Asus P/I-P65UP5/C-PKND - Manual (Page 14)

14 ASUS P/I-P65UP5 User’s Manual
III. INSTALLATION
3. CPU External (BUS) Frequency Selection (JP2, JP3)
These jumpers tells the clock generator what frequency to send to the CPU.
These allow the selection of the CPU’s External frequency (or BUS Clock). The
BUS Clock multiplied by the BUS Ratio equals the CPU’s Internal frequency
(the advertised CPU speed).
BUS Freq. JP3 JP2
66MHz [1-2] [2-3]
60MHz [2-3] [1-2]
50MHz [1-2] [1-2]
CPU External Clock (BUS) Frequency Selection
66MHz
JP2 JP3
1
2
3
60MHz
JP2 JP3
1
2
3
50MHz
JP2 JP3
1
2
3
R
Intel Pentium Pro (P6) Processor: (Chipset Freq (CPU Ext. Freq
CPU BUS (CPU Card BUS Ratio) on CPU Card) Ext. on Baseboard)
Internal Ratio JP13 JP14 JP15 JP16 JP6 JP7 Freq. JP3 JP2
200MHz 3.0x [ON] [ON] [OFF] [ON] [ON] [OFF] 66MHz [1-2] [2-3]
180MHz 3.0x [ON] [ON] [OFF] [ON] [OFF] [ON] 60MHz [2-3] [1-2]
166MHz 2.5x [ON] [OFF] [ON] [ON] [ON] [OFF] 66MHz [1-2] [2-3]
150MHz 2.5x [ON] [OFF] [ON] [ON] [OFF] [ON] 60MHz [2-3] [1-2]
Intel Pentium (P5) Processor: (CPU Ext. Freq
CPU BUS (CPU Card BUS Ratio) Ext. on Baseboard)
Internal Ratio JP15 JP16 Freq. JP3 JP2
200MHz 3.0x [ON] [OFF] 66MHz [1-2] [2-3]
166MHz 2.5x [ON] [ON] 66MHz [1-2] [2-3]
150MHz 2.5x [ON] [ON] 60MHz [2-3] [1-2]
133MHz 2.0x [OFF] [ON] 66MHz [1-2] [2-3]
120MHz 2.0x [OFF] [ON] 60MHz [2-3] [1-2]
100MHz 1.5x [OFF] [OFF] 66MHz [1-2] [2-3]
90MHz 1.5x [OFF] [OFF] 60MHz [2-3] [1-2]
75MHz 1.5x [OFF] [OFF] 50MHz [1-2] [1-2]
(Jumpers)
III. INST
ALLA
TION