Desktop Board D915PCY/D915PCM 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 D915PCY/D915PCM Specification Update.
Summary of Contents for Intel BOXD915PCML - Desktop Board D915PCML
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Order Number: C74531-001 ® The Intel Desktop Board D915PCY/D915PCM 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 D915PCY/D915PCM Specification Update.
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.
Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, ® power and environmental requirements, and the BIOS for these Intel Desktop Boards: D915PCY and D915PCM. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Boards D915PCY and D915PCM and their components to the vendors, system integrators, and other engineers and technicians who need this level of information.
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Intel Desktop Board D915PCY/D915PCM 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 D915PCY and D915PCM, and X is the instance of the particular part at that general location.
Desktop Boards used an add-in card connector referred to as PCI. This generation of Intel Desktop Boards adds a new technology for add-in cards: PCI Express. The 32-bit parallel bus previously referred to as PCI is now called PCI Conventional.
LAN Support 10/100 Mbits/sec LAN subsystem using the Intel 82562EZ 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 • Support for PCI Local Bus Specification Revision 2.2...
1.3.2 Manufacturing Options Table 3 describes the manufacturing options on the Desktop Boards D915PCY and D915PCM. Not every manufacturing option is available in all marketing channels. Please contact your Intel representative to determine which manufacturing options are available to you.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.3.3 Board Layouts Figure 1 shows the location of the major components on the Desktop Board D915PCY. H I J OM17051 Figure 1. D915PCY Board Components Table 4 lists the components identified in Figure 1.
Serial ATA connectors Auxiliary front panel power LED connector Front panel connector ATX fan connector (optional) Front panel USB connector Intel 82801FB I/O Controller Hub (ICH6) Front panel IEEE-1394a connectors (optional) IEEE-1394a controller (optional) PCI Conventional bus add-in card connectors...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification Figure 2 shows the location of the major components on the Desktop Board D915PCM. F G H OM17052 Figure 2. D915PCM Board Components Table 5 lists the components identified in Figure 2.
4 Mbit Firmware Hub (FWH) Front chassis fan connector Serial ATA connectors Auxiliary front panel power LED connector Front panel connector Front panel USB connector Intel 82801FB I/O Controller Hub (ICH6) Front panel IEEE-1394a connectors (optional) IEEE-1394a controller (optional) Speaker...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.3.4 Block Diagram Figure 3 is a block diagram of the major functional areas of the boards. PCI Express x1 Interface PCI Express x1 Slot 1 Back Panel/Front Panel D915PCY USB Ports PCI Express x1 Slot 2...
1.5 Processor The boards are 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.
Intel Desktop Board D915PCY/D915PCM 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 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 1.6.1 Memory Configurations The Intel 82915P 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.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.6.1.1 Dual Channel (Interleaved) 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. Channel A, DIMM 0...
Product Description Figure 7 shows a dual channel configuration 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. Channel A, DIMM 0 256 MB 512 MB...
Intel Desktop Board D915PCY/D915PCM 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 using one DIMM. In this example, only the DIMM0 (blue) socket of Channel A is populated. Channel B is not populated.
1.7 Intel ® 915P Chipset The Intel 915P chipset consists of the following devices: • Intel 82915P 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.
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Intel Desktop Board D915PCY/D915PCM 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.
Product Description For information about Refer to The location of the Serial ATA IDE connectors on the D915PCY board Figure 18, page 60 The location of the Serial ATA IDE connectors on the D915PCM board Figure 19, page 62 1.7.2.3 SCSI Hard Drive Activity LED Connector (Optional) The SCSI hard drive activity LED connector is a 1 x 2-pin connector that allows an add-in hard drive controller to use the same LED as the onboard IDE controller.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.9 I/O Controller The I/O controller provides the following features: • Two serial ports (Serial Port B is optional) • One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support •...
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.
The signal names of the optional S/PDIF connector Table 20, page 64 1.10.3 Intel High Definition Audio Subsystem ® The Intel High Definition Audio subsystem includes the following: • Intel 82801FB I/O Controller Hub (ICH6) • Realtek ALC860 audio codec •...
