Intel D815EEA Product Manual

Intel D815EEA Product Manual

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Intel
Desktop Board D815EEA
®
Product Guide
Order Number: A16049-002

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Summary of Contents for Intel D815EEA

  • Page 1 Intel Desktop Board D815EEA ® Product Guide Order Number: A16049-002...
  • Page 2: Revision History

    Disclaimer Intel Corporation (Intel) makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Intel assumes no responsibility for any errors that may appear in this document.
  • Page 3: Table Of Contents

    1 Desktop Board Features Manufacturing Options ......................8 Components......................... 9 Processors ......................... 10 Main Memory ........................10 ECC Memory ......................11 ® Intel 815E Chipset ......................11 ® Intel 82815E Graphics Memory Controller Hub (GMCH) ......... 12 ® Intel 82801BA I/O Controller Hub (ICH2) ..............12 ®...
  • Page 4 Intel Desktop Board D815EEA Product Guide Installing and Removing GPA Cards................27 Removing the AGP Card Retention Mechanism ............28 Installing and Removing Memory ..................28 DIMM Installation Guidelines ..................29 Installing DIMMs ......................29 Removing DIMMs ...................... 30 Installing the I/O Shield....................... 30 Installing the Desktop Board....................
  • Page 5 Contents 5 Technical Reference Desktop Board Connectors ....................65 Back Panel Connectors ..................... 66 Midboard Connectors ....................67 Front Panel Connectors..................... 68 Desktop Board Resources....................69 Memory Map ......................69 DMA Channels ......................69 I/O Map ........................70 Interrupts ........................72 A Error Messages and Indicators BIOS Beep Codes ......................
  • Page 6 Intel Desktop Board D815EEA Product Guide 21. Back Panel Connectors....................66 22. Midboard Connectors....................67 23. Front Panel Connectors ....................68 24. Location of the Diagnostic LEDs .................. 74 Tables 1. Feature Summary ......................7 2. Manufacturing Options....................8 3. Supported Processors ....................10 4.
  • Page 7: Desktop Board Features

    Expansion Capabilities Six add-in card expansion slots: • Five PCI bus add-in card slots (SMBus routed to PCI slot 2) • One AGP universal slot supporting 1x, 2x, and 4x AGP cards • Intel/AMI BIOS BIOS • Intel ® 82802AB 4 Mbit Firmware Hub (FWH) •...
  • Page 8: Manufacturing Options

    Communication and Networking Riser (CNR) slot. If used, mechanically precludes the use of PCI slot 5. ✏ NOTE ® For information about Intel desktop boards, including technical product specifications, BIOS upgrades, and device drivers, go to the Intel World Wide Web site at: http://support.intel.com/support/motherboards/desktop/...
  • Page 9: Components

    82815E Graphics Memory Controller Intel 82802AB Firmware Hub (FWH) Hub (GMCH) SCSI hard drive activity LED connector DIMM sockets (3) Speaker Main power connector PCI slots Figure 1. Desktop Board Components ✏ NOTE Components labeled optional do not come on all D815EEA boards.
  • Page 10: Processors

    500A Celeron PPGA 533 and 500 processor For the latest information on processor support for the board, refer to the Intel desktop board web site at: http://support.intel.com/support/motherboards/desktop/ For instructions on installing or upgrading the processor, see Chapter 2. Main Memory The board supports 168-pin SDRAM DIMMs as defined below: •...
  • Page 11: Ecc Memory

    100 MHz system bus frequency processors will support 133 MHz memory, however, the memory will operate at 100 MHz. Intel 815E Chipset ® The Intel 815E chipset consists of the following devices: • Intel 82815E Graphics Memory Controller Hub (GMCH) • Intel 82801BA I/O Controller Hub (ICH2) •...
  • Page 12: Intel ® 82815E Graphics Memory Controller Hub (Gmch)

    The Intel 82815E GMCH has these features: • Support for processors above 500 MHz including: Intel Pentium III processor (FC-PGA, 100 MHz and 133 MHz system bus frequency) and Intel Celeron processor (PPGA and FC- PGA, 66 MHz system bus frequency) •...
  • Page 13: Input/Output (I/O) Controller

