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Intel
D915PLWD
Technical Product Specification
®
The Intel
Desktop Board D915PLWD 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 D915PLWD Specification Update.
®
Desktop Board
June 2005
Order Number: D23930-001US
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Table of Contents
Related Manuals for Intel BOXD915PLWDL - Desktop Board D915PLWDL
Summary of Contents for Intel BOXD915PLWDL - Desktop Board D915PLWDL
- Page 1 Order Number: D23930-001US ® The Intel Desktop Board D915PLWD 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 D915PLWD Specification Update.
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Page 2: Revision History
Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be obtained from: Intel Corporation P.O. -
Page 3: Intended Audience
Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, ® power and environmental requirements, and the BIOS for the Intel Desktop Board D915PLWD. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Board D915PLWD and its components to the vendors, system integrators, and other engineers and technicians who need this level of information. - Page 4 Intel Desktop Board D915PLWD Technical Product Specification 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 board, and X is the instance of the particular part at that general location.
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Page 5: Table Of Contents
Block Diagram ..................... 14 Online Support ......................15 Processor........................15 System Memory ......................16 1.4.1 Memory Configurations................17 ® Intel 915PL Chipset....................20 1.5.1 USB ......................20 1.5.2 IDE Support ....................20 1.5.3 Real-Time Clock, CMOS SRAM, and Battery ..........22 PCI Express* Connectors .................. - Page 6 Intel Desktop Board D915PLWD Technical Product Specification 2.7.3 Front Panel USB Connectors ................ 51 Jumper Block ....................... 52 Mechanical Considerations ..................53 2.9.1 Form Factor ....................53 2.9.2 I/O Shield....................... 54 2.10 Electrical Considerations....................55 2.10.1 DC Loading....................55 2.10.2 Add-in Board Considerations.................
- Page 7 Contents Figures Board Components ...................... 12 Block Diagram......................14 Memory Channel and DIMM Configuration ..............17 Dual Channel (Interleaved) Mode Configuration with Two DIMMs ......18 Single Channel (Asymmetric) Mode Configuration with One DIMM......19 Single Channel (Asymmetric) Mode Configuration with Two DIMMs......19 Front/Back Panel Audio Connector Options for High Definition Audio Subsystem..
- Page 8 Intel Desktop Board D915PLWD Technical Product Specification States for a One-Color Power LED ................50 States for a Two-Color Power LED ................50 BIOS Setup Configuration Jumper Settings..............52 DC Loading Characteristics ..................55 Fan Connector Current Capability................56 Thermal Considerations for Components ..............59 Environmental Specifications ..................
- Page 9 What This Chapter Contains Overview ........................10 Online Support ......................15 Processor ........................15 System Memory ......................16 ® Intel 915PL Chipset....................20 PCI Express Connectors....................22 Legacy I/O Controller ....................23 Audio Subsystem ......................24 LAN Subsystem ......................26 1.10 Hardware Management Subsystem................
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Page 10: Overview
LAN Support 10/100 Mbits/sec LAN subsystem using the Intel 82562GZ Platform LAN Connect (PLC) device • Intel/AMI BIOS (resident in the 4 Mbit FWH) BIOS • Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS continued... - Page 11 Product Description Table 1. Feature Summary (continued) • Four PCI Conventional* bus connectors Expansion Capabilities • Two PCI Express x1 bus add-in card connectors • One PCI Express x16 bus add-in card connector • Support for PCI Local Bus Specification Revision 2.2 Instantly Available PC Technology •...
