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CP305 BIOS
Doc. ID: 1035-8356, Rev. 1.0
September 29, 2009
If it’s embedded, it’s Kontron.
P R E L I M I N A R Y
Preface CP305
Revision History
Publication Title:
Doc. ID: 1035-8356
Rev. Brief Description of Changes Date of Issue
1.0 Initial issue 29-Sep-2009
CP305 BIOS User Guide
Imprint
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MAILING ADDRESS TELEPHONE AND E-MAIL
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For further information about other Kontron products, please visit our Internet web site:
P R E L I M I N A R Y
www.kontron.com.
Disclaimer
Copyright © 2009 Kontron AG. All rights reserved. All data is for information purposes only and
not guaranteed for legal purposes. Information has been carefully checked and is believed to
be accurate; however, no responsibility is assumed for inaccuracies. Kontron and the Kontron
logo and all other trademarks or registered trademarks are the property of their respective owners and are recognized. Specifications are subject to change without notice.
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CP305 BIOS Preface
Table of Contents
1. Starting BIOS Setup ......................................................................3
Main Setup Menu .............................................................................................. 4
Setup Default Override (SDO)........................................................................... 4
Navigation ......................................................................................................... 5
2. Main Setup .....................................................................................9
System Time...................................................................................................... 9
System Date...................................................................................................... 9
3. Advanced Setup ..........................................................................13
CPU CONFIGURATION SCREEN .................................................................. 14
Max CPUID Value Limit............................................................................... 14
CPU Thermal Monitor Function SDO......................................................... 15
Execute-Disable Bit Capability .................................................................... 15
Hyper Threading Technology ...................................................................... 15
Intel® SpeedStep™ tech. SDO.................................................................. 16
Intel® C-STATE tech ................................................................................... 16
Enhanced C-States ..................................................................................... 16
IDE CONFIGURATION SCREEN.................................................................... 17
ATA/IDE Configuration ................................................................................ 17
Legacy IDE Channels ................................................................................. 18
Configure SATA as ...................................................................................... 18
Configure SATA Channels........................................................................... 19
Hard Disk Drive Write Protect ..................................................................... 19
IDE Detect Timeout (Seconds) ................................................................... 19
P R E L I M I N A R Y
ATA (PI) 80-Pin Cable Detection ................................................................. 20
Primary, Secondary, Third and Fourth IDE Master and Slave..................... 21
Primary IDE Master Screen .................................................................... 21
Drive Parameters .................................................................................... 22
Type ....................................................................................................... 22
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LBA/Large Mode .....................................................................................23
Block (Multi-Sector Transfer) ...................................................................23
PIO Mode ................................................................................................23
DMA Mode...................................................................................................24
S.M.A.R.T. for Hard Disk Drives .................................................................. 25
32Bit Data Transfer......................................................................................25
ARMD Emulation Type ................................................................................25
SUPER IO CONFIGURATION SCREEN .........................................................26
Serial Port1 Address....................................................................................26
Serial Port1 IRQ...........................................................................................27
Serial Port2 Address....................................................................................27
Serial Port2 IRQ...........................................................................................27
Serial Port2 Mode ........................................................................................27
HARDWARE HEALTH CONFIGURATION SCREEN ......................................28
Hardware Health Function.......................................................................28
PWM 1 Mode Setting/PWM 1 Ramp Rate ..............................................28
ACPI CONFIGURATION SCREEN..................................................................29
Advanced ACPI Configuration Screen.........................................................30
ACPI Version Features............................................................................30
ACPI APIC Support .................................................................................30
AMI OEMB Table.....................................................................................31
Headless Mode........................................................................................31
Chipset ACPI Configuration Screen ............................................................32
Energy Lake Feature...............................................................................32
APIC ACPI SCI IRQ ................................................................................32
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EVENT LOG CONFIGURATION SCREEN......................................................33
View Event Log............................................................................................33
Mark all events as read................................................................................33
Clear Event Log ...........................................................................................33
MPS CONFIGURATION SCREEN ..................................................................34
MPS Revision ..............................................................................................34
PCI EXPRESS CONFIGURATION SCREEN ..................................................35
Active State Power Management.................................................................35
SB PCIE Ports Configuration Screen ..........................................................36
PCIe Port 0..............................................................................................36
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PCIe Port 1 ............................................................................................. 36
PCIe High Priority Port............................................................................ 37
PCIe Port 0 IOxAPIC Enable .................................................................. 37
PCIe Port 1 IOxAPIC Enable .................................................................. 37
SMBIOS CONFIGURATION SCREEN............................................................ 38
SMBIOS SMI Support ................................................................................. 38
