Chipset; Intel 82443Ex Pci/Agp Controller (Pac - NEC Direction SP User Manual

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NOTE
supported. SDRAM DIMMs with an nx4 DRAM base
are not supported. DO NOT use a DIMM rated 16
Mbit x 4.

Chipset

The Intel 440EX chipset was designed for the Pentium II
processor. It consists of the Intel 82443EX PCI/AGP
controller (PAC) and the Intel 82371EB PCI/ISA IDE
Xccelerator (PIIX4E) bridge chip.

Intel 82443EX PCI/AGP Controller (PAC)

The PAC provides bus-control signals, address paths, and
data paths for transfers between the processor's host bus,
PCI bus, Accelerated Graphics Port (AGP) and main
memory. The PAC provides the following features:
T
Processor interface control
T
Integrated DRAM controller
B-4 System Specifications
Buffered or 2-clock SDRAM DIMMs are not
Processor host bus speeds of 66 MHz
32-bit addressing
GTL+ compliant host bus
Supports 66-MHz synchronous DRAM (SDRAM)
64-bit path to memory
Auto detection of memory type
Supports 4-, 16-, 64-and 128-Mbit DRAM devices
Symmetrical and asymmetrical DRAM addressing
Supports 3.3 V DRAMs

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