PCI Conventional bus power management Supports ACPI technology Supports LAN wake capabilities 1.11.1 Intel 82562EZ Physical Layer Interface Device ® The Intel 82562EZ provides the following functions: • Basic 10/100 Ethernet LAN connectivity • Full device driver compatibility • Programmable transit threshold •...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.11.1.1 RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (shown in Figure 12 below). Green LED Yellow LED OM15076 Figure 12. LAN Connector LED Locations Table 7 describes the LED states when the board is powered up and the 10/100 Mbits/sec LAN subsystem is operating.
Product Description 1.11.3 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 1.4, page 19 1.11.4 Intel Wireless Connect Technology (Optional) ® ®...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.12.2 Thermal Monitoring Figure 13 shows the location of the sensors and fan connectors for the D915PCY board. OM17055 Item Description Thermal diode, located on processor die Remote ambient temperature sensor Ambient temperature sensor, internal to hardware monitoring and fan control...
Figure 14. Thermal Monitoring for D915PCM Board 1.12.3 Fan Monitoring ® Fan monitoring can be implemented using Intel Desktop Utilities, LANDesk* software, or third- party software. The level of monitoring and control is dependent on the hardware monitoring ASIC used with the Desktop Board.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.12.4 Chassis Intrusion and Detection The boards support a chassis security feature that detects if the chassis cover is removed. The security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion connector.
Product Description Table 8 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 8. Effects of Pressing the Power Switch …and the power switch is If the system is in this state…...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification Table 9 lists the power states supported by the boards along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states. Table 9.
Product Description 1.13.1.2 Wake-up Devices and Events Table 10 lists the devices or specific events that 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 (Note) S1, S3, S4, S5 Modem (back panel Serial Port A) S1, S3...
Intel Desktop Board D915PCY/D915PCM 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 1.13.2.3 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 D915PCY/D915PCM Technical Product Specification 1.13.2.5 Resume on Ring The operation of Resume on Ring can be summarized as follows: • Resumes operation from ACPI S1 or S3 states • Detects incoming call similarly for external and internal modems •...
Product Description 1.13.2.10 +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 15 shows the location of the standby power indicator LED in the D915PCY board.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.14 Trusted Platform Module (Optional) The optional Trusted Platform Module (TPM) is a component on the desktop board that is specifically designed to enhance platform security above-and-beyond the capabilities of today’s software by providing a protected space for key operations and other security critical tasks. Using both hardware and software, the TPM protects encryption and signature keys at their most vulnerable stages—operations when the keys are being used unencrypted in plain-text form.
Product Description 1.14.3 Security Precautions Security, like any other aspect of computer maintenance requires planning. What is unique about security has to do with understanding who "friends" and adversaries are. The TPM provides mechanisms to enable the owner/user to protect their information from adversaries. To provide this protection the TPM effectively puts "locks"...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.14.3.2 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.
Product Description 1.14.5 Enabling the Trusted Platform Module The Trusted Platform Module is disabled by default when shipped to insure that the owner/end customer of the system initializes the TPM and configures all security passwords. The owner/end customer should use the following steps to enable the TPM. 1.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 15. Follow the instructions and create and document 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.
Product Description 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 file locations as requested. It may take up to 20 minutes for Security Platform Initialization Wizard to restore the security platform settings. 6.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 1.14.9 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 •...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification • Memory-mapped I/O that is dynamically allocated for PCI Conventional and PCI Express add-in cards The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. Figure 16 shows a schematic of the system memory map. All installed system memory can be used when there is no overlap of system addresses.
(Note 2) (Note 3) PCI Conventional bus connector 4 (Note 3) Intel 82562EZ 10/100 Mbits/sec LAN PLC (if present) Notes: Present only when a PCI Express x16 graphics card is installed. Not present on the D915PCM board Bus number is dynamic and can change based on add-in cards used.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 2.6 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.
Technical Reference affect the operation or throughput of the devices. In some special cases where maximum performance is needed from a device, a PCI Conventional device should not share an interrupt with other PCI Conventional devices. Use the following information to avoid sharing an interrupt with a PCI Conventional add-in card.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 2.8 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.
Technical Reference Table 17 lists the back panel connectors identified in Figure 17. NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality occurs if passive (non-amplified) speakers are connected to this output. Table 17.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 2.8.2 Component-side Connectors Figure 18 shows the locations of the component-side connectors on the D915PCY board. T S R OM17059 Figure 18. D915PCY Board Component-side Connectors Table 18 lists the component-side connectors identified in Figure 18.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification Table 20. S/PDIF Connector (Optional) Signal Name +5 V S/PDIF Output Ground Table 21. ATAPI CD-ROM Connector (Optional) Signal Name Left audio input from CD-ROM CD audio differential ground CD audio differential ground Right audio input from CD-ROM Table 22.
