PCchips M596 Manual 

carefully checked for reliability; however, no responsibility is assumed for inaccuracies. Specifications are subject to change without notice. Trademarks PS/2,OS/2,IBM,PC/AT, and PC/XT are trademarks of International Business Machines Corporation. Intel and Pentium are trademarks of Intel Corporation. AMD is a trademark of Advanced Micro Devices Inc. Cyrix is a trademarks of Cyrix Corporation. IDT is a trademark of Integrated Devices Technology Corporation. AMI is a trademark of American Megatrends Inc. MS-DOS and Windows 95/98/NT are registered trademarks of Microsoft Corporation PC-cillin and ChipAwayVirus are trademarks of Trend Micro, Inc. Copy right (C) 1998. All Rights Reserved. M596, Version 1.3 October 1998

4 Chapter 1: Introduction ....................................................................... 5 Key Features ..................................................................................... 6 Unpacking the Mainboard & Static Electricity Precautions ............... 8 Chapter2: Hardware Configuration .................................................... 9 Mainboard Component Locations .................................................... 10 Connectors ...................................................................................... 10 CN7 - ATX Style Power Connector ............................................. 11 Software Power-Off .................................................................... 11 Modem Ring Power-On .............................................................. 11 CN11(PWRSW) - Power Button Connector ................................ 12 CN10 - VGA Connector ............................................................. 12 External Connectors Location .................................................... 12 CN8 - Floppy Disk Port .............................................................. 12 IDE1/IDE2 - Primary/Secondary IDE Ports ................................ 12 CN11(PWRLED & K-LOCK) - Power LED & Keylock Connector .................................................................................. 13 CN11(SPK) - Speaker Connector ................................................ 13 CN11(TB LED) - Turbo LED Connector .................................... 13 CN11(HDD LED) - HDD LED Connector .................................. 13 CN11(RST) - Reset Switch Connector ........................................ 14 JP4 - Infrared Connector ............................................................ 14 J1 - Fan Power Connector .......................................................... 14 Sound Pro Connectors ..................................................................... 15 J2/J3 - Analog Audio from CD-ROM ......................................... 15 Sound and Game(on the External Connectors) ........................... 15 JP6 - Digital Audio IN ............................................................... 15 JP5 - Digital Audio OUT ............................................................ 15 ii Contents

Jumper Settings ............................................................................... 17 JP8 - CMOS RAM Clear Selector ............................................... 17 JP1 - DIMM Voltage Selectors .................................................... 17 JP7 - Onboard Sound Selector .................................................... 17 Memory Installation ........................................................................ 18 Chapter3: BIOS Setup ....................................................................... 19 Entering BIOS Setup........................................................................ 20 Default............................................................................................. 20 Load Optimal Settings................................................................. 20 Load Best Performance Settings.................................................. 21 BIOS Setup...................................................................................... 21 Standard CMOS Setup................................................................ 21 Advanced CMOS Setup............................................................... 22 Advanced Chipset Setup.............................................................. 24 Power Management Setup........................................................... 25 PCI / Plug and Play Setup........................................................... 27 Peripheral Setup.......................................................................... 29 CPU Plug and Play Setup............................................................ 30 Change Supervisor Password....................................................... 31 Auto-Detect Hard Disks.............................................................. 31 Save Settings and Exit................................................................. 31 Exit Without Saving.................................................................... 31 iii

Normal mode before use. The shipped mainboard is set to Clear CMOS that will be not boot up the system. See CMOS Clear Selector in Jumper Settings section!

based on the advanced Pentiumª microprocessor and featuring PCI Local Bus and the high-end chipset. The mainboard offers a high degree of flexibility in configuration and is fully IBM PC/AT compatible.

Supports P54C/P55C (MMX) Pentium® CPUs and Cyrix/IBM 6x86L/6x86MX/MII, AMD K6/K6-2, IDT C6 CPUs with Frequency at 50/55/60/66/75 MHz. Provides CPU Plug and Play feature for faster and easier CPU installation. Provides 2 DIMMs for SDRAM/EDO/FP memory modules. Supports a maximum size of 512MB system memory. Onboard 64-bit 512KB L2 cache. Provides 3 PCI and 1 ISA slots, supports 5V PCI bus Interface. Onboard 2 channel IDE, - maximum four IDE devices support. - supports PIO, PCI Bus Master and Ultra DMA/33 operation modes. Provides ATX power connectors and features of ATX power, - Power Button Power On. - Modem Wake Up. Onboard 64-bit VGA Graphics Accelerator, - high performance 64-bit GUI accelerator with excellent video playback capability. - system memory shares up to 4MB with frame buffer. - high resolution graphic modes up to 1024x768. Key Features 6 Chapter 1

