Desktop Board D945GCCR 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 D945GCCR Specification Update.
Page 1
Order Number: D80699-001US ® The Intel Desktop Board D945GCCR 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 D945GCCR Specification Update.
Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order.
Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for the Intel ® Desktop Board D945GCCR. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Board D945GCCR and its components to the vendors, system integrators, and other engineers and technicians who need this level of information.
Page 4
Intel Desktop Board D945GCCR 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 Board D945GCCR, and X is the instance of the particular part at that general location.
Intel Desktop Board D945GCCR Technical Product Specification Overview 1.1.1 Feature Summary Table 1 summarizes the major features of the board. Table 1. Feature Summary Form Factor microATX (9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters]) Processor Support for the following: ®...
Product Description Table 1. Feature Summary (continued) • Support for PCI Local Bus Specification Revision 2.3 Instantly Available PC Technology • Support for PCI Express Revision 1.0a • Suspend to RAM support • Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports •...
DIMM socket DIMM socket Chassis intrusion header Main Power connector Diskette drive connector Parallel ATE IDE connector Intel 82801GB I/O Controller Hub (ICH7) Front chassis fan header Serial ATA connectors [4] Front panel header Speaker Front panel USB headers [2]...
Intel Desktop Board D945GCCR Technical Product Specification 1.1.3 Block Diagram Figure 2 is a block diagram of the major functional areas. Figure 2. Block Diagram...
The board is designed to support the following processors: • Intel Core 2 Duo processor in an LGA775 socket with a 800 MHz system bus • Intel Pentium D processor in an LGA775 processor socket with an 800 or 533 MHz system bus •...
Intel Desktop Board D945GCCR Technical Product Specification System Memory The board has two DIMM sockets and supports the following memory features: • 1.8 V (only) DDR2 SDRAM DIMMs with gold-plated contacts • Unbuffered, single-sided or double-sided DIMMs with the following restriction: Double-sided DIMMS with x16 organization are not supported.
Product Description NOTE Regardless of the DIMM type used, the memory frequency will either be equal to or less than the processor system bus frequency. For example, if DDR2 400 memory is used with a 533 MHz system bus frequency processor, the memory will operate at 400 MHz.
Intel Desktop Board D945GCCR Technical Product Specification 1.4.1 Memory Configurations The Intel 82945GC GMCH supports two types 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.
Product Description 1.4.1.1 Dual Channel (Interleaved) Mode Configurations Figure 4 shows a dual channel configuration using two DIMMs. In this example, the DIMM sockets are populated with identical DIMMs. Figure 4. Dual Channel (Interleaved) Mode Configuration with Two DIMMs 1.4.1.2 Single Channel (Asymmetric) Mode Configurations NOTE Dual channel (Interleaved) mode configurations provide the highest memory...
Intel Desktop Board D945GCCR Technical Product Specification Figure 6 shows a single channel configuration using two DIMMs. In this example, the capacity of the DIMM in Channel A does not equal the capacity of the DIMM in Channel B. Figure 6. Single Channel (Asymmetric) Mode Configuration with Two DIMMs...
1.5.1 Intel 945GC Graphics Subsystem The Intel 945GC chipset contains two separate, mutually exclusive graphics options. Either the GMA950 graphics controller (contained within the 82945GC GMCH) is used, or a PCI Express x16 add-in card can be used. When a PCI Express x16 add-in card is installed, the GMA950 graphics controller is disabled.
Page 22
Intel Desktop Board D945GCCR Technical Product Specification • Video ⎯ Hardware motion compensation for MPEG2 ⎯ Software DVD at 30 fps full screen • Display ⎯ Integrated 24-bit 400 MHz RAMDAC ⎯ Up to 2048 x 1536 at 75 Hz refresh (QXGA) ⎯...
VGA output • HDTV output 1.5.1.4 Configuration Modes A list of supported modes for the Intel GMA950 graphics controller is available as a downloadable document. For information about Refer to Supported video modes for the board Section 1.2, page 15 1.5.2...
