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Intel® Desktop Board D945PWM Product Guide Order Number: D44265-001 Revision History Revision -001 Revision History First release of the Intel® Desktop Board D945PWM Product Guide. Date January 2006 If an FCC declaration of conformity marking is present on the board, the following statement applies: FCC Declaration of Conformity This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. For questions related to the EMC performance of this product, contact: Intel Corporation 5200 N.E. Elam Young Parkway Hillsboro, OR 97124 1-800-628-8686 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and the receiver. · Connect the equipment to an outlet on a circuit other than the one 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. Tested to comply with FCC standards for home or office use. Canadian Department of Communications Compliance Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. Le présent appareil numerique német pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la classe B prescrites dans le Réglement sur le broullage radioélectrique édicté par le ministére des Communications du Canada. Disclaimer Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. Desktop Board D945PWM may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest specifications and 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 by going to the World Wide Web site at: http://www.intel.com/ or by calling 1-800-548-4725. Intel, Pentium, and Celeron are registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. * Other names and brands may be claimed as the property of others. Copyright © 2006, Intel Corporation. All rights reserved. Preface This Product Guide gives information about board layout, component installation, BIOS update, and regulatory requirements for Intel® Desktop Board D945PWM. Intended Audience The Product Guide is intended for technically qualified personnel. It is not intended for general audiences. Use Only for Intended Applications All Intel desktop boards are evaluated as Information Technology Equipment (I.T.E.) for use in personal computers (PC) for installation in homes, offices, schools, computer rooms, and similar locations. The suitability of this product for other PC or embedded non-PC applications or other environments, such as medical, industrial, alarm systems, test equipment, etc. may not be supported without further evaluation by Intel. Information Layout The chapters in this Product Guide are arranged as follows: 1 Desktop Board Features: a summary of product features 2 Installing and Replacing Desktop Board Components: instructions on how to install the desktop board and other hardware components 3 BIOS: instructions on how to update the BIOS A Error Messages and Indicators: information about BIOS error messages and beep codes B Regulatory Compliance: safety and EMC regulations, product certification Conventions The following conventions are used in this manual: CAUTION Cautions warn the user about how to prevent damage to hardware or loss of data. NOTE Notes call attention to important information. iii Intel Desktop Board D945PWM Product Guide Terminology The table below gives descriptions to some common terms used in the product guide. Term GB GHz KB MB Mbit MHz Description Gigabyte (1,073,741,824 bytes) Gigahertz (one billion hertz) Kilobyte (1024 bytes) Megabyte (1,048,576 bytes) Megabit (1,048,576 bits) Megahertz (one million hertz) Box Contents · · · · · · · · · · · · Intel® Desktop Board D945PWM NVIDIA* GeForce* 6200 LE Graphics Card I/O shield One ATA-66/100 cable Two locking Serial ATA cables One diskette drive cable Audio port covers Intel® Express Installer Driver CD-ROM Intel Express Installer Software DVD One diskette with Intel® Matrix Storage Raid Driver Quick Reference poster Configuration and battery caution statement label iv Contents 1 Desktop Board Features Supported Operating Systems .............................................................................................. 10 Desktop Board Components ................................................................................................. 11 Processor .............................................................................................................................. 13 Main Memory ........................................................................................................................ 14 Intel® 945P Express Chipset................................................................................................. 15 Graphics Subsystem ............................................................................................................. 15 Audio Subsystem .................................................................................................................. 15 Input/Output (I/O) Controller.................................................................................................. 16 LAN Subsystem .................................................................................................................... 16 LAN Subsystem Software ............................................................................................ 16 RJ-45 LAN Connector LEDs ........................................................................................ 16 Hi-Speed USB 2.0 Support ................................................................................................... 17 Enhanced IDE Interface ........................................................................................................ 17 Serial ATA ............................................................................................................................. 17 Expandability......................................................................................................................... 18 BIOS...................................................................................................................................... 18 Serial ATA and IDE Auto Configuration ....................................................................... 18 PCI and PCI Express Auto Configuration .................................................................... 18 Security Passwords...................................................................................................... 18 Chassis Intrusion................................................................................................................... 19 Power Management Features............................................................................................... 