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HD: IDE Hard Disk Active LED
1
PIN 1: LED anode (+)
PIN 2: LED cathode ( )
GN: Green Function Switch
Open : Normal operation
Short : Entering Green Mode
GD: Green LED
PIN 1 : LED anode (+)
PIN 2 : LED cathode ( )
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 66, 100MHz or 133MHz, 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.
Hardware Installation
3-8
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