K7MKLE
System Board 24
DIMM Type
The type of buffer and the working voltage of a DIMM module can be read from
the position of the two notches. Please refer to the following diagram for more
information:
SDRAM BUFFER TYPE
Unbuffered
Buffered
RFU
Undefined
3.3V
5.0V
SDRAM VOLTAGE
VCRAM
Virtual Channel RAM is a technology that was initially developed by NEC. VCRAM
increases the memory bus efficiency and performance of the memory module by providing
a set of fast static registers between the memory core and I/O pins, resulting in reduced
data access latency and reduced power consumption. Each data request from a memory
master contains separate and unique characteristics. Multiple requests from multiple
memory masters can cause page trashing and bank conflicts, which result in low memory
bus efficiency. The VCRAM architecture assigns virtual channels to each memory master.
Since virtual channels maintain the individual characteristics of each memory master
request, bus efficiency is dramatically increased.