    The recommended method of accessing the date in systems with Intel desktop boards is indirectly from the Real-Time Clock (RTC) via the BIOS. The BIOS on Intel desktop boards contains a century checking and maintenance feature that checks the least two significant digits of the year stored in the RTC during each BIOS request (INT 1Ah).
  • Page 14: Pci Enhanced Ide Interface

    Intel Desktop Board D815EEA Product Guide PCI Enhanced IDE Interface The PCI enhanced IDE interface handles the exchange of information between the processor and † peripheral devices like hard disks, CD-ROM drives, and Iomega ZIP drives inside the computer. The interface supports: •...
  • Page 15: Enhanced Pci Audio Subsystem (Optional)

    BIOS The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE auto-configuration utilities, and the video BIOS. The BIOS is stored in the Intel 82802AB Firmware Hub. The BIOS can be upgraded by following the instructions in Chapter 3.
  • Page 16: Diagnostic Leds

    (beep code) information during the Power-On Self-Test (POST). LAN Subsystem The Intel 82562ET (in conjunction with the Intel 82801BA ICH2) provides a Fast Ethernet Wired for Management (WfM) PCI LAN subsystem providing both 10Base-T and 100Base-TX connectivity. Features include: •...
  • Page 17: Lan Subsystem Software

    Desktop Board Features LAN Subsystem Software For Intel 82562ET Fast Ethernet WfM PCI LAN software and drivers, refer to the D815EEA link on Intel’s World Wide Web site at: http://support.intel.com/support/motherboards/desktop RJ-45 LAN Connector LEDs Two LEDs are built into the RJ-45 LAN connector. Table 5 describes the LED states when the board is powered up and the LAN subsystem is operating.
  • Page 18: Wake On Lan Technology

    If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the ® LED turning amber. For more information about front panel LED states, see the Intel Desktop Board D815EEA Technical Product Specification.
  • Page 19: Estimating Standby Current

    Desktop Board Features CAUTION If the standby current necessary to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity, the desktop board may lose register settings stored in memory, etc. Calculate the standby current requirements using the steps described below. Power supplies used with this desktop board must be able to provide enough standby current to support the standard Instantly Available (ACPI S3 sleep state) configuration as outlined in Table 6.
  • Page 20: Standby Current Requirements

    Intel Desktop Board D815EEA Product Guide Table 6. Standby Current Requirements Instantly Available Current Standby Current Support Requirements Description Requirements (mA) Total for the board Minimum Onboard LAN (optional) Optional WOL header connected to wake enabled PCI LAN card PS/2 ports* AGP and PCI 2.2 slots (wake enabled...
  • Page 21: Wake On Ring

    Desktop Board Features Wake on Ring The operation of Wake on Ring can be summarized as follows: • Powers up the computer from the APM soft-off mode. • Requires two calls to access the computer:  The first call powers up the computer. ...
  • Page 22 Intel Desktop Board D815EEA Product Guide...
  • Page 23: Installing And Replacing Desktop Board Components

    2 Installing and Replacing Desktop Board Components This chapter tells you how to: • Install and remove the retention mechanism (included), and optional AGP, GPA, and DVI cards • Install and remove memory • Install and remove the desktop board •...
  • Page 24: Installing And Removing The Retention Mechanism And Agp And Gpa Cards

    Intel Desktop Board D815EEA Product Guide Installing and Removing the Retention Mechanism and AGP and GPA Cards The AGP universal connector supports AGP 1x, 2x, and 4x, and GPA cards. Newer cards have a retention notch as shown in Figure 3. When using notched cards, install the AGP card retention mechanism before installing the card.
  • Page 25: Agp Connector Location And Retention Mechanism (Rm) Placement (Inset)

    Installing and Replacing Desktop Board Components The RM encloses the desktop board’s AGP connector and provides additional mechanical stability to installed cards. Place the anti-static bag in which the desktop board was shipped on a flat, supportive surface. Place the desktop board on top of the bag component-side up. Follow the steps outlined below to attach the RM (A) to the AGP connector (B): 1.
  • Page 26: Installing An Agp Card

    Intel Desktop Board D815EEA Product Guide Installing an AGP Card CAUTION When installing an AGP card, press the card straight down into the AGP connector. Allowing the card to slide forward or backward even a little during installation can damage the pins of the AGP socket.
  • Page 27: Installing And Removing Gpa Cards

