Asus TXP4 User Manual page 16

3. CPU External (BUS) Frequency Selection (FS0, FS1, FS2)
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).
4. CPU to BUS Frequency Ratio (BF0, BF1, BF2)
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.
WARNING!
onboard Intel Chipset and are not guaranteed to be stable. The following
table is for general reference purposes only. Always refer to the instructions
included with your CPU when possible.
R
TXP4 CPU Settings
Match the table's Ratio
column to these CPU types:
16
III. INSTALLATION
Frequencies above 66MHz exceed the specifications for the
1 1
2 2
3 3
50MHz
CPU External Clock (BUS) Frequency Selection
1 1
2 2
3 3
CPU A 1.5x(3/2)
CPU B 3.5x(7/2)
CPU C
3.0x(3/1)
CPU D 3.0x(3/1)
CPU E 3.5x(7/2)
CPU : BUS Frequency Ratio
ASUS TXP4 User's Manual
1 1
2 2
3 3
55MHz 60MHz 66MHz
1 1
2 2
3 3
2.0x(2/1) 2.5x(5/2) 3.0x(3/1)
2.0x(2/1) 2.5x(5/2) 3.0x(3/1)
2.0x(2/1) 1.0x(1/1) ----
2.0x(2/1) 2.0x(2/1) ----
2.0x(2/1) 2.5x(5/2) 3.0x(3/1)
1 1
2 2
3 3
75MHz 83MHz
1 1
2 2
3 3
---- ----
---- ----
---- ----
---- ----
4.0X(4/1) (4.5X)(9/2)