Intel Desktop Board D945GCCR Technical Product Specification 1.5.3 IDE Support The board provides five IDE interface connectors: • One parallel ATA IDE connector that supports two devices • Four serial ATA IDE connectors that support one device per connector 1.5.3.1 Parallel ATE IDE Interface The ICH7’s Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE...
Product Description NOTE Many Serial ATA drives use new low-voltage power connectors and require adaptors or power supplies equipped with low-voltage power connectors. For more information, see: http://www.serialata.org/ For information about Refer to The location of the Serial ATA IDE connectors Figure 13, page 50 1.5.4 Real-Time Clock, CMOS SRAM, and Battery...
Intel Desktop Board D945GCCR Technical Product Specification Legacy I/O Controller The legacy 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 •...
Product Description Audio Subsystem The board supports the Intel High Definition audio subsystem based on the Realtek ALC883 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.
Intel Desktop Board D945GCCR Technical Product Specification 1.8.3 6-Channel (5.1) Audio Subsystem The 6-channel (5.1) audio subsystem includes the following: • Intel 82801GB I/O Controller Hub (ICH7) • Realtek ALC883 audio codec • Microphone input that supports a single dynamic, condenser, or electret microphone The back panel audio connectors are configurable through the audio device drivers.
PCI Conventional bus power management ⎯ Supports ACPI technology ⎯ Supports LAN wake capabilities 1.9.1 LAN Subsystem Software LAN software and drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining LAN software and drivers Section 1.2, page 15 ®...
Intel Desktop Board D945GCCR Technical Product Specification 1.9.2.1 RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (shown in Figure 8). Figure 8. LAN Connector LED Locations Table 5 describes the LED states when the board is powered up and the 10/100 Mbits/sec LAN subsystem is operating.
When the chassis cover is removed, the mechanical switch is in the closed position. 1.10.3 Fan Monitoring Fan monitoring can be implemented using Intel Desktop Utilities or third-party ® software. The level of monitoring and control is dependent on the I/O controller used with the board.
Intel Desktop Board D945GCCR Technical Product Specification 1.10.4 Thermal Monitoring Figure 9 shows the location of the sensors and fan headers. Item Description Processor fan Rear chassis fan Thermal diode, located on processor die Remote ambient temperature sensor Front chassis fan...
Product Description 1.11 Power Management Power management is implemented at several levels, including: • Software support through Advanced Configuration and Power Interface (ACPI) • Hardware support: ⎯ Power connector ⎯ Fan headers ⎯ LAN wake capabilities ⎯ Instantly Available PC technology ⎯...
Intel Desktop Board D945GCCR Technical Product Specification 1.11.1.1 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.
Product Description 1.11.1.3 Wake-up Devices and Events Table 8 lists the devices or specific events that can wake the computer from specific states. Table 8. Wake-up Devices and Events These devices/events can wake up the computer… …from this state (Note) S1, S3, S4, S5 Modem (back panel Serial Port A) S1, S3...
Intel Desktop Board D945GCCR Technical Product Specification Resume on Ring enables telephony devices to access the 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 operating system that provides full ACPI support.
Product Description 1.11.2.3 LAN Wake Capabilities CAUTION For LAN wake capabilities, the +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing LAN wake capabilities can damage the power supply. LAN wake capabilities enable remote wake-up of the computer through a network.
Intel Desktop Board D945GCCR Technical Product Specification 1.11.2.6 Wake from USB USB bus activity wakes the computer from ACPI S1 or S3 states. NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 1.11.2.7 Wake from PS/2 Devices PS/2 device activity wakes the computer from an ACPI S1 or S3 state.
Product Description 1.11.2.10 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the computer appears to be off. Figure 10 shows the location of the standby power indicator LED. CAUTION If AC power has been switched off and the standby power indicator is still lit, disconnect the power cord before installing or removing any devices connected to the...
Intel Desktop Board D945GCCR Technical Product Specification The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. Figure 11 shows a schematic of the system memory map. All installed system memory can be used when there is no overlap of system addresses.
