SOYO SY-K7VTA PRO user manual Main Memory

Motherboard Description SY-K7VTA PRO

1-7 MEMORY

1-7.1 Main Memory

The motherboard has three DIMM sockets. SDRAM can be installed in one, two, or three sockets. Using the serial presence detect (SPD) data structure, programmed into an E²PROM on the DIMM, the BIOS can determine the SDRAM’s size and speed. Minimum DIMM memory size is 8 MB; maximum DIMM memory size is 256/512 MB. Memory size and speed can vary between sockets.

The motherboard supports the following memory features:

⎯DRAM interface synchronous with host CPU (66/100/133MHz) or AGP (66MHz) for more flexible configuration

⎯DRAM interface may be faster than CPU by 33 MHz to allow use of PC133 memory modules

⎯DRAM interface may be slower than CPU by 33 MHz to allow use of older memory modules with newer CPUs

⎯Concurrent CPU, AGP, and PCI access

⎯Supports SDRAM and VCM SDRAM memory types

⎯Different DRAM types may be used in mixed combinations

⎯Different DRAM timing for each bank

⎯Dynamic Clock Enable (CKE) control for SDRAM power reduction in high speed system.

⎯Mixed 1M/2M/4M/8M/16M/32MxN DRAMs

⎯The K7VTA PRO supports 3 DIMMs or 6 banks at 133MHz for 1.5GB (max memory)

⎯Flexible row and column addresses

⎯64-bit data width and 3.3V DRAM interface

⎯Programmable I/O drive capability for MA, command, and MD signals

⎯Supports PC100 and PC133 SDRAM

⎯Two-bank interleaving for 16Mbit SDRAM support

⎯Two-bank and four bank interleaving for 64Mbit SDRAM support

⎯Independent SDRAM control for each bank

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