Detailed instructions for use are in the User's Guide.
[. . . ] EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL® PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. INTEL PRODUCTS ARE NOT INTENDED FOR USE IN MEDICAL, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS. All Intel desktop boards are evaluated as Information Technology Equipment (I. T. E. ) for use in personal computers (PC) for installation in homes, offices, schools, computer rooms, and similar locations. The suitability of this product for other PC or embedded non-PC applications or other environments, such as medical, industrial, alarm systems, test equipment, etc. [. . . ] IEEE-1394b also supports higher data transfer rates (800 Mbits/sec) and longer distances.
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Intel Desktop Board D955XBK Technical Product Specification
For information about The location of the back panel IEEE-1394a connector The location of the front panel IEEE-1394a/b connectors The signal names of the front panel IEEE-1394a/b connectors
Refer to Figure 17, page 54 Figure 19, page 56 Section 2. 7. 2. 6, page 66
1. 10 I/O Controller
The I/O controller provides the following features: · · · · · · · One serial port One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support Serial IRQ interface compatible with serialized IRQ support for PCI Conventional bus systems PS/2-style mouse and keyboard interfaces Interface for one 1. 44 MB or 2. 88 MB diskette drive Intelligent power management, including a programmable wake-up event interface PCI Conventional bus power management support
The BIOS Setup program provides configuration options for the I/O controller.
1. 10. 1
Serial Port
The board has one serial port connector located on the back panel. The serial port supports data transfers at rates of up to 115. 2 kbits/sec with BIOS support.
For information about The location of the serial port A connector Refer to Figure 18, page 55
1. 10. 2
Parallel Port
The 25-pin D-Sub parallel port connector is located on the back panel. Use the BIOS Setup program to set the parallel port mode.
For information about The location of the parallel port connector Refer to Figure 18, page 55
1. 10. 3
Diskette Drive Controller
The I/O controller supports one diskette drive. Use the BIOS Setup program to configure the diskette drive interface.
For information about The location of the diskette drive connector on the D955XBK board Refer to Figure 19, page 56
1. 10. 4
Keyboard and Mouse Interface
PS/2 keyboard and mouse connectors are located on the back panel.
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Product Description
NOTE
The keyboard is supported in the bottom PS/2 connector and the mouse is supported in the top PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is connected or disconnected.
For information about The location of the keyboard and mouse connectors Refer to Figure 18, page 55
1. 11 Audio Subsystem
The board supports the Intel High Definition audio subsystem based on the Sigmatel 9221 or the Sigmatel 9220 audio codec. The audio subsystem supports the following features: · Advanced jack sense for the back panel audio jacks that enables the audio codec to recognize the device that is connected to an audio port. The back panel audio jacks are capable of retasking according to user's definition, or can be automatically switched depending on the recognized device type. Stereo input and output for all back panel jacks Line out and Mic in functions for front panel audio jacks A signal-to-noise (S/N) ratio of 90 dB
· · ·
1. 11. 1
Audio Subsystem Software
Refer to Section 1. 2, page 15
Audio software and drivers are available from Intel's World Wide Web site.
For information about Obtaining audio software and drivers
1. 11. 2
· ·
Audio Connectors
The board contains audio connectors on both the back panel and the component side of the board. The component-side audio connectors include the following: Front panel audio (a 2 x 5-pin connector that provides mic in and line out signals for front panel audio connectors) ATAPI CD-ROM (an optional 1 x 4-pin ATAPI-style connector for connecting an internal ATAPI CD-ROM drive to the audio mixer)
The functions of the back panel audio connectors are dependent on which subsystem is present. The 8-channel (7. 1) audio subsystem is described in Section 1. 11. 3; the 6-channel (5. 1) audio subsystem is described in Section 1. 11. 4.