- supports both Sound Blaster 16/Pro and Windows Sound System. - supports HRTF 3D Positional Audio technology. - provides drivers for Windows Direct Sound 3D. - provides drivers for 3D games that use Aureal software interface. - Digital Audio Interface(SPDIF) IN/OUT. - Software Wave-table Synthesizer. - full Duplex 16-bits CODEC with filters. - Stereo Mixer supports analog mixing from CD-Audio, Line-In, and digital mixing from voice, FM/Wave-table and digital CD- Audio. Onboard Multi-I/O and Peripheral interface, include: - 1 floppy port with 1 Mb/s transfer rate. - 2 serial ports with 16550 compatible Fast UART. - 1 parallel port with EPP and ECP capabilities. - 2 USB ports & PS/2 keyboard/mouse ports. - 1 IR interface. Onboard 2M Flash ROM supports complete ACPI and Legacy PMU and is fully compatible with PC97 and PC98. BIOS provides Plug & Play function which detects the peripheral devices and expansion cards automatically. Supports Trend’s ChipAwayVirus option to ensure the entire boot process is virus free, no installation and configuration worries. Bundled PC-cillin98 (OEM) provides automatic virus protection for Windows 95/98 and the Internet. Dimension: Micro ATX Form Factor, 24.4cm(L) x 19cm(W). Introduction 7

1. The mainboard & device driver 2. This user's guide 3. SPDIF/IN cable 4. AT cables 5. VGA cable/bracket The mainboard is easily damaged by static electricity. Follow the precautions below while unpacking or installing the mainboard. 1. Do not remove the mainboard from its original package until you are ready to install it. 2. Frequently ground yourself to discharge any static electric charge that may build up in your body while working on installation and/or configuration. For example, you may ground yourself by grasping an unpainted portion of the system's metal chassis. 3. Remove the mainboard from its anti-static packaging and place it on a grounded surface, component side up. 4. Handle the mainboard by its edges or by the mounting bracket to avoid touching its components. 5. Check the mainboard for damage. If any integrated circuit appears loose, press carefully to seat it firmly in its socket. 6. Do not apply power if the mainboard appears damaged. If there is damage to the board contact your dealer immediately. Unpacking & Static Electricity Precautions

chassis, you may find it convenient to first configure the mainboardÕs hardware. This chapter describes how to set jumpers and install memory modules, and where to attach components.

Figure 2-1. Mainboard Component locations PCI -1 1 1 1 1 1 1 SPK PWRLED K-LOCK TB LED HDD LED CN11 JP5 PCI -2 PCI -3 PS/2-KBD PS/2-Mouse USB(T) USB(B) Chipset BIOS DIMM1 3.3V G 12V 5V DIMM2 JP8 J1 Sound Line out Line in MIC GAME1 IDE1 IDE2 COM2 COM1 PRN1 1 1 JP1 JP4 JP7 CN10 JP2 Socket 7 I/O J3 J2 JP6 1 RST PWR SW 1 Connectors Note: Make sure that the power is turned off before making any connection to the board. Attach system components and case devices to the mainboard via the mainboard connectors. A description of each connector follows. See Figure 2-1 for the location of the connectors on the mainboard. CN8 CN7 1

The ATX power supply provides a single 20-pin connector. Pin Description Pin Description 1 3.3V 11 3.3V 2 3.3V 12 Ð12V 3 Ground 13 Ground 4 +5V 14 PS-ON 5 Ground 15 Ground 6 +5V 16 Ground 7 Ground 17 Ground 8 Power OK 18 Ð5V 9 5VSB 19 +5V 10 +12V 20 +5V Software Power-Off Follow the steps below to use the ÒSoftware Power-Off ControlÓ function in Windows 95/98. 1. Click the START button on the Windows 95/98 task bar. 2. Select Shut Down The Computer to turn off the computer. The message ÒIt is now safe to turn off your computer.Ó will not be shown when using this function. Modem Ring Power-On While in Soft-off/Suspend state, if an external modem ring-up signal occurs, the system wakes up and can be remotely accessed. Make sure that the IRQ3 (COM2) option in the Power Management Setup menu is set to

