Chapter 2
18
The compatibility with 256MB and Registered 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.
2-5 Main Memory Configuration
The DRAM memory system consists of three banks and the memory size ranges from
16~384 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, unbuffered, registered, 64/72-bit SDRAM with SPD*
Module size: Single/double-side 16/32/64/128 MBytes
Parity: Either parity or non-parity
DIMM 2
DIMM 3
Bank1
Bank2
DIMM 1
Bank0
128
1
System Frequency SDRAM Type Max Me
3 unbuffered DIMM Modules
66MHz 12ns or faster
384M
100MHz 10ns or faster
3 Registered DIMM Modules
66MHz 12ns or faster
768M
100MHz 10ns or faster
2
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