Ata (pi) 80-pin cable detection, Sata speed limit, Ata (pi) 80-pin cable detection sata speed limit – Kontron CP307-V BIOS User Manual

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Advanced Setup

CP307/CP307-V BIOS Guide

Page 20

ID 35978, Rev. 2.0

P R E L I M I N A R Y

ATA (PI) 80-Pin Cable Detection

This function is used to select the method used to detect the ATA (PI) 80-pin cable.

Optimal and Fail-Safe default settings: Host & Device

The use of an 80-conductor ATA cable is mandatory for running Ultra ATA/66, Ultra ATA/100
and Ultra ATA/133 IDE hard disk drives. The standard 40-conductor ATA cable cannot handle
the higher speeds.

The 80-conductor ATA cable is plug-compatible with the standard 40-conductor ATA cable. Be-
cause of this, the system must determine the presence of the correct cable.

This detection is achieved via an open in the host connector in one of the lines on the 80-con-
ductor ATA cable that is normally an unbroken connection in the standard 40-conductor ATA
cable. It is this break that is used to make this determination. The BIOS can instruct the drive
to run at the correct speed for the cable type detected.

SATA Speed Limit

This function limits the maximum Serial ATA transfer speed.

Optimal and Fail-Safe default settings on CP307-V and the CP307 vers. without rear I/O: No Limit
Optimal and Fail-Safe default settings on the CP307 version with rear I/O: GEN1 Rate

SETTING

DESCRIPTION

Host & Device

Use this setting when both the motherboard onboard IDE controller and the IDE disk drive
are to be used to detect the type of IDE cable used.

Host

Use this setting when the motherboard onboard IDE controller is to be used to detect the
type of IDE cable used.

Device

Use this setting when the IDE disk drive is to be used to detect the type of IDE cable used.

SETTING

DESCRIPTION

No Limit

Use this setting when the SATA transfer speed is to depend on the drive capability up to 3.0
Gbit/s.

GEN1 Rate

Use this setting when the SATA transfer speed is to be limited to 1.5 Gbit/s (GEN1 Rate).

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