CN8 - Floppy Disk Port IDE1/IDE2 - Primary/Secondary IDE Ports 1 2 3 4 9 10 11 12 R G B NC Vcc Ground NC DDC DATA Pin Signals Signals Pin Monitor and the Ring Active option is set to Enabled in the BIOS setup section (Refer to the Power Management section in Chapter 3.) CN11(PWRSW) - Power Button Connector When the system is off, push the power button to turn the system on. When the system is on, push the power button to turn the system completely off. Pin Signals 5 6 7 8 Ground Ground Ground Ground Signals Pin 13 14 15 H SYNC V SYNC DDC CLK Side View Parallel(printer) port (25-pin Female) Game port Sound ports MIC PS/2 Mouse (6-pin Female) PS/2 Keyboard (6-pin Female) Serial Ports (9-pin Male) Line out Line in USB PRN COM1 COM2 External Connectors Location

Keylock Connector CN11(TB LED) -Turbo LED Connector + Anode Ground Pin Description _ CN11(SPK) - Speaker Connector 1 2 3 4 +5v Ground Ground Data Out Pin Description CN11(HDD LED) - HDD LED Connector +_ +5V Active Low Pin Description

1 2 3 N.C. +12V Ground Pin CN11(RST) - Reset Switch Connector � Attach the Reset push button cable to this connector. Normal Mode Reset System Open Close Setting Description 1 2 3 4 5 +5 VDC Reserved IR In Ground IR Out Pin Signals JP4 - Infrared Connector Signals CN11(PWRBT) - Power Button Connector � Refer to Page 12.

J2/J3 - Analog Audio from CD-ROM Connect to "AUDIO" port of the CD-ROM drive. For Panasonic or compatible type of CD-ROM, connect to J2 (signals assignment G-L-G-R). For Sony or compatible type of CD-ROM, connect to J3(signals assignment L-G-G-R). Sound and Game(on the External Connectors) Mainboard provides Line-IN, MIC(microphone), Line-OUT (speaker) audio jack and Game port(which is also used as the Joystic/MIDI port) connector. Side View Game port Sound ports MIC Line out Line in JP6 - Digital Audio IN Connect to "DIGITAL AUDIO" port of the CD-ROM drive by using the SPDIF/IN cable, which gives you the non- distortion digital audio from CD-ROM. Connect to pin1 & pin2 for 5V device, connect to pin3 & pin2 for 0.5V device. JP5 - Digital Audio OUT Connect to the external Audio Amplifier or Mini-Disk by using optional SPDIF/OUT bracket/cable set, selectable output signal level depends on the device need. Connect to pin1 & pin2 for 5V device, connect to pin3 & pin2 for 0.5V device. 15 Hardware Configuration

� application � 1. Before you install the Sound Pro drivers, make sure your � Operating System has been installed, otherwise the Sound � Pro might be detect as "Other Device" by the device � manager of your OS. � 2. After the drivers install, select MULTIMEDIA icon � within CONTROL PANEL. Select WSS(Windows Sound � System) as the equipment while playback, and select the � SB16(Sound Blaster 16) as the equipment while recording, � then click "OK" to confirm, thus ensure the chip to work � with full duplex applications. � 3. If you wants to use Software Wave-Table drivers as � MIDI output device, select MULTIMEDIA icon within � CONTROL PANEL. Select MIDI page, and click on � "SoftMidi Driver" then click "OK" to confirm. � 4. A Windows application named Audio Rack is provided � within Sound Pro drivers, which gives you control over all � audio functions through a user interface as simple to use a � home stereo system, we recommended you to use the � System Mixer within Audio Rack to control the volume, � recording device select and recording gain. � 5. If you using devices that use Midi port as the control � interface, you need to enable the "MPU-401 MIDI" � through the MIDI device setting of Sound Pro Audio Rack. � 6. See details of Sound Pro manual within the CD attached � with the mainboard. Chapter 2 16

