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Intel D925XBC manual

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Table of contents for the manual

  • Page 1

    Intel ® Desktop Board D925XCV/D925XBC Technical Product Specification June 2004 Order Number: C68597-001 The Intel ® Desktop Board D925XCV/D925XBC may cont ain de sign defects or errors known as errata that may cause t he product to deviate from publis hed specificati ons. Current characterized errata are documented in the Inte l Desktop Board D9[...]

  • Page 2

    Re vision History Revision Revision History Date -001 First release of the Intel ® Desktop Board D925XCV/D925XBC Technical Product Specification June 2004 This product specification applies to only standard Intel ® Desktop Boards D925XCV and D925XBC with BIOS identifier CV92510A.86A. Changes to this specification will be publishe d in the Intel D[...]

  • Page 3

    Preface This Technical Product Specification (TPS) specifi es the board layout, components, connectors, power and environmental requirement s, and the BIOS for these Intel ® Desktop Boards: D925XCV and D925XBC. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technica[...]

  • Page 4

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification WARNING Warnings indicate conditions, which if not observed, can cause personal injury. Other Common Notation # Used after a signal name to identify an active-low signal (such as USBP0#) (NxnX) When used in the description of a component, N indicates component type, xn are the rela[...]

  • Page 5

    Contents 1 Product Description 1.1 PCI Bus Terminology Change ...................................................................................... 11 1.2 Board Differences ........................................................................................................ 11 1.3 Overview .......................................................[...]

  • Page 6

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.15 Trusted Platform Module (Optional) ............................................................................. 47 1.15.1 System Requirements ................................................................................... 47 1.15.2 Warning of Potential Data Loss .........[...]

  • Page 7

    Contents 3 Overview of BIOS Features 3.1 Introduction .................................................................................................................. 9 5 3.2 BIOS Flash Memory Organization ............................................................................... 96 3.3 Resource Configuration ................................[...]

  • Page 8

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Figures 1. Desktop Board D925XCV Components ....................................................................... 14 2. Desktop Board D925XBC Components ....................................................................... 16 3. Block Diagram ...................................[...]

  • Page 9

    Contents 14. PCI Configuration Space Map ...................................................................................... 59 15. Interrupts ..................................................................................................................... .6 0 16. PCI Interrupt Routing Map ...................................................[...]

  • Page 10

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification x[...]

  • Page 11

    1 Pr oduct Description What This Chapter Contains 1.1 PCI Bus Terminology Change ...................................................................................... 11 1.2 Board Differences ........................................................................................................ 11 1.3 Overview ....................................[...]

  • Page 12

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification ✏ NOTE Most of the illustrations in this document show only the Desktop Board D925XCV. When there are significant differences between the two Desktop B oards, illustrations of both boards are provided. 1.3 Overview 1.3.1 Feature Summary Table 2 summarizes the major features of th[...]

  • Page 13

    Product Description Table 2. Feature Summary (continued) LAN Support Gigabit (10/100/1000 Mbits/sec) LAN sub system using the Marvell* Yukon* 88E8050 PCI Express Gigabit Ethernet Controller Expansion Capabilities • D925XCV: Four PCI Conventional bus add-in card connectors (SMBus routed to PCI Conventional bus connector 2), two PCI Express x1 bus [...]

  • Page 14

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.3.3 Board Layouts Figure 1 shows the location of the major components on the Desktop Board D925XCV. OM16676 I J B D K L M M O P R S T U CC V W AA X Y Z BB KK LL JJ FF HH EE II E F G H A C Q DD MM GG Figure 1. Desktop Board D925XCV Components Table 4 lists the D925XCV components i[...]

  • Page 15

    Product Description Table 4. D925XCV Components Shown in Figure 1. Item/callout from Figure 1 Description A Auxiliary rear fan connector B ATAPI CD-ROM connector C PCI Express x1 bus add-in card connectors D Audio codec E Front panel audio connector F PCI Conventional bus add-in card connectors G Marvell Yukon 88E8050 PCI Express Gigabit Ethernet C[...]

  • Page 16

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Figure 2 shows the location of the major components on the Desktop Board D925XBC. OM16686 F G A H I J K L M O P Q R S T X U V W Y EE FF HH DD AA Z BB CC B C D E N GG Figure 2. Desktop Board D925XBC Components Table 5 lists the D925XCV components identified in Figure 2. 16[...]

