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6ZX7
P+P P : Power LED
1
HD: IDE Hard Disk Active LED
1
GN: Green Switch
GD: Green Function Active LED
1
3.4. DRAM INSTALLATION
The main board can be installed with 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. The DRAM memory
system on main board consists of bank 0 & bank 1.
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 16 MB ~
256MB 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 for 66.6/100MHz. The user can select the
system bus speed (SW2) and change the DIP SWITCH (SW1) selection to set
up the CPU speed for 366 - 566MHz processor.
PIN 1: anode (+)
PIN 2: cathode ( )
PIN 3: cathode ( )
PIN 1: LED anode (+)
PIN 2: LED cathode ( )
Open: Normal operation
Short: Entering Green Mode
PIN 1: LED anode (+)
PIN 2: LED cathode ( )
3-5
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