Technical Reference Table 25. SCSI Hard Drive Activity LED Connector (Optional) Signal Name SCSI_ACT# No connect Table 26. Serial ATA Connectors Signal Name Ground Ground Ground Table 27. Processor Fan Connector Signal Name Ground +12 V FAN_TACH FAN_CONTROL 2.8.2.1 Chassis Fan Connectors The D915PCY board has three standard and one optional chassis fan 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 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.
Technical Reference Table 30. ATX12V Power Connector Signal Name Signal Name Ground Ground +12 V +12 V Table 31. Alternate Power Connector Signal Name +12 V Ground Ground +5 V 2.8.2.3 Add-in Card Connectors The board has the following add-in card connectors: •...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 2.8.2.4 Auxiliary Front Panel Power/Sleep LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector. Table 32. Auxiliary Front Panel Power/Sleep LED Connector...
Technical Reference 2.8.2.5.1 Hard Drive Activity LED Connector [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: •...
Intel Desktop Board D915PCY/D915PCM Technical Product Specification • Pins 2, 4, 6, and 8 comprise one USB port. • Use only a front panel USB connector that conforms to the USB 2.0 specification for high- speed USB devices. Power Power...
Technical Reference 2.9 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. Figure 23 shows the location of the jumper block on the D915PCY board. (The jumper is in the same location on the D915PCM board.) The jumper block determines the BIOS Setup program’s mode.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 2.10 Mechanical Considerations 2.10.1 D915PCY Board Form Factor The D915PCY board is designed to fit into an ATX-form-factor chassis. Figure 24 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].
Technical Reference 2.10.2 D915PCM Board Form Factor The D915PCM board is designed to fit into either a microATX or an ATX-form-factor chassis. Figure 25 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].
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 ±...
Technical Reference 2.11 Electrical Considerations 2.11.1 DC Loading Table 37 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. The analysis does not include PCI add-in cards.
Intel Desktop Board D915PCY/D915PCM 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.
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 All responsibility for determining the adequacy of any thermal or system design remains solely with the reader.
Intel Desktop Board D915PCY/D915PCM 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 28) can reach a temperature of up to 85 C in an open chassis.
Intel 82801FB ICH6 C (under bias) Refer to For information about Intel Pentium 4 processor datasheets and specification updates Section 1.4, page 19 2.13 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.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification 2.14 Environmental Table 40 lists the environmental specifications for the board. Table 40. Environmental Specifications Parameter Specification Temperature -40 °C to +70 °C Non-Operating 0 °C to +55 °C Operating Shock Unpackaged 50 g trapezoidal waveform...
Connect the equipment to a different electrical branch circuit from that to which the receiver is connected. • 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.
Cet appereil numérique de la classe B est conforme à la norme NMB-003 du Canada. 2.15.3 European Union Declaration of Conformity Statement ® We, Intel Corporation, declare under our sole responsibility that the product: Intel Desktop Boards D915PCY and D915PCM are 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).
2.15.4.2 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/...
BIOS Security Features....................91 3.1 Introduction The boards use an Intel/AMI 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.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification Table 44 lists the BIOS Setup program menu features. Table 44. 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 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: •...
To install an operating system that supports USB, verify that Legacy USB support in the BIOS Setup program is set to Enabled and 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: •...
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.
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.
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: •...
4 Error Messages and Beep Codes What This Chapter Contains BIOS Error Messages ....................93 Port 80h POST Codes....................95 Bus Initialization Checkpoints ..................99 Speaker........................100 BIOS Beep Codes ....................100 4.1 BIOS Error Messages Table 48 lists the error messages and provides a brief description of each. Table 48.
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Intel Desktop Board D915PCY/D915PCM 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.
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.
Intel Desktop Board D915PCY/D915PCM Technical Product Specification Table 51. 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.
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Error Messages and Beep Codes Table 51. 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.
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Intel Desktop Board D915PCY/D915PCM Technical Product Specification Table 51. 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.
Error Messages and Beep Codes Table 51. 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.
Intel Desktop Board D915PCY/D915PCM 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 Generic DIM (Device Initialization Manager)
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