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10 Chapter 1
Hardware Specifications and Configurations
Processor Support
• Intel Core 2 Duo 755 FSB 800/533 MHz
• Intel Pentium 4/D 775 FSB 800/533 MHz
• Intel Celeron/Celeron D 775 FSB 800/533MHz
System Memory Interface
Single Channel Memory Controller
• Supports DDR2-667/533/400
• Supports two DIMMs
• Up to 1GB per DIMM with maximum memory size up to 2GB
• Supports Single Channel 64 bit mode with maximum memory bandwidth of 5.3GB/s (DDR2-667).
• Supports un-buffered DIMMs only.
• Supports up to 8 banks for DDR2 devices
• Supports 256Mb, 512Mb and 1Gb device technologies for x8 and x16 DDR2 devices
• Supports DDR2 CAS Latency at options of 3, 4 & 5 clocks.
• Support Dynamic Power Down Mode
• Support On-Die-Termination for DDR2
• Support Differential DQS Pair
System Clock
SIS672 Chipset
SIS672 Host/Memory Controller
SIS 672 is a Host/Memory Controller designed for use with a LGA775 (Land Grid Array) Socket T processor.
The SIS672 provides the CPU interface, DDR2 interface, PCI Express interface, and communicates with SiS
968 MuTIOL 1G Media I/O Interface.
Features of the SIS 671FX chipset family board products include:
• 847 ball FC-BGA package
• Single processor support with 533/800 MHz data transfer rate
All clocks are generated by 671FX and CLK GEN(ICS9LPR600CGLF-T) including:
Item Clock Speed
Host 133/200/266MHz (System Bus 533/800MHZ)
Memory system DDR2: 400/533/667 MHz,
PCI 33 MHz
PCI Express 100 MHz
USB 12 MHz
1394 33MHz
SIO 33,48 MHz
968 14.318, 25, 33, 48, and 100 MHz
RTC 32.768 KHz
LAN 25MHz
Audio Codec 24 MHz