Table 12. PCI Configuration Space Map Device Function Number (hex) Number (hex) Number (hex) Description Memory controller of Intel 82945GC component (Note 1) PCI Express x16 graphics port Integrated graphics controller High Definition Audio Controller PCI Express port 1 USB UHCI controller 1...
Intel Desktop Board D945GCCR Technical Product Specification Interrupts The interrupts can be routed through either the Programmable Interrupt Controller (PIC) or the Advanced Programmable Interrupt Controller (APIC) portion of the ICH7 component. The PIC is supported in Windows 98 SE and Windows ME and uses the first 16 interrupts.
Technical Reference 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 devices. The PCI Conventional specification describes how interrupts can be shared between devices attached to the PCI Conventional bus.
Intel Desktop Board D945GCCR Technical Product Specification Connectors and Headers CAUTION Only the following connectors have overcurrent protection: back panel USB, front panel USB, and PS/2. The other internal connectors/headers are not overcurrent protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals.
Technical Reference 2.7.1 Back Panel Connectors Figure 12 shows the location of the back panel connectors. Item Description PS/2 mouse port PS/2 keyboard port Parallel port Serial port VGA port USB ports [4] Audio line in Mic in Audio line out Figure 12.
Intel Desktop Board D945GCCR Technical Product Specification 2.7.2 Component-side Connectors and Headers Figure 13 shows the locations of the component-side connectors and headers. Figure 13. Component-side Connectors and Headers...
Intel Desktop Board D945GCCR Technical Product Specification Table 16. Front Panel Audio Header Signal Name Signal Name Port E [Port 1] Left Channel Ground Port E [Port 1] Right Channel Presence# (dongle present) Port F [Port 2] Right Channel Port E [Port 1] Sense return...
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 2 x 12 main power cables. When...
⎯ The SMBus data line is connected to pin A41. NOTE The PCI Express x16 connector is configured to support only a PCI Express x1 link when the Intel GMA950 graphics controller is enabled. 2.7.2.3 Auxiliary Front Panel Power/Sleep LED Header Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header.
Technical Reference 2.7.2.4 Front Panel Header This section describes the functions of the front panel header. Table 24 lists the signal names of the front panel header. Figure 14 is a connection diagram for the front panel header. Table 24. Front Panel Header Signal Description Signal...
Intel Desktop Board D945GCCR Technical Product Specification 2.7.2.4.1 Hard Drive Activity LED Header [Yellow] Pins 1 and 3 [Yellow] can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires one of the following: •...
Technical Reference 2.7.2.5 Front Panel USB Headers Figure 15 is a connection diagram for the front panel USB headers. INTEGRATOR’S NOTES • The +5 V DC power on the USB headers is fused. • Pins 1, 3, 5, and 7 comprise one USB port. •...
Intel Desktop Board D945GCCR Technical Product Specification Jumper Block CAUTION Do not move the jumper with the power on. Always turn off the power and unplug the power cord from the computer before changing a jumper setting. Otherwise, the board could be damaged.
Technical Reference Table 27. BIOS Setup Configuration Jumper Settings Function/Mode Jumper Setting Configuration Normal The BIOS uses current configuration information and passwords for booting. 3 2 1 Configure After the POST runs, Setup runs automatically. The maintenance menu is displayed. 3 2 1 Recovery The BIOS attempts to recover the BIOS configuration.
Intel Desktop Board D945GCCR Technical Product Specification Mechanical Considerations 2.9.1 Form Factor The board is designed to fit into an ATX- or microATX-form-factor chassis. Figure 17 illustrates the mechanical form factor of the board. Dimensions are given in inches [millimeters]. The outer dimensions are 9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters].
Additional design considerations for I/O shields relative to chassis requirements are described in the ATX specification. NOTE The I/O shield drawing is for reference only. I/O shields compliant with the ATX chassis specification are available from Intel. Figure 18. I/O Shield Dimensions...
Intel Desktop Board D945GCCR Technical Product Specification 2.10 Electrical Considerations 2.10.1 DC Loading Table 28 lists the DC loading characteristics of the boards. This data is based on a DC analysis of all active components within the board that impact its power delivery subsystems.
