Lenovo Aptiva Product Manual
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Lenovo Aptiva Product Manual

Lenovo Aptiva Product Manual

Product guide for aptiva 6864 machine.
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Aptiva
S Series 1G
Product Guide
Part Number: A19959-003

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Summary of Contents for Lenovo Aptiva

  • Page 1 Aptiva S Series 1G Product Guide Part Number: A19959-003...

  • Page 2: Revision History

    Revision History Revision Revision History Date -003 Final release. March 2000 † Third-party brands and trademarks are the property of their respective owners.

  • Page 3: Table Of Contents

    Contents 1 Overview ......................7 System Features ........................7 Feature Summary......................7 Controls, Indicators, and Connectors................8 Intel  Pentium  III Processor 1 GHz ................10 Intel  VC820 Motherboard..................10 Video Adapter......................10 Sound Card ........................10 Modem ........................11 Home Network Card ....................11 DVD-ROM Drive ......................11 CD-Rewriteable Drive ....................11 IBM  HelpWare  Support and Services ................12...
  • Page 4 Aptiva S Series 1G Product Guide Intel ® 82820 Memory Controller Hub (MCH) ..............31 Intel ® 82801AA I/O Controller Hub (ICH) ..............31 Intel ® 82802AB Firmware Hub (FWH)................32 Input/Output (I/O) Controller....................32 Real-Time Clock........................32 USB Support ........................33 PCI Enhanced IDE Interface ....................33 Expansion Slots........................33...
  • Page 5 Contents 5 Motherboard Technical Reference .............. 59 Motherboard Connectors.....................59 Back Panel Connectors ....................60 Midboard Connectors ....................61 Front Panel Connectors....................62 Motherboard Board Resources ...................63 Memory Map ......................63 DMA Channels ......................63 I/O Map ........................64 Interrupts ........................66 6 Installing Internal Options................67 Removing and Replacing the Side Cover ................67 Installing and Removing Adapters ..................69 Removing and Replacing the Fan Assembly ...............70 Installing and Removing Memory ..................71...
  • Page 6 Aptiva S Series 1G Product Guide Tables Table 1. Standby Current Requirements................37 Table 2. Safety Regulations ....................38 Table 3. EMC Regulations ....................39 Table 4. BIOS Setup Program Menu Bar ................45 Table 5. BIOS Setup Program Function Keys ..............46 Table 6.

  • Page 7: Overview

    1 Overview This chapter provides an overview of the IBM  Aptiva  S Series 1G system features, a description of IBM  HelpWare  Support and Services, and product warranty and notices information. System Features Feature Summary ® ®...

  • Page 8: Controls, Indicators, And Connectors

    Aptiva S Series 1G Product Guide Controls, Indicators, and Connectors Figure 1 shows the front of the system unit. DVD-ROM drive Power button CD-Rewritable drive Power on indicator Diskette drive Hard drive activity indicator Figure 1. Front Panel Features...

  • Page 9: Figure 2. Back Panel Features

    Overview Figure 2 shows the back of the system unit. A18639-001 ® Mouse connector Serial port 2 Keyboard connector Video adapter location USB connectors Sound card location Serial port 1 Modem location Parallel port Home network card location Figure 2. Back Panel Features...

  • Page 10: Intel  Pentium  Iii Processor 1 Ghz

    4x AGP graphics capability, and twice the I/O performance for an exciting new PC experience, both on and off the Internet. Chapter 2 of this manual describes the version of the VC820 motherboard used in the Aptiva system. ✏...

  • Page 11: Modem

    Overview Hollywoood-quality, 32-bit digital audio engine Modem The GVC F-1156IV controllerless PCI modem card provides: V.90 / K56Flex readiness ACPI power management compliance Data/FAX capability Host based DSVD V.80 support Home Network Card The Intel  Anypoint Home Network 10 Mbps PCI card provides: premium performance for larger home and small office networks phoneline-based home networks of up to 25 PCs 10 Mbps transfer rates ideal for large CAD and graphics files...