For information about The locations of the front panel audio connector and the optional ATAPI CD-ROM connector The signal names of the front panel audio connector The signal names of the optional ATAPI CD-ROM connector The back panel audio connectors Refer to Figure 19, page 56 Table 19, page 58 Table 18, page 58 Section 2. 7. 1, page 53
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Intel Desktop Board D955XBK Technical Product Specification
1. 11. 3
· · ·
8-Channel (7. 1) Audio Subsystem
Intel 82801GR I/O Controller Hub (ICH7-R) Sigmatel 9221 audio codec Microphone input that supports a single dynamic, condenser, or electret microphone
The 8-channel (7. 1) audio subsystem includes the following:
The back panel audio connectors are configurable through the audio device drivers. The available configurable audio ports are shown in Figure 9.
Front Panel Audio Connectors
Line Out
Mic In
Surround Left and Right/Retasking Jack [Black] Center channel and LFE (Subwoofer)/ Retasking Jack [Orange]
Side Surround Left and Right/ Line In/Retasking Jack [Blue]
S/PDIF Digital Audio Out Coaxial
S/PDIF Digital Audio Out Optical Mic In/Retasking Jack [Pink] Line Out/Retasking Jack [Lime Green]
OM17555
Figure 9. When the chassis cover is removed, the mechanical switch is in the closed position.
1. 14 Power Management
Power management is implemented at several levels, including: · · Software support through Advanced Configuration and Power Interface (ACPI) Hardware support: Power connector Fan connectors LAN wake capabilities Instantly Available PC technology Resume on Ring Wake from USB Wake from PS/2 devices Power Management Event signal (PME#) wake-up support PCI Express WAKE# signal support
1. 14. 1
ACPI
ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with this board requires an operating system that provides full ACPI support. ACPI features include: · · · · · · Plug and Play (including bus and device enumeration) Power management control of individual devices, add-in boards (some add-in boards may require an ACPI-aware driver), video displays, and hard disk drives Methods for achieving less than 15-watt system operation in the power-on/standby sleeping state A Soft-off feature that enables the operating system to power-off the computer Support for multiple wake-up events (see Table 8 on page 39) Support for a front panel power and sleep mode switch
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Product Description
Table 6 lists the system states based on how long the power switch is pressed, depending on how ACPI is configured with an ACPI-aware operating system.
Table 6. Effects of Pressing the Power Switch
. . . and the power switch is pressed for Less than four seconds Less than four seconds More than four seconds Less than four seconds More than four seconds . . . the system enters this state Power-on (ACPI G0 working state) Soft-off/Standby (ACPI G1 sleeping state) Fail safe power-off (ACPI G2/G5 Soft off) Wake-up (ACPI G0 working state) Power-off (ACPI G2/G5 Soft off)
If the system is in this state. . . Off (ACPI G2/G5 Soft off) On (ACPI G0 working state) On (ACPI G0 working state) Sleep (ACPI G1 sleeping state) Sleep (ACPI G1 sleeping state)
1. 14. 1. 1
System States and Power States
Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. The operating system uses information from applications and user settings to put the system as a whole into a low-power state.
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Intel Desktop Board D955XBK Technical Product Specification
Table 7 lists the power states supported by the board along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states.
Table 7. Power States and Targeted System Power
Sleeping States S0 working S1 Processor stopped Processor States C0 working C1 stop grant Device States D0 working state. D3 no power for wake-up logic, except when provided by battery or external source. Targeted System Power (Note 1) Full power > 30 W 5 W < power < 52. 5 W
Global States G0 working state G1 sleeping state
G1 sleeping state G1 sleeping state G2/S5
S3 Suspend to RAM. [. . . ] Monitors and hard disk drives with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and POST messages cannot be seen. This boot time may be so fast that some drives might be not be initialized at all. If this condition should occur, it is possible to introduce a programmable delay ranging from three to 30 seconds (using the Hard Disk Pre-Delay feature of the Advanced Menu in the Drive Configuration Submenu of the BIOS Setup program).
86
Overview of BIOS Features
3. 8 BIOS Security Features
The BIOS includes security features that restrict access to the BIOS Setup program and who can boot the computer. A supervisor password and a user password can be set for the BIOS Setup program and for booting the computer, with the following restrictions: · · · · · The supervisor password gives unrestricted access to view and change all the Setup options in the BIOS Setup program. [. . . ]