1 3 Setting Description Normal Mode Clear CMOS (while shiping) 1 3 JP1 - DIMM Voltage Selectors 5V 3.3V Setting Voltage 5V 3.3V 5V 3.3V JP7 - Onboard Sound Selector 17 Hardware Configuration 1 Setting Description Disabled Enabled (default) 1

memory. Two DIMM sockets are divided into two banks: Bank 0, Bank 1. The mainboard supports the following memory configurations. Memory Installation 18 Chapter 2 Notes: 1.� The speed of all DIMM modules have to be faster t han 70 ns. � 2.� The DRAM must be installed in DIMM1 first, if onboard VGA � � is being used. � � � � � Bank Memory Module Bank 0 DIMM1� 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, 256MB Bank 1 DIMM2� 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, 256MB System Memory = � Bank 0 + Bank 1

BIOS setup program. The setup program provided with the mainboard is the BIOS from AMI. After you have configured the mainboard and have assembled the components, turn on the computer and run the software setup to ensure that the system information is correct. The software setup of the system board is achieved through Basic Input-Output System (BIOS) programming. You use the BIOS setup program to tell the operating system what type of devices are connected to your system board. The system setup is also called CMOS setup. Normally, you need to run system setup if either the hardware is not identical with information contained in the CMOS RAM, or if the CMOS RAM has lost power. Note: When installing newer BIOS into this mainboard, JP8 must be set to clear CMOS position for a moment then set back to Normal Mode or hold down the key then power on to reboot the system.

To enter the BIOS Setup program: 1. Turn on or reboot the system. A screen appears with a series of diagnostic checks. 2. When “Hit if you want to run SETUP” appears, press the key to enter the BIOS setup program. The following screen appears: Standard CMOS setup for changing time, date, hard disk type, etc. AMIBIOS SIMPLE SETUP UTILITY - VERSION 1.1X (C)1998 American megatrends, Inc. All Rights Reserved Standard CMOS Setup Advanced CMOS Setup Advanced Chipset Setup Power Management Setup PCI/Plug and Play Setup Load Optimal Settings Load Best Performance Settings Peripheral Setup CPU Plug and Play Setup Change Supervisor Password Auto-Detect Hard Disks Save Settings and Exit Exit Without Saving Esc: Quit ↑ ↓ → ←: Select Item (Shift) F2: Change Color F5: Old Values F6: Optimal values F7: Best performance values F10 : Save&Exit 3. Use your keyboard to choose options. Modify system parameters to reflect system options. Press Alt-H for Help. Default Every option in the BIOS Setup contains two default values: Best default and the Optimal default value. Load Optimal Settings The Optimal default values provide optimum system settings for all devices and system features.

This option provides the best performance settings for all devices and system features, but, the manufacturer is not guaranty that the system will run smoothly overnight for these devices. BIOS Setup Standard CMOS Setup Choosing the Standard CMOS Setup from the BIOS Setup main menu. All Standard Setup options are described in this section. Date/Time Select the Date or Time option to change the date or time. The current date and time are displayed. Enter new values on proper position. Pri Master Pri Slave Sec Master Sec Slave Choose these options to configure the hard disk drive named in the option. When you click on an option, the following parameters are listed: Type, LBA Mode, Blk Mode, PIO Mode, and 32Bit Mode. All parameters relate to IDE drives except Type. Choose the Type parameter and select Auto BIOS automatically detects the IDE drive parameters and displays them. Choose on LBA Mode and choose On to enable support for IDE drives with capacities greater than 528MB. Click on Blk Mode and choose On to support IDE drives that use Blk Mode. Click on 32Bit Mode and click on On to support IDE drives that permit 32-bit accesses.

specify the floppy drive type. The settings are 360KB 51/4", 1.2MB 51/4", 720KB 31/2", 1.44MB 31/2", or 2.88MB 31/2". Advanced CMOS Setup Choosing the Advanced CMOS Setup from the BIOS Setup main menu. All Advanced Setup options are described in this section. 1st Boot Device 2nd Boot Device 3rd Boot Device 4th Boot Device Set these options to select the boot sequence from different booting devices. Try Other Boot Devices Set this option to enable other booting devices. Quick Boot Select this option to Enabled to permit BIOS to boot within 5 seconds.

When this option is set to On, BIOS turns off the Num Lock key when the system is powered on so the end user can use the arrow keys on both the numeric keypad and the keyboard. Floppy Drive Swap Set this option to Enabled to specify that floppy drives A: and B: are swapped. Floppy Drive Seek Choose Enabled or Disabled. Disabled provides a fast boot and reduces the possibility of damaging the heads. PS/2 Mouse Support When this option is set to Enabled, BIOS supports a PS/2-type mouse. Boot To OS/2 You need to set this option to Enabled when using the OS/2 operating system with installed DRAM which is greater than 64MB. Password Check This option specifies the type of BIOS password protection that is implemented. The settings are: Setup: The password prompt appears only when an end user attempts to run BIOS Setup. Always: A password prompt appears every time the computer is powered on or rebooted. The BIOS password does not have to be enabled. The end user sets the password by choosing the Change Supervisor Password option on the BIOS Setup main menu. Internal Cache This option selects to enable the internal cache or not.