  • Page 17

    Product Description Table 5. D925XBC Components Shown in Figure 2. Item/callout from Figure 2 Description A Audio codec B Front panel audio connector C PCI Conventional bus add-in card connectors D Marvell Yukon 88E8050 PCI Express Gigabit Ethernet Controller E PCI Express x16 bus add-in card connector F Rear chassis fan connector G Back panel conn[...]

  • Page 18

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.3.4 Block Diagram Figure 3 is a block diagram of the major functional areas of the boards. D925XCV only Inte l 9 25X Ch ipse t Intel 82801FR I/O Controller Hub (ICH6-R) Intel 82925X Memory Controller Hub (MCH) 8 Mbit Firmware Hub (FWH) System Bus (800/533 MHz) LGA775 Processor So[...]

  • Page 19

    Product Description 1.4 Online Support To find information about… Visit this World Wide Web site: Intel Desktop Boards D925XCV and D925XBC under “Desktop Board Products” or “Desktop Board Support” http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop Available configurations for the Desktop Board D925X[...]

  • Page 20

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.6 System Memory The boards have four DIMM sockets and support the following memory features: • 1.8 V (only) DDR2 SDRAM DIMMs • Unbuffered, single-sided or double-sided DIMMs with the following restriction: Double-sided DIMMS with x16 or ganization are not supported. • 4 GB [...]

  • Page 21

    Product Description 1.6.1 Memory Configurations The Intel 82925X MCH supports two t ypes of memory organization: • Dual channel (Interleaved) mode . This mode offers the highest throughput for real world applications. Dual channel mode is enabled when the installed memory capacities of both DIMM channels are equal. T echnology and device width ca[...]

  • Page 22

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.6.1.1 Dual Channel (Inte rleaved) Mode Configurations Figure 5 shows a dual channel configuration using two DIMMs. In this example, the DIMM0 (blue) sockets of both channels are populated with identical DIMMs. OM17123 Channel A, DIMM 0 Channel A, DIMM 1 Channel B, DIMM 0 Channel [...]

  • Page 23

    Product Description Figure 7 shows a dual channel conf iguration using four DIMMs. In this example, the combined capacity of the two DIMMs in Channel A equal the combined capacity of the two DIMMs in Channel B. Also, the DIMMs are matched between DIMM0 and DIMM1 of both channels. OM17124 Channel A, DIMM 0 Channel A, DIMM 1 Channel B, DIMM 0 Channel[...]

  • Page 24

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.6.1.2 Single Channel (Asymmetric) Mode Configurations ✏ NOTE Dual channel (Interleaved) mode configurations provide the highest memory throughput. Figure 8 shows a single channel configuration usi ng one DIMM. In this example, only the DIMM0 (blue) socket of Channel A is popula[...]

  • Page 25

    Product Description 1.7 Intel ® 925X Chipset The Intel 925X chipset consists of the following devices: • Intel 82925X Memory Controller Hub (MCH) with Direct Media Interface (DMI) interconnect • Intel 82801FR I/O Controller Hub (ICH6-R) with DMI interconnect • Firmware Hub (FWH) The MCH is a centralized controller for the syst em bus, the me[...]

  • Page 26

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification • Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer rates of up to 33 MB/sec. • ATA-66: DMA protocol on IDE bus supporting host and target throttling and transfer rates of up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is device[...]

  • Page 27

    Product Description For information about Refer to The location of the Serial ATA IDE connec tors on the D925XCV board Figure 21, page 68 The location of the Serial ATA IDE connec tors on the D925XBC board Figure 22, page 70 1.7.2.3 Serial ATA RAID The ICH6-R supports RAID (Redundant Array of I ndependent Drives) level 0 and RAID level 1 on the Ser[...]

  • Page 28

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.7.3 Real-Time Clock, CMOS SRAM, and Battery A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from th[...]

  • Page 29

    Product Description # INTEGRATOR’S NOTES When using this connector, observe the following precautions: • Do not use a Y-adapter, power splitter, or SATA power adapter to attach storage devices (such as hard disk drives or CD/DVD drives) to th is connector. This connector will not provide adequate power for storage devices. • Do not connect an[...]

  • Page 30

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification For information about Refer to The location of the parallel port connector Figure 20, page 66 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 Refer to The lo[...]