Technical Reference 2.10.3 Fan Header Current Capability CAUTION The processor fan must be connected to the processor fan header, not to a chassis fan header. Connecting the processor fan to a chassis fan header may result in onboard component damage that will halt fan operation. Table 29 lists the current capability of the fan headers.
Failure to ensure appropriate airflow may result in reduced performance of both the processor and/or voltage regulator or, in some instances, damage to the board. For a list of chassis that have been tested with Intel desktop boards please refer to the following website: http://developer.intel.com/design/motherbd/cooling.htm...
Technical Reference Figure 19 shows the locations of the localized high temperature zones. Item Description Processor voltage regulator area Processor Intel 82945GC GMCH Intel 82801GB ICH7 Figure 19. Localized High Temperature Zones...
Intel Desktop Board D945GCCR Technical Product Specification Table 30 provides maximum case temperatures for the 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 cool the board.
Technical Reference 2.13 Environmental Table 31 lists the environmental specifications for the board. Table 31. Environmental Specifications Parameter Specification Temperature Non-Operating -40 °C to +70 °C Operating 0 °C to +55 °C Shock Unpackaged 50 g trapezoidal waveform Velocity change of 170 inches/second² Packaged Half sine 2 millisecond Product Weight (pounds)
3.9 BIOS Security Features ..............76 Introduction The boards use an Intel BIOS that is stored in the Serial Peripheral Interface Flash Memory (SPI Flash) and can be updated using a disk-based program. The SPI Flash contains the BIOS Setup program, POST, the PCI auto-configuration utility, and Plug and Play support.
Intel Desktop Board D945GCCR Technical Product Specification Table 32 lists the BIOS Setup program menu features. Table 32. BIOS Setup Program Menu Bar Maintenance Main Advanced Security Power Boot Exit Clears Displays Configures Sets Configures Selects boot Saves or passwords and...
Overview of BIOS Features 3.3.2 PCI IDE Support If you select Auto in the BIOS Setup program, the BIOS automatically sets up the PCI IDE connector with independent I/O channel support. The IDE interface supports hard drives up to ATA-66/100 and recognizes any ATAPI compliant devices, including CD-ROM drives, tape drives, and Ultra DMA drives.
The Integrator’s Toolkit that is available from Intel can be used to create a custom splash screen. NOTE If you add a custom splash screen, it will share space with the Intel branded logo. For information about Refer to The Intel World Wide Web site Section 1.2, page 15...
Overview of BIOS Features Legacy USB Support Legacy USB support enables USB devices to be used even when the operating system’s USB drivers are not yet available. Legacy USB support is used to access the BIOS Setup program, and to install an operating system that supports USB. Legacy USB support operates as follows: 1.
Intel Desktop Board D945GCCR Technical Product Specification 3.7.3 Booting Without Attached Devices For use in embedded applications, the BIOS has been designed so that after passing the POST, the operating system loader is invoked even if the following devices are not present: •...
It is possible to optimize the boot process to the point where the system boots so quickly that the Intel logo screen (or a custom logo splash screen) will not be seen. 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.
Intel Desktop Board D945GCCR Technical Product Specification 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: •...
Error Messages and Beep Codes What This Chapter Contains 4.1 Speaker ..................77 4.2 BIOS Beep Codes ................77 4.3 BIOS Error Messages ............... 77 4.4 Port 80h POST Codes ............... 78 Speaker The board-mounted speaker provides audible error code (beep code) information during POST.
Intel Desktop Board D945GCCR Technical Product Specification 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.
Error Messages and Beep Codes Table 39. Port 80h POST Codes POST Code Description of POST Operation Host Processor Power-on initialization of the host processor (Boot Strap Processor) Host processor Cache initialization (including APs) Starting Application processor initialization SMM initialization Chipset Initializing a chipset component Memory...
