66mhz ext. 60mhz ext, User's manual, P/i-p55sp4 – Asus P55SP4 User Manual
Page 67
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P/I-P55SP4
User's Manual
CPU External Clock Speed Selector: JP12, JP13 & JP14
Set these as shown, according to the CPU's internal clock speed.
Int. Clk
Ext. Clock
JP12
JP13
JP14
Int. Clk Multiple
166MHz
66Mhz
2&3
1&2
1&2
2.5
X
Ext. Clock
150MHz
60Mhz
1&2
2&3
1&2
2.5
X
Ext.Clock
133MHz
66Mhz
2&3
1&2
1&2
2
X
Ext. Clock
120MHz
60Mhz
1&2
2&3
1&2
2
X
Ext. Clock
lOOMHz
66Mhz
2&3
1&2
1&2
1.5
X
Ext.Clock
90MHz
60Mhz
1&2
2&3
1&2
1.5
X
Ext. Clock
75MHz
SOMhz
2&3
2&3
1&2
1.5
X
Ext.Clock
Important:
CPUs are normally listed by their internal c\oc\(. speed, as
shown above. You MUST also set
JP20 & 21
for the correct multiple of the
external clock speed of the installed CPU.
"D
4^
C—
'O
c_
"D
CO ro
"D "O
CO
ro
~D
c_
CO
"a
ISJ
o o
o
o
o
o
o
o o
66MHz Ext.
60MHz Ext.
166/133/tOOMHz Int. 150/120/90MHZ Int.
50MHz Ext.
75Mhz Int.
Note: JP14 default is 1&2 for all settings, do not change it
4-4