  • Page 12: Ibm Helpware Support And Services

    Most operating systems and software programs also come with a file named README.TXT. This is a text file that contains important information about the program. You can read README.TXT files by opening them in any text file editor on your computer. If an Aptiva README file is provided, it is named APTIVA.TXT.

  • Page 13: Using Electronic Services

    Computing Support home page is: http://www.ibm.com/pc/support From the Support home page, under Select a Brand, click the arrow, and select Aptiva & PS/1 to go to the IBM Aptiva Support page. For other countries or regions, use the following address: http://www.ibm.com/pc/xx/aptiva.html...

  • Page 14: Using Electronic Support Services

    Assistant is a tool that you can use to diagnose common technical problems. To use the IBM Online Assistant, you must first connect to the IBM Aptiva Support Web page and complete a personal profile. Use the IBM Online Assistant for troubleshooting and step-by-step solutions.

  • Page 15: 30-Day "Up And Running" Support

    You will be required to present your proof of purchase to receive service under your IBM warranty. Hardware Warranty Service If the Aptiva PC that you purchased does not function as warranted, during the period of your warranty, the IBM PC HelpCenter technical-support center will provide warranty service for IBM factory-installed hardware.
  • Page 16 Aptiva S Series 1G Product Guide By doing the following items, you will help the ICM PC HelpCenter technical-support representative handle your call, and you will help reduce the amount of time it takes to diagnose problems and answer your questions.

  • Page 17: Purchasing Additional Support

    Overview New Zealand 9 a.m. to 9 p.m. (EST - Australia), 365 days a year 0800-446-149 Norway 9 a.m. to 9 p.m. CET Monday - Friday; 12 noon to 5:30 p.m. CET 2-305-0304 Saturday and Sunday Portugal Voice mail only 01 791-5147 Spain 10 a.m.
  • Page 18 Aptiva S Series 1G Product Guide Hours of operation Cost Country Phone number United States Monday - Friday, 9 a.m. to 9 $2.99 (U.S. currency) per For installing and p.m. Eastern Time minute beginning after the first configuring in- minute...

  • Page 19: Express Maintenance

    Overview To order additional support packages, refer to the phone numbers and hours of operation in your country or region. In the Unites States and Canada, use the following part numbers when you call. Support Package U.S. part number Canadian part number Single incident EPCS1 2419720...

  • Page 20: Depot Repair

    Aptiva S Series 1G Product Guide Depot Repair Depot repair is a process for obtaining service for an eligible IBM computer that requires repair. The computer is picked up at a location you designate, delivered to the IBM repair center, repaired, and returned to you.

  • Page 21: Product Warranties And Notices

    If you have any questions, contact IBM or your reseller. Machine -- Aptiva Personal Computer Machine Type 6864 Warranty Period* -- Parts: One (1) Year; Labor: One (1) Year *Contact your place of purchase for warranty service information.
  • Page 22 Aptiva S Series 1G Product Guide you may return it to your place of purchase and your money will be refunded. The replacement may not be new, but will be in good working order. Extent of Warranty The warranty does not cover the repair or exchange of a Machine resulting from misuse, accident, modification, unsuitable physical or operating environment, improper maintenance by you, or failure caused by a product for which IBM is not responsible.
  • Page 23 Overview conversions, or upgrades involve the removal of parts and their return to IBM. A part that replaces a removed part will assume the warranty service status of the removed part. Before IBM or your reseller exchanges a Machine or part, you agree to remove all features, parts, options, alterations, and attachments not under warranty service.