    Installing and Replacing Desktop Board Components Installing and Removing GPA Cards CAUTION Damage can occur to the pins of the AGP connector if the GPA card’s edge plug is not positioned squarely over the AGP connector before inserting. Using Figure 6 as a reference, follow these steps to install a GPA card: 1.
  • Page 28: Removing The Agp Card Retention Mechanism

    Installing and Removing Memory CAUTION ® To be fully compliant with all applicable Intel SDRAM memory specifications, the board requires DIMMs that support the Serial Presence Detect (SPD) data structure. You can access the PC Serial Presence Detect Specification at: http://www.intel.com/design/chipsets/memory/...
  • Page 29: Dimm Installation Guidelines

    PC Unbuffered DIMM Specification • PC Registered DIMM Specification You can access these documents through the Internet at: http://www.intel.com/design/chipsets/memory/ Installing DIMMs To install DIMMs, follow these steps: 1. Observe the precautions in “Before You Begin” (see page 23). 2. Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord.
  • Page 30: Removing Dimms

    Intel Desktop Board D815EEA Product Guide 8. When the DIMM is seated, push down on the top edge of the DIMM until the retaining clips snap into place. Make sure the clips are firmly in place. 9. Replace the computer’s cover and reconnect the AC power cord.
  • Page 31: Installing The Desktop Board

    Installing and Replacing Desktop Board Components Installing the Desktop Board Refer to your chassis manual for instructions on installing the desktop board. The desktop board is secured to the chassis by seven screws. Figure 10 shows the locations of the mounting screw holes.
  • Page 32: Installing The Processor

    Intel Desktop Board D815EEA Product Guide Installing the Processor To install a processor, follow these instructions: 1. Observe the precautions in “Before You Begin” (see page 23). 2. Locate the processor socket and raise the socket handle completely (see Figure 11).
  • Page 33: Closing The Handle

    Installing and Replacing Desktop Board Components 4. Close the handle completely (see Figure 13). OM08880 Figure 13. Closing the Handle 5. Place the fan heatsink on top of the processor (see Figure 14). OM09415 Figure 14. Attaching the Heatsink to the Processor...
  • Page 34: Attaching The Fan Heatsink Clip

    Intel Desktop Board D815EEA Product Guide 6. Attach the fan heatsink clips to the processor socket (see Figure 15). OM09416 Fan Heatsink Clip Processor Socket Figure 15. Attaching the Fan Heatsink Clip 7. Connect the processor fan cable to the processor fan connector (see Figure 16).
  • Page 35: Removing The Processor

    Installing and Replacing Desktop Board Components Removing the Processor To remove the processor, follow these instructions: 1. Observe the precautions in “Before You Begin” (see page 23). 2. Disconnect the processor fan cable. 3. Detach the fan heatsink clips. 4. Remove the heatsink. 5.
  • Page 36: Removing The Battery

    Intel Desktop Board D815EEA Product Guide To replace the battery, follow these steps: 1. Observe the precautions in “Before You Begin” (see page 23). 2. Turn off all peripheral devices connected to the computer. Disconnect the desktop board’s power cord from the AC power source (wall outlet or power adapter).
  • Page 37: Connecting The Ide Cable

    Installing and Replacing Desktop Board Components Connecting the IDE Cable ® The Intel boxed desktop board package includes a 40-contact, 80-conductor IDE cable. It is capable of connecting two drives to the desktop board. The cable supports Ultra ATA/66 and Ultra ATA/100 transfer protocols and is backward compatible with drives using slower IDE transfer protocols.
  • Page 38: Setting The Bios Configuration Jumper

    Intel Desktop Board D815EEA Product Guide Setting the BIOS Configuration Jumper CAUTION Always turn off the power and unplug the power cord from the computer before changing the jumper. Moving the jumper with the power on may result in unreliable computer operation.
  • Page 39: Clearing The Passwords

    Installing and Replacing Desktop Board Components Clearing the Passwords This procedure assumes that the desktop board is installed in the computer and the configuration jumper block is set to normal mode. 1. Observe the precautions in “Before You Begin” (see page 23). 2.
  • Page 40 Intel Desktop Board D815EEA Product Guide...
  • Page 41: Upgrading The Bios

