Asus P5S-VM User Manual page 16

III. HARDWARE SETUP
6. CPU External (BUS) Frequency Selection (FS0, FS1, FS2, FS3)
These jumpers tell the clock generator what frequency to send to the CPU, chipset,
and AGP. 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 fre-
quency (the advertised CPU speed).
7. CPU to BUS Frequency Multiple (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 jumpers for CPU External (BUS) Frequency Selection.
P5S-VM CPU Settings
Match the Mult. (Multiple) column of the table on
the opposite page to these CPU types:
CPU A: AMD-K6-III, AMD-K6-2/400&faster
CPU B: AMD-K6-2/380&slower, AMD-K6
CPU C: Intel Pentium P54C, AMD-K5
CPU D: Intel Pentium P55C, IBM/Cyrix 6x86MX,
IBM/Cyrix M II
CPU E: IBM/Cyrix 6x86, IBM/Cyrix 6x86L
WARNING! Frequencies above 100MHz exceed the specifications for the on-
board chipset and are not guaranteed to be stable. The table on the following
page is for general reference purposes only. Always refer to the instructions
included with your CPU when possible.
16
1 2 3 1 2 3
FS3
FS2
FS1
FS0
HOST 133MHz 124MHz
SDRAM 133MHz 124MHz
PCI 33MHz 31MHz
1 2 3 1 2 3
FS3
FS2
FS1
FS0
HOST 133MHz 124MHz
SDRAM 88.9MHz 82.7MHz
PCI 33MHz 31MHz
CPU Bus Frequency
BF 2 1 0 2 1 0
3
2
1
3.5x(7/2) 6.0x(6/1) 2.5x(5/2)
CPU A
CPU B 3.5x(7/2) 2.0x(2/1) 2.5x(5/2)
CPU C 1.5x(3/2) 2.0x(2/1) 2.5x(5/2)
CPU D 3.5x(7/2) 2.0x(2/1) 2.5x(5/2)
CPU E 3.0x(3/1) 2.0x(2/1) 1.0x(1/1)
CPU Core : BUS Frequency Multiple
ASUS P5S-VM User's Manual
1 2 3 1 2 3 1 2 3 1 2 3
112MHz 100MHz 95MHz 83.3MHz
112MHz 100MHz 95MHz 83.3MHz
37.3MHz 33.3MHz 31.7MHz 33MHz
1 2 3 1 2 3 1 2 3 1 2 3
112MHz 100MHz 100MHz 95MHz
74.7MHz 75MHz 66.7MHz 63.3MHz
37.3MHz 30MHz 33.3MHz 31.7MHz
2 1 0 2 1 0 2 1 0 2 1 0
3.0x(3/1) 4.0x(4/1) 4.5x(9/2)
3.0x(3/1) 4.0x(4/1) 4.5x(9/2)
3.0x(3/1) — —
3.0x(3/1) — —
— — —
1 2 3 1 2 3
75MHz 66.6MHz
75MHz 66.6MHz
30MHz 33MHz
1 2 3 1 2 3
66.7MHz 90MHz
100MHz 90MHz
33.3MHz 30MHz
2 1 0 2 1 0
5.0x(5/1) 5.5x(11/2)
5.0x(5/1) 5.5x(11/2)
— —
— —
— —