  • Page 31

    Product Description 1.11 Audio Subsystem The boards support the Intel High Definition audio subsystem based on the Realtek ALC880 or the Realtek ALC860 audio codec. The audio subsystem supports the following features: • Advanced jack sense (front and rear panel) that enables the audio codec to recognize the device that is connected to an audio po[...]

  • Page 32

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.11.3 8-Channel (7.1) Audio Subsystem The 8-channel (7.1) audio subsystem includes the following: • Intel 82801FR I/O Controller Hub (ICH6-R) • Realtek ALC880 audio codec • Microphone input that supports a single dyna mic, condenser, or electret microphone The front and back[...]

  • Page 33

    Product Description Figure 11 is a block diagram of the 8-channel (7.1) audio subsystem. 82801FR I/O Controller Hub (ICH6- R) OM16994 Intel High Definition Audio Link Realtek ALC880 Audio Codec Line Out/Retasking Jack D Front Panel Retasking Jack F [Port 2] CD-ROM Line In/Retasking Jack C Mic In/Retasking Jack B S/PDIF Surround Left-Right/Retasking[...]

  • Page 34

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.11.4 6-Channel (5.1) Audio Subsystem The 6-channel (5.1) audio subsystem includes the following: • Intel 82801FB I/O Controller Hub (ICH6) • Realtek ALC860 audio codec • Microphone input that supports a single dyna mic, condenser, or electret microphone The front and back p[...]

  • Page 35

    Product Description 1.12 LAN Subsystem The LAN subsystem includes the Marvell Yukon 88E50 Gigabit (10/100/1000 Mbits/sec) Ethernet Controller and an RJ-45 LAN connector with integrated status LEDs. 1.12.1 Marvell Yukon 88E8050 PCI Express 1.0a Integrated MAC/PHY Gigabit Ethernet Controller The Marvell Yukon 88E8050 provides the following functions:[...]

  • Page 36

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.12.3 Alert Standard Format (ASF) Support The boards provide the following ASF support for the onboard 10/100/1000 LAN subsystem, PCI Express x1 bus add-in LAN cards, and PCI Conven tional bus add-in LAN cards installed in PCI Conventional bus slot 2: • Monitoring of system firm[...]

  • Page 37

    Product Description 1.13 Hardware Management Subsystem The hardware management features enable the Desk top Boards to be compatible with the Wired for Management (WfM) specification. The Desktop Bo ard has several hardware management features, including the following: • Fan monitoring and control (through the hard ware monitoring and fan control [...]

  • Page 38

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.13.2 Thermal Monitoring Figure 15 shows the location of the sensors and fan connectors on the D925XCV board. OM16679 B A C E F G D 1 3 1 3 1 4 1 4 Item Description A Remote ambient temperature sensor B Thermal diode, located on processor die C Ambient temperature sensor, internal[...]

  • Page 39

    Product Description Figure 16 shows the location of the sensors and fan connectors on the D925XBC board. OM16689 B A C E F D 1 3 1 3 1 4 Item Description A Remote ambient temperature sensor B Thermal diode, located on processor die C Ambient temperature sensor, internal to hardware monitoring and fan control ASIC D Processor fan E Rear chassis fan [...]

  • Page 40

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.13.3 Fan Monitoring Fan monitoring can be implemen ted using Intel Desktop Utilities, LANDesk* software, or third- party software. The level of m onitoring and control is dependent on the hardware monitoring ASIC used with the Desktop Board. For information about Refer to The fun[...]

  • Page 41

    Product Description Table 8. Effects of Pressing the Power Switch If the system is in this state… …and the power switch is pressed for …the system enters this state Off (ACPI G2/G5 – Soft off) Less than four seconds Power-on (ACPI G0 – working state) On (ACPI G0 – working state) Less than four seconds Soft-off/Standby (ACPI G1 – sleep[...]

  • Page 42

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 9 lists the power states supported by the Desktop Boards D925XCV and D925XBC along with the associated system power targets. See th e ACPI specification for a complete description of the various system and power states. Table 9. Power States and Targeted System Power Global S[...]

  • Page 43

    Product Description 1.14.1.2 Wake-up Devices and Events Table 10 lists the devices or specific events th at can wake the computer from specific states. Table 10. Wake-up Devices and Events These devices/events can wake up the computer… …from this state LAN S1, S3, S4, S5 (Note) Modem (back panel Serial Port A) S1, S3 PME# signal S1, S3, S4, S5 [...]