    New BIOS files • BIOS recovery files • Intel Flash Memory Update Utility You can obtain the BIOS upgrade file through your computer supplier or from the Intel World Wide Web site: http://support.intel.com/support/motherboards/desktop/ ✏ NOTE Please review the instructions distributed with the update utility before attempting a BIOS upgrade.
  • Page 42: Recording The Current Bios Settings

    Example: sys a: To create a bootable diskette using a non-DOS system: 1. Obtain the BIOS upgrade file through your computer supplier or from the Intel World Wide Web site: http://support.intel.com/support/motherboards/desktop/ 2. Copy the BIOS upgrade file to a temporary directory on your hard disk.
  • Page 43: Creating A Bios Upgrade Diskette

    8. To extract the BIOS.EXE file to the diskette, change to the temporary directory that holds the BIOS.EXE file and type: BIOS A: 9. Press <Enter>. 10. The diskette now holds the new BIOS files, the Intel Flash Update Utility, and the recovery files. Upgrading the BIOS CAUTION The AUTOEXEC.BAT file provided with the update files updates the BIOS in two parts: first...
  • Page 44: Recovering The Bios

    Intel Desktop Board D815EEA Product Guide 9. To save the settings, press <F10>. 10. To accept the settings, press <Enter>. 11. Turn off the computer and reboot. Recovering the BIOS It is unlikely that anything will interrupt the BIOS upgrade, however, if an interruption occurs, the BIOS could be damaged.
  • Page 45: Using The Setup Program

    4 Using the Setup Program You can use the BIOS Setup program to change the configuration information and boot sequence for the computer. This chapter tells you how to access the BIOS Setup program and lists Setup features, options, and default settings. ✏...
  • Page 46: Bios Setup Program Menu Bar

    Intel Desktop Board D815EEA Product Guide ✏ NOTE The Setup menus described in this section apply to the D815EEA desktop board with BIOS identifier EA81510A.86A. Desktop boards with other BIOS identifiers might have differences in some of the Setup menu screens.
  • Page 47: Maintenance Menu

    Using the Setup Program Maintenance Menu This menu is used to clear passwords, to access the extended configuration submenu, and to access CPU information. Setup only displays this menu in the configure mode. See page 38 for information about setting the configure mode. To access this menu, select Maintenance on the menu bar at the top of the screen.
  • Page 48: Extended Configuration Submenu

    Intel Desktop Board D815EEA Product Guide Extended Configuration Submenu To access this submenu, select Maintenance on the menu bar, then Extended Configuration. Maintenance Main Advanced Security Power Boot Exit Extended Configuration The submenu represented by Table 11 is for setting video memory cache mode. This submenu becomes available when User Defined is selected under Extended Configuration.
  • Page 49: Main Menu

    Using the Setup Program Main Menu To access this menu, select Main on the menu bar at the top of the screen. Main Maintenance Advanced Security Power Boot Exit Table 12 describes the Main Menu. This menu reports processor and memory information and is for configuring the system date and system time.
  • Page 50: Advanced Menu

    Intel Desktop Board D815EEA Product Guide Advanced Menu To access this menu, select Advanced on the menu bar at the top of the screen. Advanced Maintenance Main Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration...
  • Page 51: Pci Configuration Submenu

    Using the Setup Program PCI Configuration Submenu To access this submenu, select Advanced on the menu bar, then PCI Configuration. Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration The submenu represented by Table 14 is for configuring the IRQ priority of PCI slots individually.
  • Page 52: Boot Configuration Submenu

    Intel Desktop Board D815EEA Product Guide Boot Configuration Submenu To access this submenu, select Advanced on the menu bar, then Boot Configuration. Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration...
  • Page 53: Peripheral Configuration Submenu

    Using the Setup Program Peripheral Configuration Submenu To access this submenu, select Advanced on the menu bar, then Peripheral Configuration. Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration The submenu represented in Table 16 is used for configuring computer peripherals.
  • Page 54 Intel Desktop Board D815EEA Product Guide Table 16. Peripheral Configuration Submenu (continued) Feature Options Description • IRQ 3 Interrupt Specifies the interrupt for Serial port B. (default) (This feature is present only when Serial Port B • IRQ 4 is set to Enabled) •...
  • Page 55: Ide Configuration Submenu