Page 80
Intel Desktop Board D945GCCR Technical Product Specification Table 39. Port 80h POST Codes (continued) POST Code Description of POST Operation Keyboard (PS2 or USB) Resetting keyboard Disabling keyboard Detecting presence of keyboard Enabling keyboard Clearing keyboard input buffer Instructing keyboard controller to run Self Test (PS2 only)
Page 81
Error Messages and Beep Codes Table 39. Port 80h POST Codes (continued) POST Code Description of POST Operation DXE Drivers Waiting for user input Checking password Entering BIOS setup Calling Legacy Option ROMs Runtime Phase/EFI OS Boot Entering Sleep state Exiting Sleep state EFI boot service ExitBootServices ( ) has been called EFI runtime service SetVirtualAddressMap ( ) has been called...
Regulatory Compliance and Battery Disposal Information What This Chapter Contains 5.1 Regulatory Compliance..............83 5.2 Battery Disposal Information............. 91 Regulatory Compliance This section contains the following regulatory compliance information for Desktop Board D945GCCR: • Safety regulations • European Union Declaration of Conformity statement •...
European Union Declaration of Conformity Statement ® We, Intel Corporation, declare under our sole responsibility that the product Intel Desktop Board D945GCCR is in conformity with all applicable essential requirements necessary for CE marking, following the provisions of the European Council Directive 89/336/EEC (EMC Directive) and Council Directive 73/23/EEC (Safety/Low Voltage Directive).
5.1.3.2 Recycling Considerations As part of its commitment to environmental responsibility, Intel has implemented the Intel Product Recycling Program to allow retail consumers of Intel’s branded products to return used products to select locations for proper recycling.
Page 86
Français Dans le cadre de son engagement pour la protection de l'environnement, Intel a mis en œuvre le programme Intel Product Recycling Program (Programme de recyclage des produits Intel) pour permettre aux consommateurs de produits Intel de recycler les produits usés en les retournant à...
Page 87
Regulatory Compliance and Battery Disposal Information Portuguese Como parte deste compromisso com o respeito ao ambiente, a Intel implementou o Programa de Reciclagem de Produtos para que os consumidores finais possam enviar produtos Intel usados para locais selecionados, onde esses produtos são reciclados de maneira adequada.
Intel Desktop Board D945GCCR Technical Product Specification 5.1.3.3 Lead Free Desktop Board This desktop board is lead free although certain discrete components used on the board contain a small amount of lead which is necessary for component performance and/or reliability. This desktop board is referred to as “Lead-free second level interconnect.”...
Regulatory Compliance and Battery Disposal Information 5.1.4 EMC Regulations Desktop Board D945GCCR complies with the EMC regulations stated in Table 43 when correctly installed in a compatible host system. Table 43. EMC Regulations Regulation Title FCC Class B Title 47 of the Code of Federal Regulations, Parts 2 and 15, Subpart B, Radio Frequency Devices.
Intel Desktop Board D945GCCR Technical Product Specification Korean Class B statement translation: this is household equipment that is certified to comply with EMC requirements. You may use this equipment in residential environments and other non-residential environments. 5.1.5 Product Certification Markings (Board Level) Desktop Board D945GCCR has the product certification markings shown in Table 44: Table 44.
Regulatory Compliance and Battery Disposal Information Battery Disposal Information CAUTION Risk of explosion if the battery is replaced with an incorrect type. Batteries should be recycled where possible. Disposal of used batteries must be in accordance with local environmental regulations. PRECAUTION Risque d'explosion si la pile usagée est remplacée par une pile de type incorrect.
Page 92
Intel Desktop Board D945GCCR Technical Product Specification WAARSCHUWING Er bestaat ontploffingsgevaar als de batterij wordt vervangen door een onjuist type batterij. Batterijen moeten zoveel mogelijk worden gerecycled. Houd u bij het weggooien van gebruikte batterijen aan de plaatselijke milieuwetgeving. ATENÇÃO Haverá...
Page 93
Regulatory Compliance and Battery Disposal Information PRECAUŢIE Risc de explozie, dacă bateria este înlocuită cu un tip de baterie necorespunzător. Bateriile trebuie reciclate, dacă este posibil. Depozitarea bateriilor uzate trebuie să respecte reglementările locale privind protecţia mediului. ВНИМАНИЕ При использовании батареи несоответствующего типа существует риск ее взрыва. Батареи...