  • Page 24: Part 2 -- Worldwide County-Unique Terms

    Aptiva S Series 1G Product Guide THEIR POSSIBLITY. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES., SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. Part 2 -- Worldwide County-Unique Terms ASIA PACIFIC AUSTRALIA: The IBM Warranty for Machines: The following paragraph is added to this...
  • Page 25 Overview EUROPE, MIDDLE EAST, AFRICA (EMEA) The following terms apply to all EMEA countries. The terms of this Statement of Warranty apply to Machines purchased from an IBM reseller. If you purchased this Machine from IBM, the terms and conditions of the applicable IBM agreement prevail over this warranty statement.
  • Page 26 Aptiva S Series 1G Product Guide Extent of Warranty: The second paragraph does not apply. Warranty Service: The following is added to this Section: During the warranty period, transportation for delivery of the failing Machine to IBM will be at IBM's expense.
  • Page 27 Overview SOUTH AFRICA, NAMIBIA, BOTSWANA, LESOTHO AND SWAZILAND: Limitation of Liability: The following is added to this Section: IBM's entire liability to you for actual damages arising in all situations involving nonperformance by IBM in respect of the subject matter of this Statement of Warranty will be limited to the charge paid by you for the individual Machine that is the subject of your claim from IBM.
  • Page 28 Aptiva S Series 1G Product Guide...

  • Page 29: Motherboard Features

    2 Motherboard Features Feature Summary Form Factor ATX (12.0 inches by 8.2 inches) ® ® Processor Support for Intel Pentium III processors † † Memory Two 168-pin Direct Rambus RIMM connectors Chipset ® Intel 820 chipset, consisting of: ® Intel 82820 Memory Controller Hub (MCH) ®...

  • Page 30: Components

    Aptiva S Series 1G Product Guide Components Figure 3 shows the major components on the motherboard. Audio Modem Riser connector Speaker Back panel connectors Intel 82801AA I/O Controller Hub (ICH) Wake on LAN † technology connector Processor fan connector 242-contact slot connector...

  • Page 31: Main Memory

    Motherboard Features Main Memory The motherboard has two 2.5 V memory module sockets that support RIMMs containing Direct Rambus DRAM (RDRAM) devices. When shipped, your system has one 128 MB RIMM installed in socket 0, and a CRIMM continuity module installed in socket 1. The desktop board supports the memory features: 168-pin modules with gold-plated contacts Memory bus frequency: 300 MHz/356 MHz/400 MHz...

  • Page 32: Intel ® 82802Ab Firmware Hub (Fwh)

    Aptiva S Series 1G Product Guide Support for USB General purpose I/O Power management logic Support for the System Management Bus Real-Time Clock Support for AC ’97 audio devices and modems ® Intel 82802AB Firmware Hub (FWH) The FWH has these features:...

  • Page 33: Usb Support

    Motherboard Features For more information about the year 2000 capability of systems with Intel desktop boards, see the Intel World Wide Web site: http://support.intel.com/support/year2000/index.htm USB Support The motherboard has three USB ports. You can connect three USB peripheral devices directly to the computer without an external hub.

  • Page 34: Bios

    Aptiva S Series 1G Product Guide 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 35: Power Management Features

    Motherboard Features Power Management Features Power management is implemented at several levels, including: Software support: Advanced Power Management (APM) Advanced Configuration and Power Interface (ACPI) Hardware support: Wake on LAN technology Instantly Available technology Wake on Ring Resume on Ring If the board is used with an ACPI-aware operating system, the BIOS can provide ACPI support.
  • Page 36 Aptiva S Series 1G Product Guide CR6F1 OM08849 Figure 4. Location of Standby Power Indicator 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.

  • Page 37: Standby Current Requirements

    Motherboard Features Table 1. Standby Current Requirements Instantly Available Current Description Current Requirements (mA) Support (Estimated) Standby Power Indicator LED Front Panel LED I/O Controller (LPC47M102) RS-232 Transceivers* Chipset/Memory (RDRAM)* Miscellaneous Instantly Available control logic Glue3 ASIC PCI 2.2 (5 slots + AGP)* Total 676.5 Optional Current Support...

  • Page 38: Wake On Ring

    Aptiva S Series 1G Product Guide Wake on Ring The operation of Wake on Ring can be summarized as follows: Powers up the computer from either APM soft-off mode or the ACPI S3 and S5 states. Requires two calls to access the computer: 1.