REMOTE ACCESS CONFIGURATION SCREEN .......................................... 39
Remote Access SDO ................................................................................. 39
Serial Port Number SDO............................................................................ 39
Serial Port Mode SDO................................................................................ 40
Flow Control SDO ...................................................................................... 40
Redirection After BIOS POST SDO ........................................................... 40
Terminal Type SDO .................................................................................... 41
VT-UTF8 Combo Key Support .................................................................... 41
Sredir Memory Display Delay...................................................................... 41
EMS Support (SPCR) ................................................................................. 41
USB CONFIGURATION SCREEN .................................................................. 42
USB Devices Enabled................................................................................. 42
Legacy USB Support................................................................................... 42
Port 64/60 Emulation SDO......................................................................... 43
USB 2.0 Controller Mode SDO .................................................................. 43
BIOS EHCI Hand-Off SDO......................................................................... 43
Hotplug USB FDD Support ......................................................................... 43
USB Mass Storage Device Configuration Screen....................................... 44
USB Mass Storage Reset Delay............................................................. 44
Emulation Type ....................................................................................... 44
4. PCI/PnP Setup .............................................................................47
Clear NVRAM.................................................................................................. 47
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Plug and Play O/S....................................................................................... 48
PCI Latency Timer........................................................................................... 48
Allocate IRQ to PCI VGA................................................................................. 48
Palette Snooping ............................................................................................. 49
PCI IDE BusMaster ......................................................................................... 49
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OffBoard PCI/ISA IDE Card .............................................................................50
IRQs.................................................................................................................50
DMA .................................................................................................................51
Reserved Memory Size....................................................................................51
5. Boot Setup .................................................................................. 55
BOOT SETTINGS CONFIGURATION SCREEN............................................. 56
Quick Boot SDO .........................................................................................56
Quiet Boot SDO ..........................................................................................56
Add-On ROM Display Mode ........................................................................57
Boot-Up Num-Lock ......................................................................................57
PS/2 Mouse Support....................................................................................57
Wait for ‘F1’ If Error SDO............................................................................58
Hit ‘DEL’ Message Display...........................................................................58
Interrupt 19 Capture.....................................................................................58
Retry Boot Sequence SDO.........................................................................58
BOOT DEVICE PRIORITY SCREEN ..............................................................59
1st - 6th Boot Device SDO..........................................................................59
HARD DISK DRIVES SCREEN .......................................................................60
1st Drive, 2nd Drive, 3rd Drive, etc..............................................................60
REMOVABLE DRIVES SCREEN ....................................................................61
1st Drive, 2nd Drive, 3rd Drive, etc..............................................................61
CD/DVD DRIVES SCREEN.............................................................................62
1st Drive, 2nd Drive, 3rd Drive, etc..............................................................62
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USB DRIVES SCREEN ...................................................................................63
1st Drive, 2nd Drive, 3rd Drive, etc..............................................................63
Network DRIVES SCREEN .............................................................................64
1st Drive, 2nd Drive, 3rd Drive, etc..............................................................64
Other DRIVES SCREEN..................................................................................65
1st Drive, 2nd Drive, 3rd Drive, etc..............................................................65
6. Security Setup ............................................................................ 69
Supervisor Password SDO .............................................................................69
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User Password SDO ...................................................................................... 69
Change Supervisor Password......................................................................... 70
Change User Password................................................................................... 70
Clearing a Supervisor/User Password............................................................ 71
User Access Level........................................................................................... 71
Password Check SDO.................................................................................... 71
Boot Sector Virus Protection ........................................................................... 72
Primary Master HDD User Password .............................................................. 72
CP305 Password Support ............................................................................... 72
Two Levels of Password Protection ............................................................ 72
Remember the Password............................................................................ 72
7. Chipset Setup ..............................................................................75
NORTHBRIDGE CONFIGURATION SCREEN ............................................... 76
DRAM Frequency........................................................................................ 76
Memory Hole............................................................................................... 77
Boots Graphic Adapter Priority SDO.......................................................... 77
Internal Graphics Mode Select.................................................................... 77
Video Function Configuration Screen.......................................................... 78
DVMT Mode Select................................................................................. 78
DVMT/FIXED Memory ............................................................................ 78
SOUTHBRIDGE CONFIGURATION SCREEN ............................................... 79