  • Page 44

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Resume on Ring enables telephony devices to access th e computer when it is in a power-managed state. The method used depends on the type of telephony device (external or internal). ✏ NOTE The use of Resume on Ring and Wake from USB technologies from an ACPI state requires an ope[...]

  • Page 45

    Product Description Depending on the LAN implementation, the De sktop Boards D925XCV and D925XBC support LAN wake capabilities with ACPI in the following ways: • The PCI Express WAKE# signal • The PCI Conventional bus PME# signal for PCI 2.2 compliant LAN designs • The onboard LAN subsystem 1.14.2.4 Instantly Available PC Technology CAUTION F[...]

  • Page 46

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.14.2.9 WAKE# Signal Wake-up Support When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state. 1.14.2.10 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the c[...]

  • Page 47

    Product Description 1.15 Trusted Platform Module (Optional) The optional Trusted Platform Module (TPM) is a component on the desktop board that is specifically designed to enhance platform s ecurity above-and-beyond the capabilities of today’s software by providing a protected space for key operati ons and other security critical tasks. Using bot[...]

  • Page 48

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.15.3 Security Precautions Security, like any other aspect of computer main tenance requires planning. What is unique about security has to do with understanding who "frie nds" and adversaries are. The TPM provides mechanisms to enable the owner/user to protect th eir in[...]

  • Page 49

    Product Description 1.15.3.2 Emergency Recovery File Back Up Procedures The Emergency Recovery Token ( SPEmRecToken.xml ) must be saved or moved to a removable media (floppy, USB drive, CDR, flash media, etc) . Once this is done, the removable media should be stored in a secure location. DO NOT LEAVE ANY COPIES of the Emergency Recovery Token on th[...]

  • Page 50

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 1.15.5 Enabling the Trusted Platform Module The Trusted Platform Module is disabled by defau lt when shipped to insure that the owner/end customer of the system initializes the TPM and c onfigures all security passwords. The owner/end customer should use the following steps to enab[...]

  • Page 51

    Product Description 15. Follow the instructions and create and doc ument the locations for both the archive and restoration key files. The key archive should be located on a removable media and stored in a secure location when not in use. 16. Create and document the password to protect the key archive. 17. Provide the TPM Owner password to allow th[...]

  • Page 52

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 4. Follow the instructions during the Security Platform Initialization, and append the Emergency Recovery Archive to the existing archive. 5. Provide all the necessary passwords, files, and f ile locations as requested . It may take up to 20 minutes for Security Platform Initializa[...]

  • Page 53

    Product Description 1.15.9 Software Support • For assistance with the Infineon Security Platform Software, visit the web at: http://www.infineon.com • For assistance with the Wave System EMBASSY Trust Suite, visit the web at: http://www.wave.com/support/ets.html • For additional information about TPM and enhancing PC security, visit: https://[...]

  • Page 54

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 54[...]

  • Page 55

    2 T echnical Reference What This Chapter Contains 2.1 Introduction .................................................................................................................. 5 5 2.2 Memory Resources ...................................................................................................... 55 2.3 DMA Channels ....................[...]

  • Page 56

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification • Memory-mapped I/O that is dynamically allocat ed for PCI Conventional and PCI Express add- in cards The amount of installed memory that can be us ed will vary based on add-in cards and BIOS settings. Figure 18 shows a schematic of the system memory map. All installed system mem[...]

  • Page 57

    Technical Reference 2.2.2 Memory Map Table 11 lists the system memory map. Table 11. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K - 4194304 K 100000 - FFFFFFFF 4095 MB Ex tended memory 960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS 896 K - 960 K E0000 - EFFFF 64 KB Reserved 800 K - 896 K C8000 - DFFFF 96 KB[...]

  • Page 58

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.4 Fixed I/O Map Table 13. I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes Used by the Desktop Board D925XCV/D925XBC. Refer to the ICH6-R data sheet for dy namic addressing information. 0170 - 0177 8 bytes Secondary Parallel ATA IDE channel command block 01F0 - 01F7 8[...]

  • Page 59

    Technical Reference 2.5 PCI Configuration Space Map Table 14. PCI Configuration Space Map Bus Number (hex) Device Number (hex) Function Number (hex) Description 00 00 00 Memory controller of Intel 82925X component 00 01 00 PCI Express x16 graphics port 00 1B 00 Intel High Definition Audio Controller 00 1C 00 PCI Express port 1 (PCI Express x1 bus c[...]

