Samsung 164BX user manual Features of the AlphaPC164UX Motherboard, AlphaPC 164UX Features

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Features of the AlphaPC164UX Motherboard

Table 2–1provides an overview of the AlphaPC 164UX motherboard’s features.

Table 2–1 AlphaPC 164UX Features

Feature	Description
Microprocessor	Alpha 21164 microprocessor (64-bit RISC)
Core logic chip	Digital Semiconductor 21174 core logic chip, comprising a single
	control chip that provides an interface to system memory and the
	PCI bus
Main memory	32MB to 3GB memory array –- Three banks of 128-bit memory;
	168-pin unbuffered SDRAM DIMMs with ECC
Caching:
L1 Icache	8KB, direct-mapped instruction cache on the CPU chip
L1 Dcache	8KB, direct-mapped data cache on the CPU chip
L2 Scache	96KB, three-way, set-associative, write-back unified instruction
	and data cache on the CPU chip
L3 backup cache	Onboard 2MB/4MB, direct-mapped, synchronous SSRAM backup
	cache with 128-bit data path
I/O and miscellaneous support	32-bit and 64-bit, 33-MHz PCI
	One 64-bit and five 32-bit PCI expansion slots
	One dedicated ISA expansion slot
	DEC 21052 PCI-to-PCI Bridge chip
	Intel 82371SB PCI-to-ISA bridge chip
	DEC 21143 10/100 Mb/s Ethernet LAN Controller
	Symbios 53C875 Ultra wide SCSI Controller
	SMC FDC37C666 combination controller chip provides control
	for diskettes, two UARTs with modem control, parallel port
	1MB flash ROM
Firmware	Windows NT ARCSBIOS firmware

Figure 2–1 shows the AlphaPC 164UX motherboard and its components.

Features of the AlphaPC164UX Motherboard 2–1