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8 • Introduction
1.4 Specifications
Compliant Specifications
• PICMG 1.2 Rev 1.0 Embedded PCI-X Specification compliant.
• PCI Local Bus Specification, Rev 2.2 compliant.
Form Factor
• Standard Full-Size ePCI-X System Host Board, 338.6mm x 122mm
(13.33”x4.8”).
CPU/Cache
• Intel® Pentium® 4 processor. The socket supports CPUs manufactured
using Intel's 0.13-micron and 90nm manufacturing processes, FC-mPGA4
package (478-pin).
• The Intel
®
Pentium® 4 processor runs at a core speed of up to 3.4GHz,
with a Front Side Bus (FSB) speed of 400/533/800MHz, and on-die 512KB
or 1MB Advanced Transfer L2 Cache.
Chipset
• Intel
®
6300ESB I/O Controller Hub
• Intel® 82875P Memory Controller Hub (MCH)
Host Memory
• Four DDR DIMM sockets
• 266/333/400MHz DDR DIMM modules
• Dual-channel or single-channel DDR interface
• Non-ECC and ECC, un-buffered DIMMs only
• Each socket supports up to 1GB of DDR DIMM
• 128-Mb, 256-Mb, 512Mb technologies implemented as x8, x16 DDR
devices with four banks
• Up to 4GB system memory
• Registered DIMMs are not supported
DDR DIMM speed, type and size can be determined by the BIOS reading the
DIMM presence detect bits on the SMBus (System Management Bus). The