AlphaPC 264DP Product Brief

This document describes the Compaq AlphaPC 264DP motherboard, a high-performance, cost-effective solution designed for companies developing embedded products.

Key Features:

• Processor Support: Supports one or two Alpha 21264 microprocessors (up to 500 MHz each) via daughtercards, each with 2MB of 128-bit L2 cache.
• Chipset & Memory: Utilizes the 21272 core logic chipset to interface with CPUs, main memory, and PCI buses. It supports 128MB to 4GB of 72-bit ECC SDRAM at 83.3 MHz.
• Expansion Slots: Features six 64-bit, 33MHz PCI slots (one shared with ISA) and one dedicated ISA expansion slot.
• Integrated Peripherals: Includes a dual-port ultrawide SCSI controller (Adaptec AIC-7895), PCI IDE for two devices (PIO mode 4), floppy diskette control, two serial ports, a parallel port, and basic keyboard/mouse control. Onboard Flash ROM supports the Alpha 21264 SROM.
• Software & OS: Comes with Windows NT Alpha BIOS firmware, supporting the installation of Windows NT Server 4.0.
• Power & Physical: Requires a minimum 630W PC power supply (supporting +3.3V, +12.0V, -12.0V, +5.0V, and 2V system bus termination). It operates within a 10°C to 35°C (50°F to 95°F) range. The mainboard measures 42.11 cm x 33.02 cm, and daughtercards are 30.48 cm x 14.99 cm.
• Warranty: Includes a one-year warranty.

The document also provides a functional block diagram and lists order numbers for the mainboard, daughtercard, and related documentation like the SDK and user manuals.