  • Page 60

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.6 Interrupts The interrupts can be routed through either the Programmable Interrupt Controller (PIC) or the Advanced Programmable Interrupt Controller (API C) portion of the ICH6-R component. The PIC is supported in Windows 98 SE and Windows ME and uses the first 16 interrupts. T[...]

  • Page 61

    Technical Reference 2.7 PCI Conventional Interrupt Routing Map This section describes interrupt sharing and how the interrupt signals are connected between the PCI Conventional bus connectors and onboard PCI Conventional de vices. The PCI Conventional specification describes how interrupts can be sh ared between devices attached to the PCI Conventi[...]

  • Page 62

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 16. PCI Interrupt Routing Map ICH6-R PIRQ Signal Name PCI Interrupt Source PIRQA PIRQB PIRQC PIRQD PIRQE PIRQF PIRQG PIRQH IEEE-1394a controller INTA PCI bus connector 1 INTD INTA INTB INTC PCI bus connector 2 INTC INTB INTA INTD PCI bus connector 3 (Note) INTD INTC INTA INTB[...]

  • Page 63

    Technical Reference 2.8 Connectors CAUTION Only the following connectors have overcurrent pr otection: back panel USB, front panel USB, and PS/2. The other internal connectors are not overcurre nt protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals. Do not use these connectors to power[...]

  • Page 64

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.8.1.1 Back Panel Connectors For 8-Channel (7.1) Audio Subsystem Figure 19 shows the location of the back panel c onnectors for boards equipped with the 8-channel (7.1) audio subsystem. The back panel connector s are color-coded. The figure legend (Table 17) lists the colors used [...]

  • Page 65

    Technical Reference Table 17. Back Panel Connectors Shown in Figure 19. Item/callout from Figure 19 Description A PS/2 mouse port [Green] B PS/2 keyboard port [Purple] C Serial port A [Teal] D Parallel port [Burgundy] E Digital audio out coaxial [Orange] F Digital audio out optical G Front left/right channel audio out/Two channel audio line out/Ret[...]

  • Page 66

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.8.1.2 Back Panel Connectors For 6-Channel (5.1) Audio Subsystem Figure 20 shows the location of the back panel c onnectors for boards equipped with the 6-channel (5.1) audio subsystem. The back panel connector s are color-coded. The figure legend (Table 18) lists the colors used [...]

  • Page 67

    Technical Reference Table 18. Back Panel Connectors Shown in Figure 20. Item/callout from Figure 20 Description A PS/2 mouse port [Green] B PS/2 keyboard port [Purple] C Serial port A [Teal] D Parallel port [Burgundy] E Audio line in/Retasking Jack C [Blue] F Front left/right channel audio out/Two channel audio line out/Retasking Jack D [Lime green[...]

  • Page 68

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.8.2 Component-side Connectors Figure 21 shows the locations of the compone nt-side connectors of the D925XCV board. OM16681 AC D F E Q P R S T U V W X Y DD CC AA Z G H J I K L M N O 1 14 1 13 4 4 12 91 0 3 1 4 1 2 39 40 23 24 2 1 2 33 34 1 1 2 10 1 2 10 1 2 10 1 1 2 2 1 10 9 1 3 [...]

  • Page 69

    Technical Reference Table 19. D925XCV Component-side Connectors Shown in Figure 21. Item/callout from Figure 21 Description A PCI Conventional bus add-in card connector 4 B Auxiliary rear fan connector C PCI Conventional bus add-in card connector 3 D ATAPI CD-ROM connector E PCI Express x1 bus add-in card connector 2 F PCI Express x1 bus add-in car[...]

  • Page 70

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Figure 22 shows the locations of the com ponent-side connectors of the D925XBC board. OM16691 K J L M N O P Q R S T B A C E D F G H I 14 1 13 4 12 91 0 3 1 4 1 2 39 40 23 24 2 1 2 33 34 1 1 2 10 1 2 10 1 2 10 1 X W V U 1 11 11 2 2 1 10 9 1 3 1 1 4 Y Figure 22. D925XBC Component-sid[...]

  • Page 71

    Technical Reference Table 20. D925XBC Component-side Connectors Shown in Figure 22. Item/callout from Figure 22 Description A PCI Express x1 bus add-in card connector B Front panel audio connector C PCI Conventional bus add-in card connector 2 D Front panel IEEE-1394a connector (optional) E PCI Conventional bus add-in card connector 1 F PCI Express[...]

