BCM SQ576 User Manual
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BCM SQ576 User Manual

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SQ576 Pentium PCI
Mainboard
User's Manual

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Summary of Contents for BCM SQ576

  • Page 1 SQ576 Pentium PCI Mainboard User’s Manual...
  • Page 3 User‘s Notice Static Electricity Precaution Static electricity can easily damage your SQ576 mainboard. Observing a few basic precautions can help you safeguard against damage that could result in expensive repairs. Follow the simple measures below to protect your equipment from static electricity damage: Keep the mainboard and other system components in their anti-static packaging until you are ready to install them.
  • Page 4 This device complies with Part 15 of 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. SQ576...

  • Page 5: Table Of Contents

    TANDARD ETUP BIOS F ............4-8 EATURES ETUP ............. 4-11 HIPSET EATURES ETUP ..........4-12 OWER ANAGEMENT ETUP PCI C ..........4-15 ONFIGURATION ETUP ............ 4-17 NTEGRATED PERIPHERALS IDE HDD A ............4-19 ETECTION 4.10 ..............4-19 ASSWORD ETTING SQ576...

  • Page 7: Introduction

    AT form factor chassis. The design supports Pentium processors, Pentium processors with MMX technology, Cyrix 6X86/6X86L/M2 Processors, and AMD K5/K6 Processors. Page 2-2 illustrates the mechanical form factor for the SQ576 mainboard.

  • Page 9: Key Features

    Key Features The SQ576 mainboard integrates the Pentium microprocessor, memory, and I/O technologies and is designed to fit into a standard AT form factor chassis. Page 2-2 illustrates the mechanical form factor for the SQ576 mainboard. Product Specification „ Processor: Supports 90-233MHz Intel Pentium Processors (P54C), Pentium Processors with MMX Technology (P55C), AMD-K5, AMD-K6 and Cyrix 6X86, 6X86L, M2 Processors.

  • Page 10: Mainboard Layout

    Mainboard Layout PS/2 mouse SMC935 header (J1) Power Conn. PIIX4 JP10 Clock MTXC IRDA connector (J23) SUSPEND HDD LED TURBO RESET SUSPEND SPEAKER SQ576...

  • Page 11: Installation Preview

    Installation Preview Before you install the SQ576 mainboard into the system chassis you may find it convenient to first configure the mainboard hardware. This section describes how to configure the jumper settings, install memory modules, and how to attach the various system components. Before...
  • Page 12 Processor Voltage Setting (JP4, JP5, JP10) The Pentium P55C, Cyrix 6x86L/M2 and AMD-K6 processors have various voltage choices depending on the CPU speed and the bin grade. These jumpers provide a way to select the different types of voltage . SQ576...
  • Page 13 CLOCK GEN or it will cause the system to malfunction. For example, setting a 90MHz CPU to run at 133MHz will cause the system to malfunction. Intel CPU Settings 90MHz (60MHz x 1.5) 100Mhz (66MHz x 1.5) «(Manufacturer default) SQ576...
  • Page 14 180MHz (60MHz x 3) 200MHz (66MHz x 3) 233MHz (66MHz x 3.5) Cyrix 6x86/M2 Settings 110MHz (=P133+) (50MHz x 2) 120MHz (=P150+) (60MHz x 2) 133MHz (=P166+) (66MHz x 2) M2-150 (60MHz x 2.5) M2-166 (66MHz x 2.5) M2-180 (60MHz x 3) M2-200 (66MHz x 3) AMD-K5 Settings...

  • Page 15: Installation Of Dram Modules (Simm Or Dimm)

    Please pay attention to the following restrictions : You must use one pair of sockets at a time in sequence ( i.e. SIMM1 and SIMM2, or all four sockets at once). SQ576...
  • Page 16 48MB 8MBx2 16MBx2 80Mb 8MBx2 32MBx2 40MB 16MBx2 4MBx2 48MB 16MBx2 8MBx2 64MB 16MBx2 16MBx2 96MB 16MBx2 32MBx2 72MB 32MBx2 4MBx2 80MB 32MBx2 8MBx2 96MB 32MBx2 16MBx2 128MB 32MBx2 32MBx2 128MB 64MBx2 None 128MB None 64MBx2 256MB 64MBx2 64MBx2 SQ576...
  • Page 17 3.2.4 DIMM (Dual Inline Memory Modules) The SQ576 mainboard features two 168-pin DIMM sockets with each supporting 8MB to 64MB of SDRAM/EDO using 1MBx64, 2MBx64, 4MBx64 and 8MBx64 DIMM (Asymmetrical single and double sided). The DRAM interfaces on a 64-bit wide, data path.
  • Page 18 DIMM sockets at a 90 degree angle. Pin1 of the DIMM must match with pin 1 of the DIMM socket. The module will only insert into the socket one way. An orientation cut-out will prevent you from inserting it the wrong way. SQ576...