  • Page 39: Motherboard Certification Markings

    Motherboard Features Table 3. EMC Regulations Regulation Title FCC Class B Title 47 of the Code of Federal Regulations, Parts 2 and 15, Subpart B, pertaining to unintentional radiators. (USA) CISPR 22, 2 Edition, 1993 Limits and methods of measurement of Radio Interference (Class B) Characteristics of Information Technology Equipment.
  • Page 40 Aptiva S Series 1G Product Guide...

  • Page 41: Upgrading The Bios

    3 Upgrading the BIOS This chapter tells you how to: ® Upgrade the BIOS using the Intel Flash Memory Update Utility Recover the BIOS if an upgrade fails Change the BIOS language Preparing for the Upgrade Before you upgrade the BIOS, prepare by: Obtaining the BIOS upgrade file Recording the current BIOS settings Creating a bootable diskette...

  • Page 42: Record The Current Bios Settings

    Aptiva S Series 1G Product Guide Record the Current BIOS Settings 1. Boot the computer and press <F2> when you see the message: Press <F2> Key if you want to run SETUP NOTE Do not skip step 2. You will need these settings to configure your computer at the end of the upgrade procedure.

  • Page 43: Upgrading The Bios

    Upgrading the BIOS MK_BOOTZ.EXE 6. Read the LICENSE.TXT file, which contains the software license agreement, and the BIOINSTR.TXT file, which contains the instructions for the BIOS upgrade. 7. Insert the bootable diskette into drive A. 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.

  • Page 44: Recovering The Bios

    Aptiva S Series 1G Product Guide Recovering the BIOS It is unlikely that anything will interrupt the BIOS upgrade; however, if an interruption occurs, the BIOS could be damaged. The following steps explain how to recover the BIOS if an upgrade fails.

  • 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: Maintenance Menu

    Aptiva S Series 1G Product Guide Table 5 shows the function keys available for menu screens. Table 5. BIOS Setup Program Function Keys BIOS Setup Program Function Key Description < > or < > Selects a different menu screen <...

  • Page 47: Main Menu

    Using the Setup Program Main Menu This menu reports processor and memory information and is used for configuring the system date and system time. Table 7. Main Menu Feature Options Description BIOS Version No options Displays the version of the BIOS. Processor Type No options Displays processor type.

  • Page 48: Advanced Menu

    Aptiva S Series 1G Product Guide Advanced Menu This menu is used for setting advanced features that are available through the chipset. Table 8. Advanced Menu Feature Options Description Boot Configuration No options Configures Plug and Play and the Numlock key, and resets configuration data.

  • Page 49: Peripheral Configuration Submenu

    Using the Setup Program Peripheral Configuration Submenu This submenu is used for configuring the computer peripherals. Table 10. Peripheral Configuration Submenu Feature Options Description Serial Port A Disabled Configures serial port A. Enabled Auto assigns the first free COM port, normally COM1, the address 3F8h, and the interrupt IRQ4.
  • Page 50 Aptiva S Series 1G Product Guide Table 10. Peripheral Configuration Submenu (continued) Feature Options Description Parallel Port Disabled Configures the parallel port. Enabled Auto assigns LPT1 the address 378h and the interrupt IRQ7. Auto (default) An * (asterisk) displayed next to an address indicates a conflict with another device.

  • Page 51: Ide Configuration

    Using the Setup Program IDE Configuration This menu is used for configuring the IDE controller and connected IDE devices. Table 11. IDE Configuration Feature Options Description IDE Controller Disabled Specifies the integrated IDE controller. Primary enables only the Primary IDE Controller. Primary Secondary enables only the Secondary IDE Controller.

  • Page 52: Ide Configuration Submenus

    Aptiva S Series 1G Product Guide IDE Configuration Submenus This submenu is used for configuring IDE devices, including: Primary IDE master Primary IDE slave Secondary IDE master Secondary IDE slave Table 12. IDE Configuration Submenus Feature Options Description Type None Specifies the IDE configuration mode for IDE devices.