  • Page 72

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 21. ATAPI CD-ROM Connector Pin Signal Name 1 Left audio input from CD-ROM 2 CD audio differential ground 3 CD audio differential ground 4 Right audio input from CD-ROM Table 22. Front Panel Audio Connector Pin Signal Name Pin Signal Name 1 Port E [Port 1] Left Channel 2 Groun[...]

  • Page 73

    Technical Reference Table 25. Chassis Intrusion Connector Pin Signal Name 1 Intruder 2 Ground Table 26. SCSI Hard Drive Activity LED Connector (Optional) Pin Signal Name 1 SCSI_ACT# 2 No connect Table 27. Serial ATA Connectors Pin Signal Name 1 Ground 2 TXP 3 TXN 4 Ground 5 RXN 6 RXP 7 Ground Table 28. Auxiliary Power Output Connector Pin Signal Na[...]

  • Page 74

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.8.2.1 Power Supply Connectors The board has three power supply connectors: • Main power – a 2 x 12 connector. This connector is compatible with 2 x 10 connectors previously used on Intel Desktop boards. The board supports the use of ATX12V power supplies with either 2 x 10 or[...]

  • Page 75

    Technical Reference Table 29. Main Power Connector Pin Signal Name Pin Signal Name 1 +3.3 V 13 +3.3 V 2 +3.3 V 14 -12 V 3 Ground 15 Ground 4 +5 V 16 PS-ON# (power supply remote on/off) 5 Ground 17 Ground 6 +5 V 18 Ground 7 Ground 19 Ground 8 PWRGD (Power Good) 20 No connect 9 +5 V (Standby) 21 +5 V 10 +12 V 22 +5 V 11 +12 V 23 +5 V 12 2x12 connecto[...]

  • Page 76

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Note the following considerations for the PC I Conventional bus connectors (for both Desktop Boards): • All of the PCI Conventional bus connectors are bus master capable. • SMBus signals are routed to PCI Conventional bus connector 2. This enables PCI Conventional bus add-in bo[...]

  • Page 77

    Technical Reference Purpl e OM17000 Hard Drive Activi ty LED Reset Switch +5 V DC N/C Power Switch 8 6 4 2 9 7 5 3 1 − + Single-colored Power LED − + Dual-colored Power LED + − Yellow Green Red Figure 23. Connection Diagram for Front Panel Connector 2.8.2.4.1 Hard Drive Activity LED Connector [Yellow] Pins 1 and 3 [Yellow] can be connected to[...]

  • Page 78

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification ✏ NOTE The colors listed in Table 34 and Table 35 are suggested colors only. Actual LED colors are product- or customer-specific. 2.8.2.4.4 Power Switch Connector [Red] Pins 6 and 8 [Red] can be connected to a front panel momentary-contact power switch. The switch must pull the S[...]

  • Page 79

    Technical Reference 2.8.2.6 Front Panel IEEE 1394a Connectors (Optional) Figure 25 is a connection diagram for the IEEE 1394a connectors. OM16107 8 6 4 2 7 5 3 1 Key (no pin) 10 TPA+ +12 V DC TPA − Ground TPB+ TPB − Ground Ground +12 V DC Figure 25. Connection Diagram for IEEE 1394a Connectors # INTEGRATOR’S NOTES • The IEEE 1394a connector[...]

  • Page 80

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.9 Jumper Block CAUTION Do not move the jumper with the power on. Al ways turn off the power and unplug the power cord from the computer before changing a jumper se tting. Otherwise, the board could be damaged. Figure 26 shows the location of the jumper block. The 3-pin jumper blo[...]

  • Page 81

    Technical Reference 2.10 Mechanical Considerations 2.10.1 D925XCV Form Factor The Desktop Board D925XCV is designed to fit into an ATX-form-factor chassis. Figure 27 illustrates the mechanical form factor for the De sktop Board D925XCV. Dimensions are given in inches [millimeters]. The outer dimensions ar e 10.20 inches by 9.60 inches [259.08 milli[...]

  • Page 82

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.10.2 D925XBC Form Factor The Desktop Board D925XBC is designed to fit into either a microATX or an ATX-form-factor chassis. Figure 28 illustrates the mechanical form factor for the Desktop Board D925XBC. Dimensions are given in inches [millimeters]. Th e outer dimensions are 9.60[...]