    Using the Setup Program IDE Configuration Submenu To access this submenu, select Advanced on the menu bar, then IDE Configuration. Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration The menu represented in Table 17 is used to configure IDE device options.
  • Page 56: Primary/Secondary Ide Master/Slave Submenus

    Intel Desktop Board D815EEA Product Guide Primary/Secondary IDE Master/Slave Submenus To access these submenus, select Advanced on the menu bar, then IDE Configuration, and then the master or slave to be configured. Maintenance Main Advanced Security Power Boot Exit PCI Configuration...
  • Page 57: Diskette Configuration Submenu

    Using the Setup Program Table 18. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options Description • Disabled (default) Ultra DMA Specifies the Ultra DMA mode for the drive. (This feature is present • Mode 0 only when Type is not • Mode 1 set to Auto.) •...
  • Page 58: Event Log Configuration Submenu

    Intel Desktop Board D815EEA Product Guide Event Log Configuration Submenu To access this menu, select Advanced on the menu bar, then Event Log Configuration. Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration...
  • Page 59: Video Configuration Submenu

    Using the Setup Program Video Configuration Submenu To access this menu, select Advanced on the menu bar, then Video Configuration. Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration The submenu represented in Table 21 is for configuring the video features.
  • Page 60: Security Menu

    Intel Desktop Board D815EEA Product Guide Security Menu To access this menu, select Security from the menu bar at the top of the screen. Security Maintenance Main Advanced Power Boot Exit The menu represented by Table 22 is for setting passwords and security features.
  • Page 61: Power Menu

    Using the Setup Program Power Menu To access this menu, select Power from the menu bar at the top of the screen. Power Maintenance Main Advanced Security Boot Exit The menu represented in Table 23 is for setting the power management features. Table 23.
  • Page 62: Boot Menu

    Intel Desktop Board D815EEA Product Guide Boot Menu To access this menu, select Boot from the menu bar at the top of the screen. Boot Maintenance Main Advanced Security Power Exit IDE Drive Configuration The menu represented in Table 24 is used to set the boot features and the boot sequence.
  • Page 63: Ide Drive Configuration Submenu

    Using the Setup Program Table 24. Boot Menu (continued) Feature Options Description IDE Drive Configuration No Options Configures IDE drives. When selected, displays the IDE Drive Configuration submenu. Notes: ARMD-FDD = ATAPI removable device - floppy disk drive ARMD-HDD = ATAPI removable device - hard disk drive HDD = Hard Disk Drive IDE Drive Configuration Submenu To access this menu, select Boot on the menu bar, then IDE Drive Configuration.
  • Page 64: Exit Menu

    Intel Desktop Board D815EEA Product Guide Exit Menu To access this menu, select Exit from the menu bar at the top of the screen. Exit Maintenance Main Advanced Security Power Boot The menu represented in Table 26 is for exiting the BIOS Setup program, saving changes, and loading and saving defaults.
  • Page 65: Technical Reference

    5 Technical Reference Desktop Board Connectors The desktop board’s connectors can be divided into three groups, as shown in Figure 20. Back panel connectors (see page 66) Midboard connectors (see page 67) Front panel connectors (see page 68) OM10106 Figure 20. Connector Groups CAUTION Many of the midboard and front panel connectors provide operating voltage (+5 V DC and +12 V DC, for example) to devices inside the computer chassis, such as fans and internal...
  • Page 66: Back Panel Connectors

    Intel Desktop Board D815EEA Product Guide Back Panel Connectors Figure 21 shows the back panel connectors on the desktop board. The back panel connectors are color-coded in compliance with PC 99 recommendations. The figure legend below lists the colors used.
  • Page 67: Midboard Connectors

    Technical Reference Midboard Connectors Figure 22 shows the location of the midboard connectors. OM10104 CNR (optional) Processor fan (Fan 3) PCI slot 5 Power PCI slot 4 Diskette drive (Floppy) PCI slot 3 Primary IDE PCI slot 2 Secondary IDE PCI slot 1 Serial port (COM 2) AGP universal...
  • Page 68: Front Panel Connectors

    Intel Desktop Board D815EEA Product Guide Front Panel Connectors Figure 23 shows the location of the front panel connectors. J8C2 J9C1 OM10103 J8C2: Alternate front panel power LED connector J9C1: Front panel connector A Infrared port B Reset switch C Hard drive activity LED...
  • Page 69: Desktop Board Resources

