ASUS P2B-PINS User Manual
IE302
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P2B Update
Several changes have been made since Manual Revision 1.03 (E302) of the P2B
AGP Mainboard. Major changes include the following jumper settings. As always,
heed the warning and notes in the original manual, particularly on overclocking (see
page 14, CPU Core:BUS Frequency Multiple).
AGP Frequency Selection (AGPFS)
This option sets the frequency ratio between the AGP bus frequency and the CPU bus
frequency . The default sets the AGP frequency to 2/3 of the CPU bus or host frequency.
AGPFS
1
AGP Frequency = 2/3 CPU Bus or Host Frequency
2
3
(Default)
R
AGPFS
1
2
AGP Frequency = CPU Bus or Host Frequency
3
P2B AGP Frequency Selection
WARNING! AGP bus frequencies above 66MHz exceed the specifications for
the AGP interface and are not guaranteed to be stable.
(2:3)
(1:1)
CPU Core:BUS Frequency Multiple (BF0, BF1, BF2, BF3)
This option sets the frequency ratio between the Internal frequency of the CPU and the
CPU’ s External frequency. These must be set in conjunction with the CPU Bus Fr equency.
BF1
BF1
FS1
FS1
BF2
BF2
FS2
FS2
FS3
FS3
BF3
1
2
3
BF3
1
2
3
1
2
3
1
2
3
BF0
BF0
FS1
FS0
103MHz
34.3MHz
FS1
FS0
133MHz
33.3MHz
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P2B CPU Settings
BF1
BF1
FS1
FS1
BF2
BF2
FS2
FS2
BF3
1
2
3
BF3
1
2
3
FS3
1
2
3
41.65MHz
FS3
1
2
3
BF0
BF1
BF0
BF1
FS1
FS0
83.3MHz
FS1
FS0
124MHz
31MHz
BF2
BF2
FS2
FS2
BF3
1
2
3
BF3
1
2
3
FS3
1
2
3
100.3MHz
33.43MHz
FS3
1
2
3
41.33MHz
BF0
BF0
FS0
FS0
124MHz
BF0
2.0x (2/1)
BF0
5.5x (11/2)
CPU Core:BUS Frequency Multiple
FS0
66.8MHz
33.4MHz
FS0
115MHz
38.33MHz
CPU External Clock (BUS) Frequency Selection
BF0
BF1
BF3
BF2
1
2
3
2.5x (5/2) 3.0X (3/1) 3.5X (7/2) 4.0X (4/1) 4.5X (9/2) 5.0X (5/1)
BF0
BF1
BF3
BF2
1
2
3
6.0x (6/1) 6.5X (13/2) 7.0X (7/1) 7.5X (15/2) 8.0X (8/1)
FS0
FS1
FS2
FS3
1
2
3
75MHz
37.5MHz
FS0
FS1
FS2
FS3
1
2
3
120MHz
40MHz
Set the jumpers by the Internal speed of your processor as follows:
(BUS Freq.) (Freq. Mult.)
Intel CPU Model Freq. Mult. BUS F. FS0 FS1 FS2 FS3 BF0 BF1 BF2 BF3
Pentium II 450MHz 4.5x 100MHz [1-2] [1-2] [1-2] [2-3] [1-2] [2-3] [1-2] [2-3]
Pentium II 400MHz 4.0x 100MHz [1-2] [1-2] [1-2] [2-3] [2-3] [2-3] [1-2] [2-3]
Pentium II 350MHz 3.5x 100MHz [1-2] [1-2] [1-2] [2-3] [1-2] [1-2] [2-3] [2-3]
BF1
BF1
BF2
BF2
FS2
FS2
BF3
1
2
3
BF3
1
2
3
FS3
1
2
3
FS3
1
2
3
44.33MHz
BF0
BF1
BF0
BF1
FS1
FS0
105MHz
35MHz
FS1
FS0
133MHz
BF2
BF2
FS2
FS2
BF3
1
2
3
BF3
FS3
1
2
3
36.67MHz
FS3
1
2
3
BF0
BF1
FS1
FS0
110MHz
FS1
FS0
140MHz
35MHz
BF2
FS2
FS2
BF3
FS3
1
2
3
37.33MHz
FS3
1
2
3
FS1
FS0
112MHz
FS1
FS0
150MHz
37.5MHz
FS2
FS2
FS3
FS3
CPU
PCI
CPU
PCI
Pentium II/Celeron 366MHz 5.5x 66MHz [1-2] [1-2] [2-3] [2-3] [1-2] [1-2] [1-2] [2-3]
Pentium II/Celeron 333MHz 5.0x 66MHz [1-2] [1-2] [2-3] [2-3] [2-3] [1-2] [1-2] [2-3]
Pentium II/Celeron 300MHz 4.5x 66MHz [1-2] [1-2] [2-3] [2-3] [1-2] [2-3] [1-2] [2-3]
Pentium II/Celeron 266MHz 4.0x 66MHz [1-2] [1-2] [2-3] [2-3] [2-3] [2-3] [1-2] [2-3]
Pentium II 233MHz 3.5x 66MHz [1-2] [1-2] [2-3] [2-3] [1-2] [1-2] [2-3] [2-3]
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