  • Page 53: Diskette Configuration Submenu

    Using the Setup Program Diskette Configuration Submenu This submenu is used for configuring the diskette drive. Table 13. Diskette Configuration Submenu Feature Options Description Diskette Controller Disabled Disables or enables the integrated diskette controller. Enabled (default) Diskette A Not Installed Specifies the capacity and physical size of diskette drive A.

  • Page 54: Video Configuration Submenu

    Aptiva S Series 1G Product Guide Video Configuration Submenu This submenu is used for configuring video features. Table 15. Video Configuration Submenu Feature Options Description AGP Aperture Size 64 MB (default) Specifies the AGP aperture size. 256 MB Primary Video Adapter AGP (default) Specifies the type of video adapter.

  • Page 55: Power Menu

    Using the Setup Program Power Menu This menu is used for setting power management features. Table 17. Power Menu Feature Options Description Power Management Disabled Enables or disables the BIOS power management feature. Enabled (default) Inactivity Timer Specifies the amount of time before the computer enters standby mode.

  • Page 56: Boot Menu

    Aptiva S Series 1G Product Guide Boot Menu This menu is used for setting the boot features and the boot sequence. Table 18. Boot Menu Feature Options Description Quiet Boot Disabled Disabled displays normal POST messages. Enabled (default) Enabled displays OEM logo instead of POST messages.

  • Page 57: Exit Menu

    Using the Setup Program Exit Menu This menu is used for exiting the BIOS Setup program, saving changes, and loading and saving defaults. Table 19. Exit Menu Feature Description Exit Saving Changes Exits and saves the changes in CMOS SRAM. Exit Discarding Changes Exits without saving any changes made in the BIOS Setup program.
  • Page 58 Aptiva S Series 1G Product Guide...

  • Page 59: Motherboard Technical Reference

    5 Motherboard Technical Reference Motherboard Connectors The motherboard’s connectors can be divided into three groups, as shown in Figure 4. Back panel connectors (see page 60) Midboard connectors (see page 61) Front panel connectors (see page 62) OM08852 Figure 4. 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 60: Back Panel Connectors

    Aptiva S Series 1G Product Guide Back Panel Connectors Figure 5 shows the back panel connectors on the desktop board. OM08853 A PS/2 mouse D Serial port A B PS/2 keyboard E Parallel port C USB ports F Serial port B...

  • Page 61: Midboard Connectors

    Motherboard Technical Reference Midboard Connectors Figure 6 shows the location of the midboard connectors. OM08854 PCI slot 5 Chassis fan PCI slot 4 Diskette drive PCI slot 3 Primary IDE PCI slot 2 Secondary IDE PCI slot 1 Wake on LAN technology Universal AGP Wake on Ring SCSI hard drive activity LED...

  • Page 62: Front Panel Connectors

    Aptiva S Series 1G Product Guide Front Panel Connectors Figure 7 shows the location of the front panel connectors. J8G2 OM08855 J8G2: Front panel connector Infrared port (not used) Reset switch (not used) Hard drive activity LED Power LED On/Off switch...

  • Page 63: Motherboard Board Resources

    Motherboard Technical Reference Motherboard Board Resources Memory Map Table 20. 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 64: I/O Map

    Aptiva S Series 1G Product Guide I/O Map Table 22. 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 65 Motherboard Technical Reference Table 22. I/O Map (continued) Address (hex) Size Description 0377, bits 6:0 7 bits Secondary IDE channel status port 0378 - 037F 8 bytes LPT 1 † 0388 - 038B 6 bytes AdLib (FM synthesizer) 03CC 1 byte Video (VGA) 03CE - 03CF 2 bytes...

  • Page 66: Interrupts

    Aptiva S Series 1G Product Guide Interrupts Table 23. 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 67: Installing Internal Options

    6 Installing Internal Options You can expand the capabilities of your computer by adding memory, drives, or adapters. Use the instructions in this chapter along with the instructions that came with the option. Removing and Replacing the Side Cover In order to access motherboard components or adapter cards, or to remove the front cover, you must first remove the side cover.
  • Page 68 Aptiva S Series 1G Product Guide ✏ NOTE Proper cooling is required for the reliable performance of internal components. Do not operate your computer with the side cover removed. With the side over removed, you can: install and remove adapters remove and replace the auxiliary fan assembly to access memory remove and replace the front cover to install and remove internal drives.

