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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 mainboard can be installed with 16 / 32 / 64 / 128 / 256 MB 168 pins DIMM
module DRAM, and the DRAM speed must be 50 or 60 ns for EDO & 67~100
MHz for SDRAM. The DRAM memory system on mainboard consists of bank
0 ,bank 1& bank 2.
Since 168 pins DIMM module is 64 bits width, using 1 PCS which can match a
64 bits system. The total memory size is 16MB ~ 768MB 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 couldn't be inserted into socket completely.
Hardware Installation
3-7
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