Supero SUPER P3TDL3, User Manual

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2-14
S
UPER P3TDL3/P3TDLE User’s Manual
2-7 DIP Switch Settings
DIP Switch 1:
Core/Bus Ratio
Two "DIP" switches labeled SW1
a n d S W 2 a r e l o c a t e d o n t h e
P3TDL3/P3TDLE near the ISA slot.
The four slide switches on DIP
Switch 1 are used to set the core/
bus ratio.
The example on the right will show
you which CPU Core/Bus Ratio to
use. The general rule is to divide
the CPU speed by the bus speed.
If you have a 550 MHz CPU, divid-
ing it by a 100 Mhz front side bus
will give you a CPU Core/BUS Ra-
tio of 5.5. After determining the
CPU Core/Bus Ratio, refer to Table
2-27 for the correct settings of DIP
Switch 1.
Note:
Most Intel processors have a fixed
core/bus ratio that will overwrite
the setting of DIP Switch
1.
CPU Speed vs. Bus Freq.
S W 1
# 3
O N
O N
O N
O N
1 3 3 /1 0 0
6 0 0 /4 5 0
6 6 7 /5 0 0
7 3 3 /5 5 0
8 0 0 /6 0 0
8 6 6 /6 5 0
9 3 3 /7 0 0
1 G /7 5 0
1 .0 6 G /8 0 0
1 .1 3 G /8 5 0
1 .2 0 G /9 0 0
1 .2 6 G /9 5 0
S W 1
# 1
O N
O N
O N
O N
O N
O N
O N
S W 1
# 2
O N
O N
O N
O N
O N
O N
S W 1
# 4
O N
O N
O N
O N
O N
O N
T a b le 2 -2 7
C P U C o re /B u s R a tio S e le c tio n
(D IP S w itc h 1 )