USB Functions ............................................................................................ 79
USB 2.0 Controller SDO ............................................................................ 79
8. OEM Feature ................................................................................83
CLOCK SPREADING SCREEN ...................................................................... 84
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Spread Spectrum Modulation SDO............................................................ 84
LAN BOOT SCREEN ...................................................................................... 85
LAN Boot SDO ........................................................................................... 85
Interface for LAN Boot SDO....................................................................... 85
CP305 REAR I/O GPIO SCREEN (only on Rear I/O Version) ........................ 86
GPI0 - GPI4 Status...................................................................................... 86
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GPO0 - GPO2 .............................................................................................86
SYSTEM INFO SCREEN.................................................................................87
Board Version ..............................................................................................87
Logic Index ..................................................................................................87
Hardware Index ...........................................................................................87
Serial Number..............................................................................................87
Material Number ..........................................................................................87
Index ............................................................................................................88
CPU Micro Code..........................................................................................88
CPU ID.........................................................................................................88
Hardware Version ........................................................................................88
ICH7-R Version............................................................................................88
Rear I/O Config............................................................................................88
System Slot..................................................................................................88
CP305 FRONT/REAR CONFIG SCREEN ......................................................89
VGA Connector SDO..................................................................................89
Serial Port 1 SDO .......................................................................................90
Gig. Ethernet 1 / Gig. Ethernet 2 SDO........................................................90
SATA Port SDO ..........................................................................................90
SETUP DEFAULT CONFIGURATION SCREEN .............................................91
Store current settings...................................................................................91
Clear Configuration Block ............................................................................92
Override Structure present ..........................................................................92
Kontron EEPROM Release Version ............................................................92
OEM EEPROM Release Version.................................................................92
P R E L I M I N A R Y
Config. Block Activation Flag .......................................................................92
WRITE PROTECTION SCREEN.....................................................................93
Firmware flash SDO ...................................................................................93
One shot WR enable ...................................................................................94
PCI SCREEN ...................................................................................................95
Delay for PCI Config Cycle SDO ................................................................95
Accept Class Code FF SDO .......................................................................95
PCI-to-PCI Bridge Reset SDO....................................................................96
WATCHDOG SCREEN....................................................................................97
Active for Boot SDO....................................................................................97
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WD Active Time SDO................................................................................. 98
LED CONTROL SCREEN ............................................................................... 99
LED Mode for OS........................................................................................ 99
LED0 Mode for OS...................................................................................... 99
LED1 Mode for OS.................................................................................... 100
9. Exit Menu ...................................................................................103
Save Changes and Exit................................................................................. 103
Discard Changes and Exit ............................................................................. 103
Discard Changes........................................................................................... 104
Discard Changes Screen .......................................................................... 104
Load Optimal Defaults................................................................................... 105
Load Optimal Defaults Screen ................................................................. 105
Load Fail-Safe Defaults................................................................................. 105
10. POST Codes ...............................................................................109
Bootblock Initialization Code Checkpoints..................................................... 109
Bootblock Recovery Code Checkpoints .........................................................110
POST Code Checkpoints ...............................................................................111
DIM Code Checkpoints...................................................................................113
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CP305 BIOS Starting BIOS Setup
Chapter 1
1
Starting BIOS Setup
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CP305 BIOS Starting BIOS Setup
1. Starting BIOS Setup
The CP305 is provided with a Kontron-customized, pre-installed and configured version of
AMI’s BIOS. This BIOS is based on the AMIBIOS®8 core which provides a variety of new and
enhanced functions specifically tailored to the hardware features of the CP305.
To take advantage of these functions, the BIOS comes with a setup program which provides
quick and easy access to the individual function settings for control or modification of the BIOS
configuration.
The setup program allows the accessing of various menus which provide functions or access
to sub-menus with more specific functions of their own. The individual menus and the configurable functions are described in this guide.
To start the BIOS Setup program, follow the steps below:
STEP DESCRIPTION
1 Power on the board
2 Press the <Delete> key on your keyboard when the following text prompt appears:
Press DEL to run Setup
P R E L I M I N A R Y
3 After pressing the <Delete> key, the CP305 Main BIOS Setup screen is displayed. Access is now
available to all of the other setup screens by simply selecting the appropriate menu tab.
Note: The <Delete> key is normally used to start the BIOS Setup program. If the CP305
is connected to a terminal, use the <F4> key to start the BIOS Setup program.
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Starting BIOS Setup CP305 BIOS
Main Setup Menu
The Main setup menu is the first screen that appears after starting the setup program.
