CHAINTECH 6WIV0, Manual, Page: 21 / 29

Chapter 2
18
2-5 Main Memory Configuration
The DRAM memory system consists two banks and the memory size ranges from
16~256 MBytes . If you only use one bank it does not matter which one you use and
if you use two or more banks, it does not matter which bank you install first.
DRAM Specifications
DIMM type: 3.3V, 64/72-bit Synchronous DRAM
Module size: Single/double-sided 16/32/64/128 MBytes
DRAM speed: 10ns for Synchronous DRAM
Parity: Either parity or non-parity
The compatibility of 256MB DIMM is still under testing and cannot be
guaranteed.
This mainboard supports 3.3v, unbuffered, 4-clock, SDRAM DIMM only.
Buffered, 5V, or 2-clock SDRAM DIMMs should not be used.
Due to loading anomalies, using DIMM with an 'n x 4' DRAM base on this
mainboard is not recommended. For example, a DIMM that uses sixteen
16Mb x 4 devices should not be used.
SPD (Serial Presence Detect)
This is an EPROM that contains speed and design information about the memory
module. The mainboard queries the module and makes adjustments to system
operation based on what it finds.