Asus P55SP4 - Manual (Page 67)

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.
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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
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