19 ACPI............................................................................................................................. 19 Power Connectors........................................................................................................ 19 Fan Connectors............................................................................................................ 19 Fan Speed Control (Intel® Precision Cooling Technology) .......................................... 19 Suspend to RAM (Instantly Available PC Technology) ................................................ 20 Wake from USB ........................................................................................................... 21 Wake from PS/2 Keyboard/Mouse............................................................................... 21 PME# Wakeup Support................................................................................................ 21 Speaker................................................................................................................................. 21 Battery................................................................................................................................... 21 Real-Time Clock.................................................................................................................... 21 2 Installing and Replacing Desktop Board Components Before You Begin .................................................................................................................. 23 Installation Precautions ......................................................................................................... 24 Installation Instructions.......................................................................................................... 24 Ensure Electromagnetic Compatibility (EMC) Compliance .......................................... 24 Chassis and Component Certifications ........................................................................ 25 Prevent Power Supply Overload .................................................................................. 25 Place Battery Marking .................................................................................................. 25 Use Only for Intended Applications.............................................................................. 26 Installing the I/O Shield ......................................................................................................... 26 Installing and Removing the Desktop Board ......................................................................... 27 v Intel Desktop Board D945PWM Product Guide Installing and Removing a Processor.................................................................................... 28 Installing a Processor................................................................................................... 28 Installing the Processor Fan Heat Sink ........................................................................ 31 Connecting the Processor Fan Heat Sink Cable.......................................................... 31 Removing the Processor.............................................................................................. 31 Installing and Removing Memory.......................................................................................... 32 Installing DIMMs........................................................................................................... 34 Removing DIMMs......................................................................................................... 35 Installing and Removing a PCI Express* x16 Card............................................................... 36 Installing a PCI Express x16 Card ............................................................................... 36 Removing the PCI Express x16 Card .......................................................................... 36 Connecting the IDE Cable..................................................................................................... 37 Connecting the Serial ATA (SATA) Cable............................................................................. 38 Connecting Internal Headers ................................................................................................ 39 Installing a Front Panel Audio Solution for Intel® High Definition Audio....................... 40 Connecting USB 2.0 Headers ...................................................................................... 41 Connecting IEEE 1394a Headers ................................................................................ 41 Connecting the Front Panel Header............................................................................. 41 Setting Up the Flexible Audio with Jack Retasking ............................................................... 42 Connecting Fan and Power Cables ...................................................................................... 43 Connecting Fan Cables................................................................................................ 43 Connecting Power Supply Cables................................................................................ 44 Other Connectors.................................................................................................................. 45 Setting the BIOS Configuration Jumper Block ...................................................................... 46 Clearing Passwords .............................................................................................................. 47 3 BIOS Updating the BIOS with the Intel® Express BIOS Update Utility ........................................... 53 Updating the BIOS with the Iflash Memory Update Utility..................................................... 54 Obtaining the BIOS Update File................................................................................... 54 Updating the BIOS ....................................................................................................... 54 Recovering the BIOS ................................................................................................... 55 A Error Messages and Indicators BIOS Beep Codes................................................................................................................. 57 BIOS Error Messages ........................................................................................................... 