At the top of this screen and all of the other major screens, there is a setup menu selection bar,
which permits access to all of the other major setup menus. These menus are selected via the
left-right arrow keys.
All setup menu screens have two main frames. The left frame displays all the functions that can
be configured. They are displayed in blue. Functions displayed in gray provide information
about the status or the operational configuration.
The right frame displays the key legend. Above the key legend is an area reserved for a text
message. When an function is selected in the left frame, it is displayed in white. Often a text
message will accompany it..
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Setup Default Override (SDO)
BIOS normally has to two types of default settings: Optimal and Fail-Safe, which can be loaded
as required.
The BIOS provides functionality which permits overriding of the default settings for Optimal and
Fail-Safe defaults for certain functions to be specified. This functionality is known as “Setup Default Override” and its usage is documented under the OEM Feature: Setup Default Configuration (SDO).
Functions for which the Optimal and Fail-Safe defaults can be overridden are indicated by the
superscripted letters SDO after the function title: e.g. Remote Access
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SDO
.
CP305 BIOS Starting BIOS Setup
Navigation
The CP305 BIOS setup program uses a hot key-based navigation system. Most of these hot
keys can be used at any time during the setup navigation process. These keys include <F1>,
<F10>, <Enter>, <ESC>, <Arrow> keys, and so on.
Note: There is a hot key legend located in the right frame on most CP305 setup screens.
HOT KEY DESCRIPTION
→← Left/Right The Left and Right <Arrow> keys are used to select a major setup screen.
For example: Main Screen, Advanced Screen, Chipset Screen, and so on.
↑↓ Up/Down The Up and Down <Arrow> keys are used to select a setup function or a sub-screen.
+- Plus/Minus The Plus and Minus <Arrow> keys are used to change the field value of a particular setup
function.
For example: Date and Time.
Tab The <Tab> key is used to select function fields.
Note: The <F8> key on the keyboard is the Fail-Safe key. It is not displayed on the CP305
key legend by default. To set the Fail-Safe settings of the BIOS, press the <F8> key
on your keyboard. It is located on the upper row of a standard 101 keyboard. The
Fail-Safe settings allow booting with the least amount of options set. This can lessen the probability of conflicting settings.
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Starting BIOS Setup CP305 BIOS
HOT KEY DESCRIPTION
F1 The <F1> key is used to display the General Help screen.
Press the <F1> key to open the General Help screen.
F10 The <F10> key is used to save any changes you have made and exit CP305 Setup. Press the
<F10> key to save your changes. The following screen will appear:
Press the <Enter> key to save the configuration and exit. To abort this function and return to
the previous screen, use the <Arrow> key to select Cancel and then press the <Enter> key.
ESC The <Esc> key is used to discard any changes you have made and exit the CP305 Setup.
Press the <Esc> key to exit the CP305 setup without saving the changes. The following screen
will appear:
P R E L I M I N A R Y
Press the <Enter> key to discard changes and exit. To abort this function and return to the previous screen, use the <Arrow> key to select Cancel and then press the <Enter> key.
Enter The <Enter> key is used to display or change the function setting listed for a particular setup
item. The <Enter> key can also be used to display the setup sub-screens.
Note: If the CP305 is connected to a terminal, the <F8>, <F9> and <F10> keys cannot be
used via the serial port.
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CP305 BIOS Main Setup
Chapter 1
2
Main Setup
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CP305 BIOS Main Setup
2. Main Setup
Upon entering the BIOS Setup program, the Main setup screen is displayed. This screen provides very basic system information as well as functions for setting the system time and date.
In addition, the remaining major setup menus can be accessed from this screen. This screen
can also be selected from any other major setup screen by using the Main tab.
System Time
SETTING DESCRIPTION
<HH:MM:SS> Use this function to change the system time.
Select System Time using the Up and Down <Arrow> keys. Enter the new values through
the keyboard. Press the <Tab> key or the Left and Right <Arrow> keys to move between
fields.
Note: The time is in 24-hour format. For example, 5:30 A.M. appears as 05:30:00, and
5:30 P.M. as 17:30:00.
System Date
SETTING DESCRIPTION
<MM/DD/YYYY> Use this function to change the system date.
Select System Date using the Up and Down <Arrow> keys. Enter the new values through
the keyboard. Press the <Tab> key or the Left and Right <Arrow> keys to move between
fields.
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CP305 BIOS Advanced Setup
Chapter 1
3
Advanced Setup
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CP305 BIOS Advanced Setup
3. Advanced Setup
Select the Advanced tab to enter the Advanced Setup screen. This screen lists the advanced
configuration sub-screens. To display a sub-screen, select it using the <Arrow> keys and press
<Enter>.
