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S1: CPU INT. / EXT. FREQ. RATIO
CPU TYPE
1
200MHz
OFF
233MHz
ON
266MHz
OFF
300MHz
ON
333MHz
OFF
366MHz
ON
t
POWER1: ATX POWER connector
Pin No.
3,5,7,13,15-
GND
17
4,6,19,20
VCC (+5V)
10
+12V
12
-12V
18
-5V
8
Power Good
9
5V SB (Stand by +5V)
14
PS-ON (Soft ON/OFF)
3.4. DRAM INSTALLATION
The mainboard can be installed with 4 / 8 / 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, 1, 2 & bank 3.
Because the 168 pins DIMM module is 64 bits width, using 1 PCS which can
match a 64 bits system. The total memory size is 8 MB ~ 1 GB EDO /
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 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
2
3
4
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
ON
OFF
ON
ON
OFF
Function
3-5
Hardware Installation
CLK RATIO
X3
X3.5
X4
X4.5
X5
X5.5
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