  • Page 19: Installation Of The Cpu

    Installation of the CPU The SQ576 comes with a 321-pin ZIF socket 7 for installing the CPU. The Socket 7 will also support future Pentium up-grade processors. It is strongly recommended that a heatsink and CPU cooling fan be used to prevent the CPU from overheating. (Tip) Applying a thermal jelly between the CPU and the heatsink/fan will cool the CPU.

  • Page 20: Installation Of Expansion Slots

    3.4.2 Installation Procedure: The SQ576 has 7 expansion slots on-board. Three are 16-bit ISA Bus expansion connectors and four are 32-bit PCI expansion slots. One of the expansion slots is shared by the connectors and will accommodate either an ISA or a PCI expansion card, but not both at the same time.
  • Page 21 The FDC sub-system can control three types (1.2, 1.44, and 2.88MB) of floppy drivers or compatible tape drives. Connection to floppy drives is via a header (J6). The floppy disk interface includes 48mA drivers and Schmit inputs on the drive interface. 3-11 SQ576...
  • Page 22 3.5.4 Universal Serial Bus (USB) (J13 and J14) This SQ576 mainboard has two USB on-board header. USB devices provide a more convenient operating environment and improve data transferring capacity. True Plug-and- Play, this new bus technology will support over 127 different peripherals through a Hub.
  • Page 23 Signal Name LED+ No Connect LED- Keylock Ground 3.5.7 HDD LED Connector (4-pin) The SQ576 supports one straight 4 pin header for connecting to front pannel Hard Disk activity LED indicator. Signal Name LED+ LED- LED- LED+ 3.5.8 Reset Switch Connector (2-pin) This connector supports the front pannel case-mounted reset.
  • Page 24 Speaker- 3.5.12 IrDA connector (6-pin) (J23) The SQ576 mainboard offers an IrDA function. The case must reserve space for the IR module if you want to use the IrDA function. This connector supports optional wireless transmission and reception of infrared data. The module mounts in a small opening on the system case that supports this feature.
  • Page 25 Ground SLCTt 3.5.15 Serial Port (J12/J13) The SQ576 has two serial ports. The electrical characteristics are compliant with the EIA- 232-D Serial Communications Specifications. The serial ports may be remapped above other installable serial ports or disabled through the BIOS.

  • Page 27: Bios Setup

    BIOS Setup The SQ576 mainboard uses an Award BIOS, which is stored in a Flash EEPROM and which can be upgraded using a floppy disk-based program. The BIOS has a built-in Setup program that allows users to modify the basic system configuration setting. The settings are then stored in a dedicated battery-backed memory, called CMOS RAM, that retains the information when the power is turned off.
  • Page 28 Chipset screen without a good reason. The Chipset defaults have been carefully chosen by Award or your system manufacturer for the best performance and reliability. Even a seemingly small change to the Chipset setup may causing the system to become unstable. SQ576...

  • Page 29: Main Setup Menu

    Automatically detect and configure IDE hard disk parameters. Detection Load Setup Setup defaults are factory settings for optimal-performance Defaults system operations. Save & Exit Setup Save settings in nonvolatile CMOS RAM and exit Setup. Exit Without Save Abandon all changes and exit Setup. SQ576...