This option selects to enable ExternalCache � or not. System BIOS� BIOS always copies the system BIOS from Cacheable� ROM to RAM for faster execution. Set this � option to Enabled to permit the contents of � the F0000h RAM memory segment to be � written to and read from cache memory. C000, 16K Shadow;�Enabled: The contents of the ROM areaare C400, 16K Shadow;��� not only copied from ROMto RAM C800, 16K Shadow;��� for faster execution, thecontents of CC00, 16K Shadow;� the RAM area canbe written to or D000, 16K Shadow;�� read from cachememory. D400, 16K Shadow;�Cached: The contents of the ROM areaare D800, 16K Shadow;�� copied from ROM to RAMfor DC00, 16K Shadow�� faster execution. Advanced Chipset Setup � Choose the Advanced Chipset Setup from the BIOSSetup � main menu. All Chipset Setup options are thendisplayed � and are described in the following section. Trend ChipAway� Set this option to Enabled the ChipAwayVirus Virus� function. DRAM Auto� Set this option to enable the Auto Configuration� ConfigurationDRAM Timing and Refresh � Cycle Time by CPU CLK functions. SDRAM Access� There are 3 optional timings for this item: Time� 10ns, 12ns, 15ns. Depends on the type of � SDRAM you use to select the propersetting.

Time Choose either 60ns or 70ns. Depends on the type of DRAM you use to select the proper setting. MEMORY HOLE Set this option to Enabled Memory Hole at at 15M - 16M 15 MB ~ 16 MB memory address, that will be permit the memory management program under legacy operating system (ex. DOS) to control the block memory at 15 MB ~ 16 MB . USB Function Set this option to Enabled to enable USB functions on Chipset. USB Legacy Support Set this option to Enabled to enable the system BIOS USB functions for DOS. OnBoard VGA Set this option to Enabled to enable the VGA feature on the chipset. VGA Shared Memory Size When OnBoard VGA is set to Enabled, the system must share memory with VGA. VGA Frequency Choose 55MHz for Fast Page Mode DRAM and 65MHz for EDO DRAM. VGA Read Wait Set this option to Enabled the Wait State for State VGA Read. Power Management Setup Choosing the Power Management Setup from the BIOS Setup main menu.

features and APM (Advanced Power Management). Green PC Monitor Power State This option specifies the power state that the green PC-compliant video monitor enters when BIOS places it in a power savings state after the specified period of display inactivity has expired. Video Power Down Mode This option specifies the power conserving state that the VESA VGA video subsystem enters after the specified period of display inactivity has expired. Hard Disk Power Down Mode This option specifies the power conserving state that the hard disk drive enters after the specified period of hard drive inactivity has expired. Standby Time out (Minute) This option specified the length of system inactivity while in Full power on state. When this length of time expires, the computer enters Standby power state. Suspend Time out (Minute) This option specified the length of a period of system inactivity while in Standby state. When this length of time expires, the computer enters Suspend power state. Slow Clock Ratio This option specifies the ratio of system clock while in standby state.

IRQ4(COM1/COM3);� the event monitoring on the specified IRQ5 (LPT2);IRQ7� hardware interrupt request line. If set to (LPT1);IRQ9; IRQ10; �Monitor and the computer is in a power IRQ11; IRQ12 (PS2� saving state, BIOS watches for any Mouse);IRQ13(Math� activities on the specified IRQ line. The Coprocessor);IRQ14; � computer will enter the full on power IRQ15� state if any activity occurs. Ring Resume From �Set this option to enable the Modem Ring to Soft Off� wake up the system which is in the Green � mode.���� ���� PCI/PnP Setup � Choose the PCI/Plug and Play Setup from the BIOSSetup � main menu. Plug and Play� Set this option to Yes if the operation system Aware OS� in this computer is aware of and follows the � Plug and Play specification. Currently, only � Windows 95/98 are PnP-aware. Clear NVRAM � Set this option to Yes to clear NVRAM. PCI Latency TimerThis option specifies the latency timings (in � PCI clocks) for all PCI devices on the PCI bus. PCI VGA Palette� When this option is set to Enabled, multiple Snoop� VGA devices operating on different buses can � handle data from the CPU on each set of � palette registers on every video device. PCI IDE Bus� Set this option to Enabled bus master for the Master � PCI IDE. BIOS Setup