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Page 12: Board Layout
Intel Desktop Board D915PLWD Technical Product Specification 1.1.2 Board Layout Figure 1 shows the location of the major components. E F G OM17971 Figure 1. Board Components Table 2 lists the components identified in Figure 1. -
Page 13: Board Components Shown In Figure 1
4 Mbit Firmware Hub (FWH) Front chassis fan connector Serial ATA connectors [4] Auxiliary front panel power LED connector Front panel connector Front panel USB connectors [2] Intel 82801FB I/O Controller Hub (ICH6) PCI Conventional bus add-in card connectors [2]... -
Page 14: Block Diagram
Intel Desktop Board D915PLWD Technical Product Specification 1.1.3 Block Diagram Figure 2 is a block diagram of the major functional areas of the board. PCI Express x1 Interface Back Panel/ PCI Express x1 Slot 1 Front Panel USB Ports PCI Express x1 Slot 2... -
Page 15: Online Support
1.3 Processor The board is designed to support Intel Pentium 4 processors in an LGA775 processor socket with an 800 or 533 MHz system bus. See the Intel web site listed below for the most up-to-date list of supported processors. -
Page 16: System Memory
Intel Desktop Board D915PLWD Technical Product Specification 1.4 System Memory The board has two DIMM sockets and support the following memory features: • 2.5 V (only) DDR 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. -
Page 17: Memory Configurations
Product Description 1.4.1 Memory Configurations The Intel 82915PL MCH 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. -
Page 18: Dual Channel (Interleaved) Mode Configuration With Two Dimms
Intel Desktop Board D915PLWD Technical Product Specification 1.4.1.1 Dual Channel (Interleaved) Mode Configuration Figure 4 shows a dual channel configuration using two DIMMs. In this example, the DIMM sockets are populated with identical DIMMs. Channel A, DIMM 0 1 GB... -
Page 19: Single Channel (Asymmetric) Mode Configuration With One Dimm
Product Description 1.4.1.2 Single Channel (Asymmetric) Mode Configurations NOTE Dual channel (Interleaved) mode configurations provide the highest memory throughput. Figure 5 shows a single channel configuration using one DIMM. In this example, only Channel A is populated. Channel B is not populated. Channel A, DIMM 0 256 MB Channel B, DIMM 0... -
Page 20: Intel ® 915Pl Chipset
1.5 Intel ® 915PL Chipset The Intel 915PL chipset consists of the following devices: • Intel 82915PL Memory Controller Hub (MCH) with Direct Media Interface (DMI) interconnect • Intel 82801FB I/O Controller Hub (ICH6) with DMI interconnect • Firmware Hub (FWH) The MCH is a centralized controller for the system bus, the memory bus, the PCI Express bus, and the DMI interconnect. - Page 21 Product Description 1.5.2.1 Parallel ATA IDE Interface The ICH6’s Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface. The Parallel ATA IDE interface supports the following modes: • Programmed I/O (PIO): processor controls data transfer. • 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/sec. •...
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Page 22: Real-Time Clock, Cmos Sram, And Battery
Intel Desktop Board D915PLWD Technical Product Specification 1.5.3 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 the power supply extends the life of the battery. -
Page 23: Legacy I/O Controller
Product Description 1.7 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 •... -
Page 24: Audio Subsystem
For the front panel jack sensing and automatic retasking feature to function, a front panel daughter card that is designed for Intel High Definition Audio must be used. Otherwise, an AC ’97 style audio front panel connector will be assumed and the Line Out and Mic In functions will be permanent. -
Page 25: Intel ® High Definition Audio Subsystem
Product Description 1.8.3 Intel ® High Definition Audio Subsystem The Intel High Definition Audio subsystem includes the following: • Intel 82801FB I/O Controller Hub (ICH6) • Realtek ALC860VU audio codec • Microphone input that supports a single dynamic, condenser, or electret microphone The front and back audio connectors are configurable through the audio device drivers. -
Page 26: Lan Subsystem
PCI Conventional bus power management ⎯ Supports ACPI technology ⎯ Supports LAN wake capabilities 1.9.1 10/100 Mbits/sec LAN Subsystem The 10/100 Mbits/sec LAN subsystem includes the ICH6, the Intel 82562GZ PLC, and an RJ-45 LAN connector with integrated status LEDs. ® 1.9.1.1... -
Page 27: Lan Subsystem Software
Yellow 10 Mbits/sec data rate is selected. 100 Mbits/sec data rate is selected. 1.9.2 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 1.10 Hardware Management Subsystem... -
Page 28: Thermal Monitoring
Intel Desktop Board D915PLWD Technical Product Specification 1.10.2 Thermal Monitoring Figure 10 shows the location of the sensors and fan connectors. OM17977 Item Description Remote ambient temperature sensor Thermal diode, located on processor die Ambient temperature sensor, internal to hardware monitoring and fan control ASIC... -
Page 29: Fan Monitoring
Product Description 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 hardware monitoring ASIC used with the Desktop Board. For information about Refer to The functions of the fan connectors Section 1.11.2.2, page 33... -
Page 30: Effects Of Pressing The Power Switch
Intel Desktop Board D915PLWD Technical Product Specification 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... -
Page 31: Power States And Targeted System Power
Product Description Table 7. Power States and Targeted System Power Processor Targeted System (Note 1) Global States Sleeping States States Device States Power G0 – working S0 – working C0 – working D0 – working state. Full power > 30 W state G1 –... -
Page 32: Hardware Support
Intel Desktop Board D915PLWD Technical Product Specification 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…... -
Page 33: Power Connector
Product Description 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. - Page 34 Intel Desktop Board D915PLWD Technical Product Specification Magic Packet* frame, the LAN subsystem asserts a wake-up signal that powers up the computer. Depending on the LAN implementation, the board supports LAN wake capabilities with ACPI in the following ways: •...