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Advanced Setup CP305 BIOS
CPU CONFIGURATION SCREEN
This screen provides basic information about the CPU and functions for specifying CPU configuration settings.
Max CPUID Value Limit
This function is used to determine the values that the operating system can write to the
CPUID's EAX register to obtain information about the processor.
Note: This function must be disabled for Windows XP.
SETTING DESCRIPTION
P R E L I M I N A R Y
Disabled Use this setting to disable the Max. CPUID Value Limit.
Enabled Use this setting to enable the Max. CPUID Value Limit.
Optimal and Fail-Safe default settings: Disabled
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CP305 BIOS Advanced Setup
CPU Thermal Monitor Function
This function is used to specify the Thermal Monitor Feature. BIOS chooses Intel® Thermal
Monitor 1 (TM1) to control the processor temperature and the power consumption by activating
the Thermal Control Circuit (TCC) when the processor silicon reaches its maximum operating
temperature.
If the processor supports the Intel® Enhanced SpeedStep™ technology, BIOS chooses Intel®
Thermal Monitor 2 (TM2), which controls the processor temperature and power consumption
by initiating an Intel® Enhanced Speedstep™ Technology transition when the processor silicon
reaches its maximum operating temperature.
If Disabled is selected, the BIOS disables the Thermal Monitor 1 or the Thermal Monitor 2 Feature respectively, i.e. the BIOS disables the CPU built in automatic thermal throttling. If the CPU
becomes overheated, the CP305 will shut off automatically.
SETTING DESCRIPTION
Disabled Use this setting to disable the CPU Thermal Monitor function.
Enabled Use this setting to enable the CPU Thermal Monitor function.
Optimal and Fail-Safe settings: Enabled
Note: Intel® Thermal Monitor 1 or Intel® Thermal Monitor 2 must be enabled for the pro-
cessor to operate within specification.
SDO
Execute-Disable Bit Capability
This function is used to enable the Execute-Disable Bit Capability feature.
SETTING DESCRIPTION
Disabled Use this setting to disable the Execute-Disable Bit Capability function. When this setting is
used, the BIOS forces the XD feature flag to always return to 0.
Enabled Use this setting to enable the Execute-Disable Bit Capability function.
Optimal and Fail-Safe default settings: Enabled
Hyper Threading Technology
This function allows the ACPI OSs to simulate two processors. This means that only one physical CPU is present but the OS sees two virtual CPUs. Via this function, the system performance can be significantly improved.
SETTING DESCRIPTION
Disabled Use this setting to disable the Hyper Threading function.
Enabled Use this setting to enable the Hyper Threading function.
Optimal and Fail-Safe default settings: Enabled
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Advanced Setup CP305 BIOS
Intel® SpeedStep™ tech.
This function is used to specify the Intel® SpeedStep™ feature.
SETTING DESCRIPTION
Disabled Use this setting to prevent the system from controlling the CPU frequency via the Intel®
SpeedStep™ function (GV3 technology). The CPU will run at maximum speed.
Enabled Use this setting to allow the operating system to control the CPU speed via the Intel®
SpeedStep™ function (GV3 technology). The BIOS will start with high CPU speed.
Optimal and Fail-Safe default settings: Enabled
SDO
Intel® C-STATE tech
Modern CPUs can be put into a deeper sleeping state when idle at the cost of longer wake-up
times. This function is used to prevent the OS from putting the CPU in a deeper sleep state
than C1.
SETTING DESCRIPTION
Disabled Use this setting to prevent the OS from using any C-State except C1.
Enabled Use this setting to allow all supported C-States.
Optimal and Fail-Safe default settings: Enabled
Enhanced C-States
When the CPU is idle, the OS can put the CPU into a halt state. This function is used to exchange the normal halt state by the extended one that also lowers the CPU voltage.
SETTING DESCRIPTION
Enabled Use this setting to enable the enhanced C1 state.
Disabled Use this setting to disable the enhanced C1 state.
Optimal and Fail-Safe default settings: Enabled
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CP305 BIOS Advanced Setup
IDE CONFIGURATION SCREEN
This screen provides functions for specifying IDE configuration settings.
ATA/IDE Configuration
This function specifies the IDE channel modes.
SETTING DESCRIPTION
Disabled Use this setting to completely disable all PATA and SATA devices. This setting prevents the
OS from detecting the controller devices.