57 B Regulatory Compliance Safety Regulations ................................................................................................................ 59 European Union Declaration of Conformity Statement ......................................................... 59 Product Ecology Statements................................................................................................. 61 Lead Free Desktop Board ............................................................................................ 63 EMC Regulations .................................................................................................................. 64 Product Certification Markings (Board Level)........................................................................ 65 vi Contents Figures 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. Desktop Board D945PWM Components ........................................................................ 11 LAN Connector LEDs ..................................................................................................... 16 Location of Standby Power Indicator.............................................................................. 20 Installing the I/O Shield................................................................................................... 26 Desktop Board D945PWM Mounting Screw Hole Locations.......................................... 27 Lift Socket Lever............................................................................................................. 28 Lift the Load Plate and Don't Touch the Socket Contacts .............................................. 28 Remove the Protective Socket Cover............................................................................. 29 Remove the Processor from the Protective Processor Cover/Do Not Touch................. 29 Install Processor ............................................................................................................. 30 Close the Load Plate ...................................................................................................... 30 Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector ........ 31 Dual Configuration Example 1........................................................................................ 32 Dual Configuration Example 2........................................................................................ 32 Dual Configuration Example 3........................................................................................ 33 Installing a DIMM............................................................................................................ 34 Inserting a PCI Express x16 Card .................................................................................. 36 Connecting the IDE Cable .............................................................................................. 37 Connecting the Serial ATA Cable................................................................................... 38 Internal Headers ............................................................................................................. 39 Back Panel Audio Connectors........................................................................................ 42 Location of Fan Headers ................................................................................................ 43 Connecting Power Supply Cables .................................................................................. 44 Location of Other Connectors on Desktop Board D945PWM ........................................ 45 Location of the BIOS Configuration Jumper ................................................................... 46 Removing the Battery ..................................................................................................... 52 F2 Key ............................................................................................................................ 53 Tables 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Feature Summary............................................................................................................. 9 Desktop Board D945PWM Components ........................................................................ 12 Power Supply Requirements .......................................................................................... 13 Desktop Board D945PWM Memory Configurations ....................................................... 14 RJ-45 10/100 Ethernet LAN Connector LEDs ................................................................ 17 Front Panel Audio Header Signal Names for Intel® High Definition Audio ..................... 40 AC '97 Audio Header Signal Names .............................................................................. 40 USB 2.0 Header Signal Names ...................................................................................... 41 IEEE 1394a Header Signal Names ................................................................................ 41 Front Panel Header Signal Names................................................................................. 41 Jumper Settings for the BIOS Setup Program Modes.................................................... 46 Beep Codes.................................................................................................................... 57 BIOS Error Messages..................................................................................................... 57 Safety Regulations ......................................................................................................... 59 Lead Free Desktop Board .............................................................................................. 63 EMC Regulations............................................................................................................ 64 Product Certification Markings........................................................................................ 