Dram Installation; Cpu Speed Setup - Gigabyte GA-6LM7A Quick Start Manual

GD: Green LED
1
PIN 1 : LED anode (+)
PIN 2 : LED cathode ( )

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 50 or 60 ns for EDO &
67MHz for SDRAM when system bus speed is set to 66MHz. The DRAM
memory system on main board consists of bank 0, 1 and bank 2 .
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 ~
384MB SDRAM, EDO DRAM size is 16MB ~ 768MB. 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 66MHz form the jumper (JP2,JP3,JP4).
The user can change the DIP SWITCH (SW) selection to set up the CPU
speed for different processors. The CPU speed must match with the
frequency RATIO and Front Side Bus (FSB) speed. It will cause system
hanging up if the frequency RATIO and FSB Speed do not match with the
CPU.
DIP SWITCH (SW)
1 2
OFF OFF
ON ON
OFF ON
ON OFF
OFF OFF
ON ON
OFF ON
FREQ.
RATIO
3 4
OFF ON 5.5
ON OFF 6
ON OFF 6.5
ON OFF 7
ON OFF 7.5
OFF OFF 8
OFF OFF 8.5
3-6
Hardware Installation
EXT.CLK. INT.CLK.
MHz MHz
66 366
66 400
66 433
66 466
66 500
66 533
66 566