Compatible Use this setting to allow the PATA channel and two out of four SATA devices to be joined
together to one legacy IDE compatible PCI controller device.
Enhanced Use this setting to allow the PATA channel and the SATA devices to appear as two indepen-
dent PCI controller devices.
Optimal and Fail-Safe default settings: Compatible
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Advanced Setup CP305 BIOS
Legacy IDE Channels
This function controls the configuration of the available device channels within the legacy compatible IDE controller device.
Note: This function is only available when the IDE Configuration is set to Compatible.
SETTING DESCRIPTION
SATA Only Use this setting to specify the onboard SATA connector (SATA0) as the primary master,
the daughterboard connector (SATA2) as the secondary master, the RIO-1 channel
(SATA1) as the primary slave, and the RIO-2 channel (SATA3) as the secondary slave.
Reserved Reserved for future use.
SATA Pri, PATA Sec Use this setting to specify the onboard SATA connector as the primary master, the
daughterboard SATA connector as the primary slave and the PATA channel as the secondary channel.
PATA Only Use this setting to specify the PATA channel as the primary channel. With this setting,
all SATA connectors are disabled by default.
Optimal and Fail-Safe default settings: SATA Pri, PATA Sec
Configure SATA as
This function controls the SATA controller device's operating mode.
SETTING DESCRIPTION
Disabled Use this setting to disable the SATA controller.
IDE Use this setting to allow the SATA controller to operate as a legacy IDE controller. In this
case, old IDE drivers can be used.
RAID The CP305 does not provide RAID support. Thus, this setting has no effect on the CP305.
AHCI Use this setting to allow the SATA controller to operate as an AHCI controller. In this case,
AHCI drivers must be used.
Optimal and Fail-Safe default settings when the Configuration is set to Enhanced: IDE
Optimal and Fail-Safe default settings when the Configuration is set to PATA only: Disabled
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CP305 BIOS Advanced Setup
Configure SATA Channels
This function configures the BIOS logical drive order.
Note: This function is only available when the IDE Configuration is set to Enhanced.
SETTING DESCRIPTION
Before PATA Use this setting to specify that the SATA controller device's channels are enumerated as pri-
mary and slave channels and the PATA controller's channel is enumerated as third.
Behind PATA Use this setting to specify that the PATA controller channel is enumerated as primary and
the SATA controller's channels are enumerated as third and forth.
Optimal and Fail-Safe default settings: Before PATA
Hard Disk Drive Write Protect
This function is used to enable write protection for all hard disk drives in the system.
SETTING DESCRIPTION
Disabled Use this setting to allow the hard disk drive to be used normally. Read, write, and erase
functions can be performed to the hard disk drive.
Enabled Use this setting to prevent the hard disk drive from being erased.
Optimal and Fail-Safe default settings: Disabled
IDE Detect Timeout (Seconds)
This function is used to specify the number of seconds after which the BIOS stops searching
for IDE devices. Basically, this allows you to fine-tune the settings to allow for faster boot times.
Adjust this setting until a suitable timing that can detect all IDE disk drives attached is found.
Note: Different IDE disk drives take longer for the BIOS to locate than others do.
SETTING DESCRIPTION
0 This value is the best setting to use if the onboard IDE controllers are set to a specific IDE disk
drive in the AMIBIOS.
5 Use this setting to stop the BIOS from searching the IDE bus for IDE disk drives within five sec-
onds. A large majority of ultra ATA hard disk drives can be detected well within five seconds.
10 Use this setting to stop the BIOS from searching the IDE bus for IDE disk drives within 10 seconds.
15 Use this setting to stop the BIOS from searching the IDE bus for IDE disk drives within 15 seconds.
20 Use this setting to stop the BIOS from searching the IDE bus for IDE disk drives within 20 seconds.
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25 Use this setting to stop the BIOS from searching the IDE bus for IDE disk drives within 25 seconds.
30 Use this setting to stop the BIOS from searching the IDE bus for IDE disk drives within 30 seconds.
35 Use this setting to stop the BIOS from searching the IDE bus for IDE disk drives within 35 seconds.
This is the recommended setting when all IDE connectors are set to AUTO in the BIOS setting.
Optimal and Fail-Safe default settings: 35
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Advanced Setup CP305 BIOS
ATA (PI) 80-Pin Cable Detection
This function is used to select the method used to detect the ATA (PI) 80-pin cable.
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.
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. Because 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-conductor 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.
P R E L I M I N A R Y
Page 20 ID 1035-8356, Rev. 1.0
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