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Page 35: Location Of The Standby Power Indicator Led
Product Description 1.11.2.8 PME# Signal Wake-up Support When the PME# signal on the PCI Conventional bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state (with Wake on PME enabled in BIOS). 1.11.2.9 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. - Page 36 Intel Desktop Board D915PLWD Technical Product Specification...
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Page 37: Technical Reference
2 Technical Reference What This Chapter Contains Memory Map ........................ 37 DMA Channels ......................38 Fixed I/O Map....................... 39 PCI Configuration Space Map..................40 Interrupts ........................41 PCI Conventional Interrupt Routing Map ..............42 Connectors........................43 Jumper Block ....................... 52 Mechanical Considerations .................. -
Page 38: Dma Channels
Intel Desktop Board D915PLWD Technical Product Specification 2.2 DMA Channels Table 10. DMA Channels DMA Channel Number Data Width System Resource 8 or 16 bits Open 8 or 16 bits Parallel port 8 or 16 bits Diskette drive 8 or 16 bits... -
Page 39: Fixed I/O Map
Technical Reference 2.3 Fixed I/O Map Table 11. I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes Used by the Desktop Board D915PLWD. Refer to the ICH6 data sheet for dynamic addressing information. 0170 - 0177 8 bytes Secondary Parallel ATA IDE channel command block 01F0 - 01F7 8 bytes... -
Page 40: Pci Configuration Space Map
Intel Desktop Board D915PLWD Technical Product Specification 2.4 PCI Configuration Space Map Table 12. PCI Configuration Space Map Device Function Number (hex) Number (hex) Number (hex) Description Memory controller of Intel 82915PL component (Note 1) PCI Express x16 graphics port... -
Page 41: Interrupts
Technical Reference 2.5 Interrupts The interrupts can be routed through either the Programmable Interrupt Controller (PIC) or the Advanced Programmable Interrupt Controller (APIC) portion of the ICH6 component. The PIC is supported in Windows 98 SE and Windows ME and uses the first 16 interrupts. The APIC is supported in Windows 2000 and Windows XP and supports a total of 24 interrupts. -
Page 42: Pci Conventional* Interrupt Routing Map
Intel Desktop Board D915PLWD Technical Product Specification 2.6 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. -
Page 43: Connectors
Technical Reference 2.7 Connectors CAUTION Only the following connectors have overcurrent protection: back panel USB, front panel USB, and PS/2. The other internal connectors are not overcurrent 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 devices external to the computer’s chassis. -
Page 44: Component-Side Connectors
Intel Desktop Board D915PLWD Technical Product Specification 2.7.2 Component-side Connectors Figure 13 shows the locations of the component-side connectors. OM17980 Figure 13. Component-side Connectors... -
Page 45: Component-Side Connectors Shown In Figure 13
Technical Reference Table 16 lists the component-side connectors identified in Figure 13. Table 16. Component-side Connectors Shown in Figure 13 Item/callout from Figure 13 Description PCI Conventional bus add-in card connector 4 PCI Conventional bus add-in card connector 3 PCI Express x1 bus add-in card connector PCI Express x1 bus add-in card connector Front panel audio connector PCI Conventional bus add-in card connector 2... -
Page 46: Front Panel Audio Connector
Intel Desktop Board D915PLWD Technical Product Specification Table 17. Front Panel Audio Connector 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... -
Page 47: Main Power Connector
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 using a power supply with a 2 x 10 main power cable, attach that cable on the rightmost pins of the main power connector, leaving pins 11, 12, 23, and 24 unconnected. -
Page 48: Auxiliary Front Panel Power/Sleep Led Connector
Intel Desktop Board D915PLWD Technical Product Specification 2.7.2.2 Add-in Card Connectors The board has the following add-in card connectors: • PCI Express x16: one connector supporting simultaneous transfer speeds up to 8 GBytes/sec. • PCI Express x1: two PCI Express x1 connectors. The x1 interfaces support simultaneous transfer speeds up to 500 MBytes/sec. -
Page 49: Connection Diagram For Front Panel Connector