65 vii Intel Desktop Board D945PWM Product Guide viii 1 Desktop Board Features This chapter briefly describes the main features of Intel® Desktop Board D945PWM. Table 1 summarizes the major features of the desktop board. Table 1. Processor Main Memory Feature Summary ATX (12.00-inches by 9.60-inches) Support for an Intel® processor in the LGA775 package · Four 240-pin, 1.8 V SDRAM Dual Inline Memory Module (DIMM) sockets · 667/533/400 MHz single or dual channel DDR2 SDRAM interface · Designed to support up to 4 GB of system memory NOTE: System resources (such as PCI and PCI Express*) require physical Form Factor memory address locations that reduce available memory addresses above 3 GB. This may result in less than 4 GB of memory being available to the operating system and applications. For the latest list of tested memory, refer to the Intel World Wide Web site at: http://support.intel.com/support/motherboards/desktop/ Chipset Intel® 945P Express Chipset consisting of: · Intel® 82945P Memory Controller Hub (MCH) with Direct Media Interface · Intel® 82801GB I/O Controller Hub (ICH7) · Serial Peripheral Interface (SPI) Flash or Firmware Hub (FWH) Audio · Intel 945P Express Chipset · Intel® High Definition Audio interface · SigmaTel* codec LAN Subsystem Expansion Capabilities 10/100 Ethernet controller with RJ-45 connector · Four PCI bus add-in card connectors · One PCI Express x16 connector · Two PCI Express x1 connectors Peripheral Interfaces · Up to eight Hi-Speed USB 2.0 ports: Four ports routed to the back panel Four ports routed to two USB headers One port routed to the back panel · Up to three IEEE 1394a ports: Two ports routed to two IEEE 1394a headers · Four Serial ATA (SATA) channels (3.0 Gb/s), via the ICH7, one device per channel · One IDE interface with ATA-66/100 support (two devices) · One diskette drive interface · One parallel port · One serial port · PS/2* keyboard and mouse ports continued 9 Intel Desktop Board D945PWM Product Guide Table 1. BIOS Feature Summary (continued) · Intel® Platform Innovation Framework for extensible firmware interface · 4 Mbit symmetrical flash memory · Support for SMBIOS · Intel® Rapid BIOS Boot · Intel® Express BIOS Update Power Management · Support for Advanced Configuration and Power Interface (ACPI) · Suspend to RAM (STR) · Wake on USB, PCI, PCI Express, PS/2, LAN, and front panel Hardware Management Hardware monitor with: · Three fan sensing inputs used to monitor fan activity · Remote diode temperature sensing · Intel® Precision Cooling Technology fan speed control · Voltage sensing to detect out of range values Related Links: For more information about Desktop Board D945PWM, including the Technical Product Specification (TPS), BIOS updates, and device drivers, go to: http://support.intel.com/support/motherboards/desktop/ Supported Operating Systems The desktop board supports the following operating systems: · Microsoft Windows* 2000 · Microsoft Windows XP Professional · Microsoft Windows XP Professional x64 Edition · Microsoft Windows XP Home · Microsoft Windows XP Media Center Edition 2005 10 Desktop Board Features Desktop Board Components Figure 1 shows the approximate location of the major components on Desktop Board D945PWM. Optical Digital Line Out (Toslink) A B C D E F T G S H R Q P O M N L K J I OM19099 Figure 1. Desktop Board D945PWM Components 11 Intel Desktop Board D945PWM Product Guide Table 2. Label A B C D E F G H I J K L M N O P Q R S T Desktop Board D945PWM Components Description Auxiliary rear chassis fan header 1 (4-pin, fan speed control) PCI Express x1 connectors Front panel audio header PCI Express x16 connector 12 V processor core voltage connector (2x2) Rear chassis fan header 1 (3-pin, fan speed control) Processor socket (LGA775) Processor fan header (4-pin, fan speed control) Main power connector (2x12) Diskette drive connector IDE connector Front chassis fan header (3-pin, fan speed control) BIOS configuration jumper block Chassis intrusion header Serial ATA connectors Front panel header Alternate power LED header Hi-speed USB 2.0 headers IEEE 1394a headers PCI bus add-in card connectors Related Links: Go to the following links for more information about: http://www.intel.com/design/motherbd · Desktop Board D945PWM http://support.intel.com/support/motherboards/desktop · · · Supported processors Audio software and utilities LAN software and drivers http://support.intel.com/support/motherboards/desktop http://www.intel.com/design/motherbd http://www.intel.com/design/motherbd 12 Desktop Board Features Processor CAUTION Failure to use the appropriate power supply (below) and/or not connecting the 12 V (2x2) power connector to the desktop board may result in damage to the board or the system may not function properly. Table 3. 05B 05A 04B or 04A Power Supply Requirements Power Supply Requirements 12V2 rating of 16 A continuous and 19 A peak current for 10 ms 12V2 rating of 13 A continuous and 16.5 A peak current for 10 ms ATX12V (version 2.0 or greater) compliant Power Supply Platform Compatibility Guide Desktop Board D945PWM supports an Intel processor in the LGA775 package. Processors are not included with the desktop board and must be purchased separately. The processor connects to the desktop board through the LGA775 socket. The supported processors list for Desktop Board D945PWM is located on the web at: http://support.intel.com/support/motherboards/desktop/ Related Links: Go to the following links or pages for more information about: · Instructions on installing or upgrading the processor, page 28 in Chapter 2 · The location of the two power connectors, page 44 in Chapter 2 13 Intel Desktop Board D945PWM Product Guide Main Memory NOTE To be fully compliant with all applicable Intel® SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. If your memory modules do not support SPD, you will see a notification to this effect on the screen at power up. The BIOS will attempt to configure the memory controller for normal operation. The desktop board supports dual or single channel memory configurations defined in Table 4. Table 4. DDR2-667 Desktop Board D945PWM Memory Configurations FSB frequency (MHz) 1066 800 533 Memory Speed (MHz) 667 667 533 533 533 533 400 400 Memory Speed DDR2-533 1066 800 533 DDR2-400 800 533 · · · · · · Four 240-pin Double Data Rate 2 (DDR2) SDRAM Dual Inline Memory Modules (DIMMs) connectors with gold plated contacts Unbuffered, non-registered single or double-sided DIMMs Serial Presence Detect (SPD) memory only Non-ECC RAM 1.8 V memory Memory configuration listed below: Up to 2.0 GB utilizing 256 Mb technology Up to 4.0 GB utilizing 512 Mb or 1 Gb technology NOTE System resources (such as PCI and PCI Express) require physical memory address locations that reduce available memory addresses above 3 GB. This may result in less than 4 GB of memory being available to the operating system and applications. Related Links: Go to the following links or pages for more information about: · The latest list of tested memory, http://support.intel.com/support/motherboards/desktop/ · SDRAM specifications, http://www.intel.com/technology/memory/ · Installing memory, page 32 in Chapter 2 14 Desktop Board Features Intel® 945P Express Chipset The Intel 945P Express Chipset consists of the following devices: · Intel 82945P Memory Controller Hub (MCH) with Digital Media Interface · Intel 82801GB I/O Controller Hub (ICH7) · Serial Peripheral Interface (SPI) Flash or Firmware Hub (FWH) Related Link: Go to the following link for more information about the Intel 945P Express Chipset: http://developer.intel.com/design/nav/pcserver.htm Graphics Subsystem Desktop Board D945PWM includes the following: · Intel 945P Express Chipset · PCI Express x16 connector for graphics expansion Audio Subsystem Desktop Board D945PWM includes a flexible 6-channel audio subsystem based on an Intel High Definition Audio codec: The audio subsystem features: · Intel 82801GB I/O Controller Hub (ICH7) · SigmaTel STAC9220 audio codec · Impedance sensing capability for jack re-tasking · S/N (signal-to-noise) ratio: 95 dB · Microphone input that supports: Stereo microphone Microphone boost The subsystem includes the following connectors: · Front panel audio connector, including functionality for: Line out Mic in · Back panel audio connectors that are configurable through the drivers of the audio devices: Line in Line out Mic in Center/LFE out Rear left and right out 15 Intel Desktop Board D945PWM Product Guide Related Links: Go to the following link or pages for more information about: · Audio drivers and utilities http://support.intel.com/support/motherboards/desktop/ · Installing the front panel audio solution, page 40 in Chapter 2 · Location of the back panel audio connectors, page 42 in Chapter 2 Input/Output (I/O) Controller The super I/O controller features the following: · Low pin count (LPC) interface · 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 systems · PS/2-style mouse and keyboard interfaces · Interface for one 1.2 MB or 1.44 MB diskette drive · Intelligent power management, including a programmable wake up event interface · PCI power management support LAN Subsystem The LAN, with the Intel 82801GB (ICH7), provides the following functions: · Support for 10/100 Ethernet LAN · Support for RJ-45 connector with status indicator LEDs · Programmable transit threshold · Configurable EEPROM that contains the MAC address LAN Subsystem Software For LAN software and drivers, refer to the D945PWM 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 port located on the back panel (see Figure 2). OM17386 Figure 2. LAN Connector LEDs 16 Desktop Board Features Table 5 describes the LED states when the board is powered up and the 10/100/1000 Gigabit Ethernet LAN subsystem is operating. Table 5. LED Green RJ-45 10/100 Ethernet LAN Connector LEDs LED State Off On Blinking Indicates LAN link is not established LAN link is established LAN activity is occurring 10 Mbits/s data rate is selected 100 Mbits/s data rate is selected Yellow Off On (steady state) Hi-Speed USB 2.0 Support NOTE Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a shielded cable that meets the requirements for a full-speed USB device. The desktop board supports up to eight USB 2.0 ports via ICH7; four ports routed to the back panel and four routed to two internal USB 2.0 headers. USB 2.0 ports are backward compatible with USB 1.1 devices. USB 1.1 devices will function normally at USB 1.1 speeds. USB 2.0 support requires both an operating system and drivers that fully support USB 2.0 transfer rates. Disabling Hi-Speed USB in the BIOS reverts all USB 2.0 ports to USB 1.1 operation. This may be required to accommodate operating systems that do not support USB 2.0. Enhanced IDE Interface The ICH7's 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: · Up to two IDE devices (such as hard drives) · ATAPI-style devices (such as CD-ROM drives) · Older PIO Mode devices · Ultra DMA-33 and ATA-66/100 protocols · Laser Servo (LS-120) drives Serial ATA The desktop board supports four Serial ATA channels (3.0 Gb/s) via ICH7, connecting one device per channel. 17 Intel Desktop Board D945PWM Product Guide Expandability The desktop board supports the following: · One PCI Express x16 add-in card · Two PCI Express x1 add-in card · Four PCI add-in cards Related Links: For information about installing the PCI Express x16 card, see page 36 in Chapter 2. BIOS The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI/PCI Express and IDE auto-configuration utilities, and the video BIOS. The BIOS is stored in the Serial Peripheral Interface (SPI) Flash or Firmware Hub. The BIOS can be entered by pressing the key at startup. The BIOS can be updated by following the instructions on page 53 in Chapter 3. Serial ATA and IDE Auto Configuration If you install a Serial ATA or IDE device (such as a hard drive) in your computer, the autoconfiguration utility in the BIOS automatically detects and configures the device for your computer. You do not need to run the BIOS Setup program after installing a Serial ATA or IDE device. You can override the auto-configuration options by specifying manual configuration in the BIOS Setup program. PCI and PCI Express Auto Configuration If you install a PCI/PCI Express add-in card in your computer, the PCI/PCI Express autoconfiguration utility in the BIOS automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that add-in card. You do not need to run the BIOS Setup program after you install a PCI/PCI Express add-in card. Security Passwords The BIOS includes security features that restrict whether the BIOS Setup program can be accessed and who can boot the computer. A supervisor password and a user password can be set for the BIOS Setup and for booting the computer, with the following restrictions: · The supervisor password gives unrestricted access to view and change all Setup options. If only the supervisor password is set, pressing at the password prompt of Setup gives the user restricted access to Setup. · If both the supervisor and user passwords are set, you must enter either the supervisor password or the user password to access Setup. Setup options are then available for viewing and changing depending on whether the supervisor or user password was entered. · Setting a user password restricts who can boot the computer. The password prompt is displayed before the computer is booted. If only the supervisor password is set, the computer boots without asking for a password. If both passwords are set, you can enter either password to boot the computer. 18 Desktop Board Features