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6WXM
SPKR: Speaker Connector
+
1
HD: IDE Hard Disk Active LED
1
GN: Green Function Switch
GD: Green 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 100 MHz for SDRAM
when system bus speed is set to 66MHz or 100MHz, the DRAM memory
system on main board consists of bank 0 and 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 ~
512MB 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 DIMM module into the DIMM socket at Vertical angle. If there is a
wrong direction of Pin 1, the SDRAM DIMM module could not be inserted
into socket completely.
PIN 1 : VCC (+)
PIN 2 : NC
PIN 3 : NC
PIN 4 : Data ( )
PIN 1: LED anode (+)
PIN 2: LED cathode ( )
Open : Normal operation
Short : Entering Green Mode
PIN 1 : LED anode (+)
PIN 2 : LED cathode ( )
3-7
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