  • Page 83

    Technical Reference 2.10.3 I/O Shield The back panel I/O shield for the Desktop Bo ards D925XCV and D925XBC must meet specific dimension and material requirements. Systems ba sed on these Desktop Boards need the back panel I/O shield to pass certification testing. Figur e 29 shows the I/O shield for boards with the 8-channel (7.1) audio subsystem. [...]

  • Page 84

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification OM17165 Pictorial View 20. ± 0.254 TYP [0.787 ± 0.10] 162.3 REF [6.390] 159.2 ± 0.12 [6.268 ± 0.005] 1.6 ± 0.12 [0.063 ± 0.005] 1.55 REF [0.061] 12.00 [0.472] 7.012 [0.276] Ø 1.00 [0.039] 0.00 [0.00] 11.811 [0.465] 22.45 [0.884] 9.44 [0.372] 20.914 [0.832] 0.00 [0.00] 27.876[...]

  • Page 85

    Technical Reference 2.11 Electrical Considerations 2.11.1 DC Loading Table 37 lists the DC loading characteristics of the board. This data is based on a DC analysis of all active components within the board that impact its power delivery subsystems. The analysis does not include PCI add-in cards. Minimum values assume a light load placed on the boa[...]

  • Page 86

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.11.3 Fan Connector Current Capability CAUTION The processor fan must be connected to the processor fan connector, not to a chassis fan connector. Connecting the processor fan to a chassis fan connector may result in onboard component damage that will halt fan operation. Table 38 [...]

  • Page 87

    Technical Reference 2.12 Thermal Considerations CAUTION A chassis with a maximum internal ambient temperature of 38 o C at the processor fan inlet is a requirement. Use a processor heatsink that pr ovides omni-directional airflow (as shown in Figure 31) to maintain required airflow ac ross the processor voltage regulator area. OM16996 Figure 31. Pr[...]

  • Page 88

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification CAUTION Ensure that the ambient temperature does not exceed the Desktop Board’s maximum operating temperature. Failure to do so could cause co mponents to exceed their maximum case temperature and malfunction. For information about the maximum operating temperature, see the envir[...]

  • Page 89

    Technical Reference Table 39 provides maximum case temperatures for the Desktop Board D925XCV/D925XBC components that are sensitive to thermal changes. The operating temperature, current load, or operating frequency could affect case temperatures . Maximum case temperatures are important when considering proper airflow to c ool the Desktop Board D9[...]

  • Page 90

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.14 Environmental Table 40 lists the environmental specifications for the Desktop Boards D925XCV and D925XBC. Table 40. Desktop Board D925XCV/D925X BC Environmental Specifications Parameter Specification Temperature Non-Operating -40 ° C to +70 ° C Operating 0 ° C to +55 ° C S[...]

  • Page 91

    Technical Reference 2.15 Regulatory Compliance This section describes the Desktop Boards’ comp liance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 2.15.1 Safety Regulations Table 41 lists the safety regulations the Desk top Boards D925XCV and D925XBC comply with when correctly installed in a compatible h[...]

  • Page 92

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.15.2.1 FCC Compli ance Statement (USA) Product Type: D925XCV Desktop Board and D925XBC Desktop Board This device complies with Part 15 of the FCC Ru les. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device [...]

  • Page 93

    Technical Reference Suomi Tämä tuote noudattaa EU-direktiivin 89/336/EEC & 73/23/EEC määräyksiä. Français Ce produit est conforme aux exigences de la Directive Européenne 89/336/EEC & 73/23/EEC. Deutsch Dieses Produkt entspricht den Bestimmunge n der Europäischen Richtlinie 89/336/EEC & 73/23/EEC. Icelandic Þessi vara stenst r[...]

  • Page 94

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 2.15.5 Product Certification Markings (Board Level) Table 43 lists the board’s product certification markings. Table 43. Product Certification Markings Description Marking UL joint US/Canada Recognized Component mark. Includes adjacent UL file number for Intel Desktop Boards: E21[...]

  • Page 95

    3 Overview of BIOS Features What This Chapter Contains 3.1 Introduction .................................................................................................................. 9 5 3.2 BIOS Flash Memory Organization ............................................................................... 96 3.3 Resource Configuration ..............[...]