  • Page 69: Installing And Removing Adapters

    Installing Internal Options Installing and Removing Adapters When the side cover is removed, you can install and remove adapters. Your system's motherboard has five expansion slots that support the peripheral component interconnect (PCI) architecture, as shown in Figure 3. When your system was delivered, three of these PCI slots were occupied, by the sound card, the LAN adapter, and the modem.

  • Page 70: Removing And Replacing The Fan Assembly

    Aptiva S Series 1G Product Guide 4. Perform any additional installation tasks specified in the adapter documentation. Removing an adapter is the reverse of installing it. Note that if you remove an adapter and you do not replace it with another one, you must install an I/O slot cover on the back of the chassis to ensure that your system continues to cool itself appropriately when it is running.

  • Page 71: Installing And Removing Memory

    Installing Internal Options CAUTION Do not attempt to operate the system without the auxiliary fan. Operating the system without the auxiliary fan assembly will cause it to overheat, resulting in damage to vital components. Installing and Removing Memory To install or remove memory, must must first remove the side cover and auxiliary fan. For maximum access to memory, you can also remove the auxiliary fan bracket.

  • Page 72: How To Remove Memory

    Aptiva S Series 1G Product Guide To install the memory modules, follow these steps: 1. Ensure that the safety precautions stated for removing the side cover and auxiliary fan assembly have been observed. 2. Holding the memory module by the edges, remove it from its antistatic package.

  • Page 73: Replacing The Battery

    Installing Internal Options Replacing the Battery To replace the battery, you must first remove the side cover. When your computer is turned off, a lithium battery maintains the current time-of-day clock and the values in CMOS RAM current. Figure 12 shows the location of the battery. The battery should last about seven years.

  • Page 74: Setting The Bios Configuration Jumper

    Aptiva S Series 1G Product Guide ✏ NOTES If your local ordinances permit, you may dispose of individual batteries as normal trash. Do not expose batteries to excessive heat or fire. Keep all batteries away from children. When the system is turned on for the first time after battery replacement, an error message might be displayed.

  • Page 75: Clearing Passwords

    Installing Internal Options Clearing Passwords This procedure assumes that the configuration jumper block is set to normal mode. 1. Turn off all peripheral devices connected to the computer. Turn off the computer. Disconnect the power cord from the AC power source (wall outlet or power adapter). 2.

  • Page 76: Installing Internal Drives

    Aptiva S Series 1G Product Guide Installing Internal Drives To install an internal drive, you must first remove the side cover and then remove the front cover. To remove the front cover: 1. Push the plastic locking tabs (visible at the front corner of the system with the side cover removed) inward.

  • Page 77: Figure 15. Installing An Internal Drive

    Installing Internal Options To install an external-access drive in the lower 3.5" bay: 1. Remove the cover plate from the empty drive bay. 2. Insert the new drive on its mounting rails (lower 3.5" external-access drive bay only). 3. Remove the filler panel from the front cover. 4.
  • Page 78 Aptiva S Series 1G Product Guide...

  • Page 79: A Post Error Messages And Indicators

    A POST Error Messages and Indicators The motherboard reports POST errors in two ways: By sounding a beep code By displaying an error message on the monitor BIOS Beep Codes The BIOS beep codes are listed in Table 25. 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 80: Bios Error Messages

    Aptiva S Series 1G Product Guide BIOS Error Messages When a recoverable error occurs during the POST, the BIOS displays an error message describing the problem. Table 26. BIOS Error Messages Error Message Explanation GA20 Error An error occurred with Gate-A20 when switching to protected mode during the memory test.
  • Page 81 BIOS Error Messages Table 26. 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.

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