25
Chapter 2 Hardware Setup
1 3
1 3
3 1
3 1
SOCKET A
VIA
KT333
DIMM1
DIMM2
DIMM3
1 3
F
AN2
FAN1
1 3
RT1
FDC1
USB0
USB1
PS/2
MOUSE
PS/2
K/B
LPT1
COM1
COM2
GAME/MIDI POR
T
MIC
LINE OUT
LINE IN
SW1
ON
DIP
1 2 3 4 5
JP1
JP2
CN1
JP3
JP4
ZD1
SSF1
1 3
JP24
2-5.4 Frequency Ratio Select (By SW1 DIP1-DIP5)
• The AMD Athlon and Duron processors provide four Frequency ID signals
(FID) for the system controller to indicate the SYSTCLK multiplier at which
the processor core operates. Normally, multiplier (or bus ratio) is detected
automatically. Therefore, if the processor does not support the function, then
“Bus Ratio” can not be selected.
• When DIP5 of SW1 is on, LED
“SSF1”
will be on, and light is on, it means
that Bus Ratio Select Function is enabled. As long as your CPU supports
Bus Ratio Select function, then Bus Ratio can be selected by users.
SSF1
SW1 DIP1 ~ DIP4 SETTING
SW1 DIP5
5.5x
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
6.5x
7.0x
7.5x
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
8.0x
8.5x
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
9.0x
9.5x
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
10.0x
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
11.0x
11.5x
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
12.0x
6.0x
ON
DIP
1 2 3 4 5
ON
DIP
1 2 3 4 5
Bus ratio detected
by FID (Auto)
Bus ratio selected
by SW1 DIP 1-4
SW1 DIP 5 allows
you to enable or
disable the
"Frequency Ratio
Select" function.
12.5x
10.5x
(Default)