Technical Reference 2.7.2.4 Front Panel Connector This section describes the functions of the front panel connector. Table 25 lists the signal names of the front panel connector. Figure 14 is a connection diagram for the front panel connector. Table 25. Front Panel Connector Signal In/Out... -
Page 50: States For A One-Color Power Led
Intel Desktop Board D915PLWD Technical Product Specification 2.7.2.4.2 Reset Switch Connector [Purple] Pins 5 and 7 [Purple] can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the board resets and runs the POST. -
Page 51: Front Panel Usb Connectors
Technical Reference 2.7.3 Front Panel USB Connectors Figure 15 is a connection diagram for the front panel USB connectors. INTEGRATOR’S NOTES • The +5 V DC power on the USB connector is fused. • Pins 1, 3, 5, and 7 comprise one USB port. •... -
Page 52: Jumper Block
Intel Desktop Board D915PLWD Technical Product Specification 2.8 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. -
Page 53: Mechanical Considerations
Technical Reference 2.9 Mechanical Considerations 2.9.1 Form Factor The board is designed to fit into an ATX-form-factor chassis. Figure 17 illustrates the mechanical form factor of the board. Dimensions are given in inches [millimeters]. The outer dimensions are 12.00 inches by 9.60 inches [304.80 millimeters by 243.84 millimeters]. Location of the I/O connectors and mounting holes are in compliance with the ATX specification. -
Page 54: I/O Shield
ATX specification. NOTE The I/O shield drawing in this document is for reference only. An I/O shield compliant with the ATX chassis specification 2.03 is available from Intel. 162.3 REF [6.390] 1.6 ±... -
Page 55: Electrical Considerations
Technical Reference 2.10 Electrical Considerations 2.10.1 DC Loading Table 29 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. -
Page 56: Fan Connector Current Capability
Intel Desktop Board D915PLWD Technical Product Specification 2.10.3 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. -
Page 57: Thermal Considerations
All responsibility for determining the adequacy of any thermal or system design remains solely with the reader. Intel makes no warranties or representations that merely following the instructions presented in this document will result in a system with adequate thermal performance. -
Page 58: Localized High Temperature Zones
Intel Desktop Board D915PLWD Technical Product Specification CAUTION Ensure that proper airflow is maintained in the processor voltage regulator circuit. Failure to do so may result in damage to the voltage regulator circuit. The processor voltage regulator area (item A in Figure 20) can reach a temperature of up to 85 C in an open chassis. -
Page 59: Reliability
Intel 82801FB ICH6 C (under bias) For information about Refer to Intel Pentium 4 processor datasheets and specification updates Section 1.2, page 15 2.12 Reliability The Mean Time Between Failures (MTBF) prediction is calculated using component and subassembly random failure rates. The calculation is based on the Bellcore Reliability Prediction Procedure, TR-NWT-000332, Issue 4, September 1991. -
Page 60: Environmental
Intel Desktop Board D915PLWD Technical Product Specification 2.13 Environmental Table 32 lists the environmental specifications for the board. Table 32. Environmental Specifications Parameter Specification Temperature -40 °C to +70 °C Non-Operating 0 °C to +55 °C Operating Shock Unpackaged 50 g trapezoidal waveform... -
Page 61: Regulatory Compliance
Technical Reference 2.14 Regulatory Compliance This section describes the Desktop Boards’ compliance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 2.14.1 Safety Regulations Table 33 lists the safety regulations the Desktop Board D915PLWD complies with when correctly installed in a compatible host system. Table 33. -
Page 62: European Union Declaration Of Conformity Statement
• Consult the dealer or an experienced radio/TV technician for help. Any changes or modifications to the equipment not expressly approved by Intel Corporation could void the user’s authority to operate the equipment. Tested to comply with FCC standards for home or office use. -
Page 63: Product Ecology Statements
2.14.4.2 Recycling Considerations Intel encourages its customers to recycle its products and their components (e.g., batteries, circuit boards, plastic enclosures, etc.) whenever possible. In the U.S., a list of recyclers in your area can be found at: http://www.eiae.org/... -
Page 64: Product Certification Markings (Board Level)