  • Page 96

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 44 lists the BIOS Setup program menu features. Table 44. BIOS Setup Program Menu Bar Maintenance Main Advanced S ecurity Power Boot Exit Clears passwords and displays processor information Displays processor and memory configuration Configures advanced features available thro[...]

  • Page 97

    Overview of BIOS Features to PIO Mode 3 or 4, depending on the capability of the drive. You can override the auto- configuration options by specifying manual c onfiguration in the BIOS Setup program. To use ATA-66/100 features the following items are required: • An ATA-66/100 peripheral device • An ATA-66/100 compatible cable • ATA-66/100 ope[...]

  • Page 98

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 5. The operating system loads. While the opera ting system is loading, USB keyboards and mice are recognized and may be used to configure the operating system. (Keyboards and mice are not recognized during this period if Legacy USB support was set to Disabled in the BIOS Setup prog[...]

  • Page 99

    Overview of BIOS Features 3.7 Boot Options In the BIOS Setup program, the user can choose to boot from a diskette drive, hard drives, CD-ROM, or the network. The default setting is for the diskette drive to be the first boot device, the hard drive second, and the ATAPI CD-ROM third. The fourth device is disabled. 3.7.1 CD-ROM Boot Booting from CD-R[...]

  • Page 100

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 3.8 Fast Booting Systems with Intel ® Rapid BIOS Boot These factors affect system boot speed: • Selecting and configuri ng peripherals properly • Using an optimized BIOS, such as the Intel ® Rapid BIOS 3.8.1 Peripheral Selection and Configuration The following techniques help[...]

  • Page 101

    Overview of BIOS Features 3.9 BIOS Security Features The BIOS includes security features that restri ct 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 unre[...]

  • Page 102

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 102[...]

  • Page 103

    4 Err or Messa ges and Beep Codes What This Chapter Contains 4.1 BIOS Error Messages ................................................................................................ 103 4.2 Port 80h POST Codes ............................................................................................... 105 4.3 Bus Initialization Checkpoints .....[...]

  • Page 104

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 48. BIOS Error Messages (continued) Error Message Explanation Update OK! NVRAM was invalid and has been updated. Updated Failed NVRAM was invalid but was unable to be updated. Keyboard Error Error in the keyboard connection. Make sure keyboard is connected properly. KB/Interf[...]

  • Page 105

    Error Messages and Beep Codes 4.2 Port 80h POST Codes During the POST, the BIOS generates diagnostic progress codes (POST-codes) to I/O port 80h. If the POST fails, execution stops and the last POST code generated is left at port 80h. This code is useful for determining the point where an error occurred. Displaying the POST-codes requires a PCI bus[...]

  • Page 106

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 51. Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation 03 NMI is Disabled. To check soft reset/power-on. 05 BIOS stack set. Going to disable cache if any. 06 POST code to be uncompressed. 07 CPU init and CPU data area init to be done. 08 CMOS chec[...]

  • Page 107

    Error Messages and Beep Codes Table 51. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation 40 To prepare the descriptor tables. 42 To enter in virtual mode for memory test. 43 To enable interrupts for diagnostics mode. 44 To initialize data to check memory wrap around at 0:0. 45 Data initialized. Going to ch[...]

  • Page 108

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 51. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation 84 Lock-key checking over. To check fo r memory size mismatch with CMOS. 85 Memory size check done. To display soft error and check for password or bypass setup. 86 Password checke[...]

  • Page 109

    Error Messages and Beep Codes Table 51. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation AE Uncompress SMBIOS module and init SMBI OS code and form the runtime SMBIOS image in shadow. B1 Going to copy any code to specific area. 00 Copying of code to specific area done. Going to give control t o INT-19 boot[...]

  • Page 110

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification Table 54 describes the lower nibble of the high byte and indicates the bus on which the routines are being executed. Table 54. Lower Nibble High Byte Functions Value Description 0 Generic DIM (Device Initialization Manager) 1 On-board System devices 2 ISA devices 3 EISA devices 4 I[...]

  • Page 111

    Error Messages and Beep Codes If POST completes normally, the BIOS issues one short beep before passing control to the operating system. Table 55. Beep Codes Beep Description 1 CPU error 3 Memory error 6 System failure 7 System failure 8 Video error 111[...]

  • Page 112

    Intel Desktop Board D925XCV/D925XBC Technical Product Specification 112[...]