Справочник Пользователя для ASUS P/I-P55T2P4
ASUS P/I-P55T2P4 User's Manual
10
III. INSTALLATION
(Jumpers)
III. INST
ALLA
TION
7. CPU External (BUS) Frequency Selection (JP8, JP9, JP10)
These jumpers tell 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
times the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed).
allow the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock
times the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed).
8. CPU to BUS Frequency Ratio (JP11, JP12)
These jumpers set the frequency ratio between the Internal frequency of the CPU
and the External frequency (called the BUS Clock) within the CPU. These must
be set together with the above jumpers CPU External (BUS) Frequency Selection.
and the External frequency (called the BUS Clock) within the CPU. These must
be set together with the above jumpers CPU External (BUS) Frequency Selection.
CPU External Clock (BUS) Frequency Selection
50MHz
55MHz
60MHz
1
2
3
2
3
1
2
3
2
3
1
2
3
2
3
JP9
JP8
JP10
JP9
JP8
JP10
JP9
JP8
JP10
66MHz
1
2
3
2
3
JP9
JP8
JP10
75MHz
1
2
3
2
3
JP9
JP8
JP10
Complete Names:
Intel Pentium P54C, P55C-MMX
AMD K5, K6
IBM/Cyrix 6x86, 6x86MX
Intel Pentium P54C, P55C-MMX
AMD K5, K6
IBM/Cyrix 6x86, 6x86MX
1
2
3
2
3
JP12
JP1
1
1
2
3
2
3
JP12
JP1
1
1
2
3
2
3
JP12
JP1
1
1
2
3
2
3
JP12
JP1
1
CPU : BUS Frequency Ratio
P54C/K5
P55C/K6/MX
IBM/Cyrix 6x86
P55C/K6/MX
IBM/Cyrix 6x86
3.0x(3/1)
3.0x(3/1)
4.0x(4/1)
3.0x(3/1)
4.0x(4/1)
2.5x(5/2)
2.5x(5/2)
1.0x(1/1)
2.5x(5/2)
1.0x(1/1)
2.0x(2/1)
2.0x(2/1)
2.0x(2/1)
2.0x(2/1)
2.0x(2/1)
1.5x(3/2)
3.5X(7/2)
3.0x(3/1)
3.5X(7/2)
3.0x(3/1)
Set the jumpers by the Internal speed of the Intel, AMD, IBM, or Cyrix CPU as follows:
(BUS Freq.)
(Freq. Ratio)
CPU Model
Freq.
Ratio
B. Freq.
JP10 JP9
JP8
JP12 JP11
Intel Pentium
233MHz
3.5x
66MHz
[2-3] [1-2] [2-3]
[1-2] [1-2]
Intel Pentium
200MHz
3.0x
66MHz
[2-3] [1-2] [2-3]
[2-3] [1-2]
Intel Pentium
166MHz
2.5x
66MHz
[2-3] [1-2] [2-3]
[2-3] [2-3]
Intel Pentium
150MHz
2.5x
60MHz
[1-2] [2-3] [2-3]
[2-3] [2-3]
Intel Pentium
133MHz
2.0x
66MHz
[2-3] [1-2] [2-3]
[1-2] [2-3]
Intel Pentium
120MHz
2.0x
60MHz
[1-2] [2-3] [2-3]
[1-2] [2-3]
Intel Pentium
100MHz
1.5x
66MHz
[2-3] [1-2] [2-3]
[1-2] [1-2]
Intel Pentium
90MHz
1.5x
60MHz
[1-2] [2-3] [2-3]
[1-2] [1-2]
Intel Pentium
75MHz
1.5x
50MHz
[2-3] [2-3] [2-3]
[1-2] [1-2]
AMD-K6-PR233
233MHz
3.5x
66MHz
[2-3] [1-2] [2-3]
[1-2] [1-2]
AMD-K6-PR200
200MHz
3.0x
66MHz
[2-3] [1-2] [2-3]
[2-3] [1-2]
AMD-K6-PR166
166MHz
2.5x
66MHz
[2-3] [1-2] [2-3]
[2-3] [2-3]
AMD-K5-PR133/100
100MHz
1.5x
66MHz
[2-3] [1-2] [2-3]
[1-2] [1-2]
AMD-K5-PR120/90
90MHz
1.5x
60MHz
[1-2] [2-3] [2-3]
[1-2] [1-2]
AMD-K5-PR75
75MHz
1.5x
50MHz
[2-3] [2-3] [2-3]
[1-2] [1-2]
IBM/Cyrix 6x86MX-PR233
200MHz
3.0x
66MHz
[2-3] [1-2] [2-3]
[2-3] [1-2]
IBM/Cyrix 6x86MX-PR200
166MHz
2.5x
66MHz
[2-3] [1-2] [2-3]
[2-3] [2-3]
IBM/Cyrix 6x86MX-PR166
150MHz
2.5x
60MHz
[1-2] [2-3] [2-3]
[2-3] [2-3]
*IBM/Cyrix6x86-PR166+ 133MHz
2.0x
66MHz
[2-3] [1-2] [2-3]
[1-2] [2-3]
*NOTE:
Only IBM or Cyrix Rev 2.7 or later is supported on this motherboard (see next page). Bootup
screen will show 6x86-P166+ with the Cyrix PR166+ installed on this motherboard.
screen will show 6x86-P166+ with the Cyrix PR166+ installed on this motherboard.