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3.4. DRAM INSTALLATION
The main board can be installed with 8 / 16 / 32 / 64 / 128 / 256 MB 168 pins
DIMM module DRAM, and the DRAM speed must be 67~100 MHz for SDRAM
when system bus speed is set to 66MHz. When system bus speed is set to
100MHz, 100MHz SDRAM is required. The DRAM memory system on main
board consists of bank 0, 1, 2 & bank 3.
Since 168 pins DIMM module is 64 bits width, therefore 1 piece of DIMM
module may match a 64 bits system. The total memory size is 8 MB ~1GB
SDRAM. The DRAM installation position refer to Figure 3.1, and notice the Pin
1 of DIMM module must match with the Pin 1 of DIMM socket. Insert the DRAM
DIMM module into the DIMM socket at Vertical angle. If there is a wrong
direction of Pin 1, the DRAM DIMM module could not be inserted into socket
completely.
3.5. CPU SPEED SETUP
The system bus speed can be set to 66 / 100MHz form the DIP SWITCH ( SW ).
The user can change the DIP SWITCH selection to set up the CPU speed for
different processors.
®
Pentium
II / III
1
CPU
233 / 66MHz
OFF
266 / 66MHz
ON
300 / 66MHz
OFF
333 / 66MHz
ON
366 / 66MHz
OFF
400 / 66MHz
ON
433 / 66MHz
OFF
466 / 66MHz
ON
500 / 66MHz
OFF
533 / 66MHz
ON
* 566 / 66MHz
OFF
350 / 100MHz
OFF
400 / 100MHz
ON
450 / 100MHz
OFF
500 / 100MHz
ON
550 / 100MHz
OFF
2
3
4
5
OFF
ON
ON
ON
ON
OFF
ON
ON
ON
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
3-9
Hardware Installation
6
7
8
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
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