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2-5 Main Memory Configuration
The DRAM memory system on board consists of 3 banks, and the memory range is
8 ~ 384
MBytes.
Memory-bus Frequency Setting Jumper (JP11)
This setting is only relevant when SDRAM-DIMM is used.
1~2 short (default): Synchronous mode
Memory-bus speed = CPU-bus speed
2~3 short: Asynchronous mode
Memory-bus speed = AGP-bus speed
(see details in section 2-3)
@
When synchronous mode cannot be used due to
speed limitations of your SDRAM modules.
DRAM Specifications
Types Supported
Synchronous DRAM
Speed requirement
SDRAM: 10/12ns
Module types & sizes
8/16/32/64/128 MBytes, single/double-sided, 3.3v DIMM
Parity
Both parity and non-parity modules may be used.
1
+
1
1
1
+
+
1
1
1
1
System
Frequency
SDRAM Type
Max Memory
4 unbuffered DIMM Modules
66MHz
12ns or faster
384MB
100MHz
10ns or faster
1 384
DIMM1 Bank0
DIMM2 Bank1
DIMM3 Bank2
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