701211-A06