Product Certification Markings Description Marking UL joint US/Canada Recognized Component mark. Includes adjacent UL file number for Intel Desktop Boards: E210882 (component side). FCC Declaration of Conformity logo mark for Class B equipment; includes Intel name and D915PLWD model designation (component side). -
Page 65: Overview Of Bios Features
BIOS Security Features ....................71 3.1 Introduction ® The board uses an Intel BIOS that is stored in the Firmware Hub (FWH) and can be updated using a disk-based program. The FWH contains the BIOS Setup program, POST, the PCI auto- configuration utility, and Plug and Play support. -
Page 66: Bios Flash Memory Organization
Intel Desktop Board D915PLWD Technical Product Specification Table 36 lists the BIOS Setup program menu features. Table 36. BIOS Setup Program Menu Bar Maintenance Main Advanced Security Power Boot Exit Clears Displays Configures Sets Configures Selects boot Saves or passwords and... -
Page 67: System Management Bios (Smbios)
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 configuration in the BIOS Setup program. To use ATA-66/100 features the following items are required: •... -
Page 68: Bios Updates
To install an operating system that supports USB, follow the operating system’s installation instructions. 3.6 BIOS Updates The BIOS can be updated using either of the following utilities, which are available on the Intel World Wide Web site: • ®... -
Page 69: Boot Options
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. -
Page 70: Adjusting Boot Speed
Intel Desktop Board D915PLWD Technical Product Specification 3.8 Adjusting Boot Speed These factors affect system boot speed: • Selecting and configuring peripherals properly • Optimized BIOS boot parameters 3.8.1 Peripheral Selection and Configuration The following techniques help improve system boot speed: •... -
Page 71: Bios Security Features
Overview of BIOS Features 3.9 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: •... - Page 72 Intel Desktop Board D915PLWD Technical Product Specification...
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Page 73: Error Messages And Beep Codes
4 Error Messages and Beep Codes What This Chapter Contains BIOS Error Messages ....................73 Port 80h POST Codes ....................75 Bus Initialization Checkpoints ..................79 Speaker ........................80 BIOS Beep Codes......................80 4.1 BIOS Error Messages Table 40 lists the error messages and provides a brief description of each. Table 40. - Page 74 Intel Desktop Board D915PLWD Technical Product Specification Table 40. 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.
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Page 75: Port 80H Post Codes
F000:0000 in Shadow RAM and give control to recovery code in F000 Shadow RAM. Initialize interrupt vector tables, initialize system timer, initialize DMA controller and interrupt controller. Initialize extra (Intel Recovery) Module. Initialize floppy drive. Try to boot from floppy. If reading of boot sector is successful, give control to boot sector code. -
Page 76: Runtime Code Uncompressed In F000 Shadow Ram
Intel Desktop Board D915PLWD Technical Product Specification Table 43. Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation NMI is Disabled. To check soft reset/power-on. BIOS stack set. Going to disable cache if any. POST code to be uncompressed. - Page 77 Error Messages and Beep Codes Table 43. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation To prepare the descriptor tables. To enter in virtual mode for memory test. To enable interrupts for diagnostics mode. To initialize data to check memory wrap around at 0:0. Data initialized.
- Page 78 Intel Desktop Board D915PLWD Technical Product Specification Table 43. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Lock-key checking over. To check for memory size mismatch with CMOS. Memory size check done. To display soft error and check for password or bypass setup.
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Page 79: Bus Initialization Checkpoints
Error Messages and Beep Codes Table 43. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in shadow. Going to copy any code to specific area. Copying of code to specific area done. -
Page 80: Speaker
Intel Desktop Board D915PLWD Technical Product Specification Table 46 describes the lower nibble of the high byte and indicates the bus on which the routines are being executed. Table 46. Lower Nibble High Byte Functions Value Description Generic DIM (Device Initialization Manager)