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®
Intel Desktop Board
D925XCV/D925XBC
Technical Product Specification
June 2004
Order Number: C68597-001
®
The Intel Desktop Board D925XCV/D925XBC may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current
characterized errata are documented in the Intel Desktop Board D925XCV/D925XBC Specification Update.
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Revision History Revision Revision History Date ® -001 First release of the Intel Desktop Board D925XCV/D925XBC Technical June 2004 Product Specification ® This product specification applies to only standard Intel Desktop Boards D925XCV and D925XBC with BIOS identifier CV92510A.86A. Changes to this specification will be published in the Intel Desktop Board D925XCV/D925XBC Specification Update before being incorporated into a revision of this document. INFORMATION IN THIS DOCUMENT IS
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Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, ® power and environmental requirements, 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, technical information about the Desktop Boards D925XCV and D925XBC and their components to the vendors, system integrators, and other engineers and te
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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 relative coordinates of its location on the Desktop Boards D925XCV and D925XBC, and X is the instance of the particular part at that general loc
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Contents 1 Product Description 1.1 PCI Bus Terminology Change......................................................................................11 1.2 Board Differences ........................................................................................................11 1.3 Overview ......................................................................................................................12 1.3.1 Feature Summary...........................................................
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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.....................................................................47 1.15.3 Security Precautions...........................................................
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Contents 3 Overview of BIOS Features 3.1 Introduction ..................................................................................................................95 3.2 BIOS Flash Memory Organization ...............................................................................96 3.3 Resource Configuration ...............................................................................................96 3.3.1 PCI Autoconfiguration.......................................................
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Intel Desktop Board D925XCV/D925XBC Technical Product Specification Figures 1. Desktop Board D925XCV Components .......................................................................14 2. Desktop Board D925XBC Components .......................................................................16 3. Block Diagram..............................................................................................................18 4. Memory Channel and DIMM Configuration..............................
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Contents 14. PCI Configuration Space Map......................................................................................59 15. Interrupts......................................................................................................................60 16. PCI Interrupt Routing Map ...........................................................................................62 17. Back Panel Connectors Shown in Figure 19................................................................
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Intel Desktop Board D925XCV/D925XBC Technical Product Specification x
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1 Product Description What This Chapter Contains 1.1 PCI Bus Terminology Change......................................................................................11 1.2 Board Differences ........................................................................................................11 1.3 Overview ......................................................................................................................12 1.4 Online Support ...........................................
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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 Boards, illustrations of both boards are provided. 1.3 Overview 1.3.1 Feature Summary Table 2 summarizes the major features of the Desktop Boards D925XCV and D925XBC. Table 2. Feature Summary Form Factor • D925XCV: ATX (10.20 inches by 9.60 inches [259.08 millimeters by
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Product Description Table 2. Feature Summary (continued) LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Marvell* Yukon* 88E8050 PCI Express Gigabit Ethernet Controller Expansion • D925XCV: Four PCI Conventional bus add-in card connectors (SMBus routed Capabilities to PCI Conventional bus connector 2), two PCI Express x1 bus add-in card connectors, and one PCI Express x16 bus add-in card connector • D925XBC: Two PCI Conventional bus add-in card connectors (SMBus rout
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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. A B C D E F G H I J MM K L M LL KK JJ M II O P HH GG Q FF EE DD BB Z X CC AA Y W V U T S R OM16676 Figure 1. Desktop Board D925XCV Components Table 4 lists the D925XCV components identified in Figure 1. 14
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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 Controller H PCI Express x16 bus add-in card connector I Rear chassis fan connector J Back panel connectors K Alternate power
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Intel Desktop Board D925XCV/D925XBC Technical Product Specification Figure 2 shows the location of the major components on the Desktop Board D925XBC. A B C D E F G H I HH GG FF J EE DD K CC L M BB N AA Z Y W U X V T S R Q P O OM16686 Figure 2. Desktop Board D925XBC Components Table 5 lists the D925XCV components identified in Figure 2. 16
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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 connectors H Alternate power connector I +12V power connector (ATX12V) J LGA775 processor socket K Processor fan connector L I
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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. Gigabit Ethernet LAN PCI Express x1 Interface Controller Connector PCI Express x1 Slot 1 Back Panel/Front Panel USB D925XCV USB Ports PCI Express x1 Slot 2 only Serial Ports LPC Bus Parallel Port Parallel ATA Parallel ATA I/O PS/2 Mouse IDE Connector IDE Interface Controller PS/2 Keyboard LGA775 System Bus Diskette Drive Processor S
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Product Description 1.4 Online Support To find information about… Visit this World Wide Web site: Intel Desktop Boards D925XCV and http://www.intel.com/design/motherbd D925XBC under “Desktop Board Products” or “Desktop Board Support” http://support.intel.com/support/motherboards/desktop Available configurations for the Desktop http://developer.intel.com/design/motherbd/cv/cv_available.htm Board D925XCV Available configurations for the Desktop http://developer.intel.com/design/motherbd/
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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 organization are not supported. • 4 GB maximum total system memory. Refer to Section 2.2.1 on page 55 for information on the total amount of addressable memory. • Minimum total system mem