  • Page 30: Standard Cmos Setup Menu

    IDE hard drives. When you select type AUTO for a hard drive, the BIOS detects its specifications during POST, every time the system boots. If you do not want to select drive type AUTO, other methods of selecting the drive type are available: SQ576...
  • Page 31 1.2M, 5.25 in 5-1/4 inch AT-type high-density drive; 1.2 megabyte capacity 720K, 3.5 in 3-1/2 inch double-sided drive; 720 kilobyte capacity 1.44M, 3.5 in 3-1/2 inch double-sided drive; 1.44 megabyte capacity 2.88M, 3.5 in 3-1/2 inch double-sided drive; 2.88 megabyte capacity SQ576...
  • Page 32 Typically 640 KB. Also called conventional memory. The DOS operating system and conventional applications use this area. Extended Memory Above the 1-MB boundary. Early IBM personal computers could not use memory above 1 MB, but current PCs and their software can use extended memory. SQ576...
  • Page 33 (TSR) programs, such as device drivers, in this area, to free as much conventional memory as possible for applications. Lines in your CONFIG.SYS file that start with LOADHIGH load programs into high memory. Total Memory System total memory is the sum of base memory, extended memory, and other memory. SQ576...

  • Page 34: Bios Features Setup Menu

    Select Enabled to reduce the amount of time required to run the power-on self-test (POST). A quick POST skips certain steps. We recommend that you normally disable quick POST. Better to find a problem during POST than lose data during your work. SQ576...
  • Page 35 When the typematic rate setting is enabled, you can select a typematic delay (the delay before key strokes begin to repeat) of 250, 500, 750 or 1000 milliseconds. 4.4.11 Security Option If you have set a password, select whether the password is required every time the System boots, or only when you enter Setup. SQ576...
  • Page 36 BIOS Features Setup screen may be occupied by other expansion card firmware. If an expansion peripheral in your system contains ROM-based firmware, you need to know the address range the ROM occupies to shadow it into the correct area of RAM. 4-10 SQ576...

  • Page 37: Chipset Features Setup Menu

    You can reserve this area of system memory for ISA adapter ROM. When this area is reserved, it cannot be cached. The user information of peripherals that need to use this area of system memory usually discusses their memory requirements. 4-11 SQ576...

  • Page 38: Power Management Setup Menu

    Select this option if your monitor supports the Display Power Management Signaling (DPMS) standard of the Video Electronics Standards Association (VESA). Use the software supplied for your video subsystem to select video power management values. Blank Screen System only writes blanks to the video buffer. 4-12 SQ576...
  • Page 39 You can turn On or Off monitoring of IRQ8 (the Real Time Clock) so it does not awaken the system from Suspend mode. 4.6.13 Reload global Timer Evets When Enabled, an event occurring on each device listed below restarts the global time for Standby mode. 4-13 SQ576...
  • Page 40 IRQ3 -7, 9-15, NMI Primary IDE 0 Primary IDE 1 Secondary IDE 0 Secondary IDE 1 Floppy Disk Serial Port Parallel Port 4-14 SQ576...

  • Page 41: Pci Configuration Setup Menu

    PCI/ISA PnP Devices compliant with the Plug and Play standard, whether designed for PCI or ISA bus architecture. 4.7.5 DMA # Assigned to When resources are controlled manually, assign each system DMA channel as one of the following types, depending on the type of device using the interrupt: 4-15 SQ576...
  • Page 42 Because the PCI IDE interface in the chipset has two channels, it requires two interrupt services. The primary and secondary IDE INT# fields default to values appropriate for two PCI IDE channels, with the primary PCI IDE channel having a lower interrupt than the secondary. 4-16 SQ576...

  • Page 43: Integrated Peripherals Menu

    The integrated peripheral controller contains an IDE interface with support for two IDE channels. Select Enabled to activate each channel separately. 4.8.5 USB Keyboard Support Select Enabled if your system contains a Universal Serial Bus (USB) controller and you have a USB keyboard. 4-17 SQ576...
  • Page 44 Standard parallel port mode (Default) Bi-directional mode Fast, buffered ECP+EPP Bi-directional and buffered 4.8.13 ECP Mode Use DMA Select a DMA channel for the port. 4-18 SQ576...

  • Page 45: Ide Hdd Auto Detection

    Enter a password each time the system boots and whenever you enter Setup. Setup Enter a password whenever you enter Setup. NOTE: To clear the password, simply press Enter when asked to enter a password. Then the password function is disabled. 4-19 SQ576...
  • Page 47 Documentation Rev. Number: A02 (May 1997) SQ576...

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