    Technical Reference Desktop Board Resources Memory Map Table 27. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K - 524288 K 100000 - 1FFFFFFF 511 MB Extended memory 960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS 896 K - 960 K...
  • Page 70: I/O Map

    Intel Desktop Board D815EEA Product Guide I/O Map Table 29. I/O Map Address (hex) Size Description 0000 - 000F 16 bytes DMA controller 0020 - 0021 2 bytes Programmable Interrupt Control (PIC) 0040 - 0043 4 bytes System timer 0060 1 byte Keyboard controller byte—reset IRQ...
  • Page 71 Secondary bus master IDE registers 96 contiguous bytes ICH (ACPI + TCO) starting on a 128-byte divisible boundary 64 contiguous bytes D815EEA desktop board resource starting on a 64-byte divisible boundary 64 contiguous bytes Onboard audio controller starting on a 64-byte...
  • Page 72: Interrupts

    Intel Desktop Board D815EEA Product Guide Interrupts Table 30. Interrupts System Resource I/O channel check Reserved, interval timer Reserved, keyboard buffer full Reserved, cascade interrupt from slave PIC COM2* (user available if COM2 is not present) COM1* LPT2 (Plug and Play option) / audio / user available...
  • Page 73: A Error Messages And Indicators

    A Error Messages and Indicators The board reports POST errors in three ways: • By sounding a beep code • By lighting the diagnostic LEDs • By displaying an error message on the monitor BIOS Beep Codes The BIOS beep codes are listed in Table 31. The BIOS also issues a beep code (one long tone followed by two short tones) during POST if the video configuration fails (a faulty video card or no card installed) or if an external ROM module does not properly checksum to zero.
  • Page 74: Diagnostic Leds

    Intel Desktop Board D815EEA Product Guide Diagnostic LEDs Four dual-colored diagnostic LEDs are located on the back-panel next to the serial port (see Figure 24). If the BIOS stops (hangs) during the POST, the state of the LEDs indicates which BIOS operation was in progress when the BIOS hung.
  • Page 75: Diagnostic Led States

    Error Messages and Indicators Table 32. Diagnostic LED States Display BIOS Operation Display BIOS Operation Amber Power on, starting BIOS Amber Undefined Amber Amber Amber Amber Amber Green Green Recovery mode Green Undefined Amber Amber Amber Amber Amber Green Amber Processor, cache, etc.
  • Page 76: Bios Error Messages

    Intel Desktop Board D815EEA Product Guide BIOS Error Messages When a recoverable error occurs during the POST, the BIOS displays an error message describing the problem. Table 33. BIOS Error Messages Error Message Explanation GA20 Error An error occurred with Gate A20 when switching to protected mode during the memory test.
  • Page 77 Error Messages and Indicators Table 33. BIOS Error Messages (continued) Error Message Explanation Memory Size Decreased Memory size has decreased since the last boot. If no memory was removed, then memory may be bad. Memory Size Increased Memory size has increased since the last boot. If no memory was added, there may be a problem with the system.
  • Page 78 Intel Desktop Board D815EEA Product Guide...
  • Page 79: B Regulatory And Integration Information

    B Regulatory and Integration Information This appendix contains: • Safety standards, electromagnetic compatibility regulations, and product certification markings for this desktop board • Instructions and precautions for integrators who are installing this desktop board in a chassis Regulatory Compliance This desktop board complies with the following safety and EMC regulations when correctly installed in a compatible chassis.
  • Page 80: Product Certification Markings

    • UL file number for desktop boards: E139761 (Component side) • PB part number: Intel bare circuit board part number (Solder side) 726794-003 • Battery “+ Side Up” marking: Located on the component side of the board in close proximity to the battery holder •...
  • Page 81: Installation Requirements

    Appropriate protection is provided by a maximum 8 A current limiting circuit, or a maximum 5 A fuse, or Positive Temperature Coefficient (PTC) resistor. All Intel desktop boards now have PTCs on all external ports that provide DC power externally.
  • Page 82: Prevent Power Supply Overload

    Appropriate protection is provided by a maximum 8 A current limiting circuit, or a maximum 5 A fuse, or positive temperature coefficient (PTC) resistor. All Intel desktop boards now have PTCs on all external ports that provide DC power externally.

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