Card This option specifies if an offboard PCI IDE controller adapter card is installed in the computer. You must specify the PCI expansion slot on the motherboard where the offboard PCI IDE controller is installed. If an offboard PCI IDE controller is used, the onboard IDE controller is automatically disabled. If an offboard PCI IDE controller adapter card is installed in the computer, you must also set the Offboard PCI IDE Primary IRQ and Offboard PCI IDE Secondary IRQ options. PCI IDE Primary IRQ; PCI IDE Secondary IRQ These options specify the PCI interrupt used by the Primary (or secondary) IDE channel on the offboard PCI IDE controller. Assign IRQ to PCI VGA Card Set this option to Enabled to assign IRQ to PCI VGA Card. PCI Slot 1/2/3 IRQ Priority; These options specify the priority IRQ to be used for any PCI devices installed in PCI expansion slots 1 through 4. DMA Channel 0, 1, 3, 5, 6, 7 These options specify the bus that the specified DMA channel is used on. IRQ3, 4, 5, 7, 9, 10, 11, 12, 14, 15 These options specify the bus that the specified IRQ line is used on. These options allow you to reserve IRQs for legacy ISA adapter cards. However, IRQ12 option will be disappeared while PS/2 Mouse Support option in the Advanced CMOS Setup is set to Enabled.

Size, Address� size and started address for the IO card. Peripheral Setup � Choose this Setup item from the BIOS Setup main menu. Onboard FDC � This option enables the FDC (Floppy Drive � Controller) on the motherboard. Serial Port1 � This option specifies the base I/O port � address of serial port 1. Serial Port2 � This option specifies the base I/O port � address of serial port 2. OnBoard Ir Port � Set this option to Enabled the IR port. Ir Mode; Ir Duplex�Set these option to select the type of IR � module. On-board Parallel� This option specifies the base I/O port address Port� of the parallel port on themotherboard. Parallel Port Mode�This option specifies the parallel port mode. � Normal: The normal parallel port mode is � � used. � EPP: � The parallel port can be used with � � devices that adhere to the � � Enhanced Parallel Port (EPP) � � specification. EPP uses the existing � � parallel port signals to provide � � asymmetric bi-directional data � � transfer driven by the host device.���� BIOS Setup

(Continued) � � that adhere to the Extended Capabilities � � Port(ECP) specification. ECP uses the � � DMA protocol to achieve data transfer � � rates up to 2.5MB per second. ECP � � provides symmetric bidirectional � � communication. Parallel Port IRQ � This option specifies IRQ to parallel port. Parallel Port DMA This option is only available if the setting of the Channel Parallel Port Mode option is ECP Onboard PCI IDE This option specifies the channel used by the IDE � controller on the motherboard. Pri. Master/Slave These options are available if the setting of the Prefetch; � Onboard IDE is not set to Disabled. Sec. Master/Slave Prefetch CPU Plug and Play �Choose this Setup item from the BIOS Setup main menu. CPU Plug and Play�Set this option to select CPU Plug and Play by Auto � or Manual. Processor Name � This option was displayed only show the CPU name. CPU Core Voltage; Set these options to select CPU Core Voltage/ CPU Frequency � Frequency ratio/external Frequency to match your Ratio;� CPU when CPU Plug and Play option is set to CPU External � Manual. Frequency

Change Supervisor Password This item lets you configure the system password which is required every time when the system boots up or an attempt is made to enter the Setup program. The password cannot be longer than six characters. Note: Keep a safe record of the new password. If you forget or lose the password, the only way to access the system is to clear CMOS memory by holding down the key then powering on to reboot the system. Auto-Detect Hard Disks If your system has an IDE hard drive, you can use this utility to detect its parameters and automatically enter them into the Standard CMOS Setup. This utility will autodetect up to four IDE devices. Save Settings and Exit Select this item to save the values entered during the current session and then exit the BIOS setup program. Exit Without Saving Select this item to exit the BIOS setup program without saving the values which has been entered during the current session.