GPB50-BX Intel® 440BX AGPset
Intel® Pentium® II, III Processor
Baby AT System Board


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PB50-BX Motherboard Product Information

   • Accelerated Graphics Port (AGP) with up to 533MB/sec. bandwidth
   • Supports ACPI specification
   • Ultra synchronous DMA mode - 33MB/sec. maxium.
   • Supports Modem Ring-On
   • RTC timer to power on the system.
   • Monitors processor temperature, power voltages, and fan speed
   • Equipped with both ATX and AT power connectors


Processors Supported
• Intel® Pentium® III processors 450-500Mhz/100Mhz
• Intel® Pentium® II processors 350-450Mhz/100Mhz
• Intel® Pentium® II processors 233-333Mhz/66Mhz
• SEPP Intel® Celeron® processors 266-433Mhz/66Mhz
• Intel® 440BX AGPset
System Memory
• 8MB to 768MB memory using unbuffered DIMMs
• Three 168-pin DIMM sockets
• Uses x64 PC SDRAM, 3.3V
   – PC-66 SDRAM DIMM for 66MHz FSB processors
   – PC-100 SDRAM DIMM for 100MHz FSB processors
• ECC supported (uses x72 PC SDRAM DIMM)
• Award BIOS, Windows® 95 Plug and Play compatible
• Flash EPROM for easy BIOS upgrades (2MB)
• Supports DMI 2.0 function
Energy Efficient Design
• Supports ACPI specification and OS Directed Power Management(ATX power supply only)
• Wake-On-Events include(ATX power supply only):
   – RTC timer to power-on the system
   – Modem ring-on
   – Wake-On-LAN
   – Wake-On-keyboard/Wake-On-Mouse
• SSystem power management supported
• CPU stopped clock control
• Hardware supports SMI green mode
• Microsoft®/Intel® APM 1.2 compliant
• Soft Power supported - ACPI v1.0a specification(ATX power supply only)
• AC power failure recovery
Damage Free Intelligence
• Monitors processor/system temperature and processor overheat alarm
• Monitors 1.5V/3.3V/±5V/±12V/VCORE voltages and failure alarm
• Monitors processor/system fan speed and failure alarm
• Automatic processor fan control to save energy, prevent system overheat,
• prolong fan life and implement silent system
• Read back capability that displays temperature, voltage and fan speed
PCI IDE Interface
• Ultra DMA/33 supported (Synchronous DMA mode -data transfer rate up to
• 33MB/sec.)
• PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up to 16.6MB/sec.)
• Bus mastering reduces CPU utilization during disk transfer
• ATAPI CD-ROM, LS-120 and ZIP supported
Integrated I/O
• Two NS16C550A-compatible high speed UARTs
• One SPP/ECP/EPP parallel port
• Supports up to 2.88MB floppy drives
Processor Slot
• Intel® Slot 1 connector (242-pin processor slot)
• Equipped with a switching voltage regulator that automatically detects 1.30V to 3.5V
• AGP is an interface designed to support high performance 3D graphics cards
   – Supports up to 533MB/sec. bandwidth for 3D graphics applications
• 2 connectors for USB ports
• 1 connector for IrDA interface
• 2 serial ports
• 1 parallel port
• 2 IDE connectors
• 1 floppy connector
• 1 PS/2 mouse port
• 1 PS/2 or AT keyboard port
• 1 20-pin ATX power supply connector
• 1 12-pin standard AT power supply connector
• 1 Wake-on-LAN connector
• 1 SB-LINK connector
• 3 fan connectors for CPU, chassis and AGP fans 1 connector for IrDA interface
• 1 dedicated AGP slot
• 3 dedicated PCI slots
• 1 dedicated 16-bit ISA slots
• 1 shared PCI/ISA slot
• 4 layers, Baby AT form factor
• 10.43" (26.5cm) x 8.82" (22.4cm)

DFI-ITOX is a trademark of DFI-ITOX LLC. DFI is a registered trademark and PB50-BX is a trademark of DFI Inc. All other product names mentioned are trademarks or registered trademarks of their respective companies. (c) 1999 DFI-ITOX, LLC.
Specifications subject to change without notice.
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© DFI-ITOX, LLC. April 16, 1999