Asus P5A-VM User Manual page 16

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.
P5A-VM
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
CPU F: IDT WinChip 2™
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.
NOTE: For updated processor settings, visit the ASUS web site (see ASUS CON-
TACT INFORMATION for URLs).
16
III. INSTALLATION
1 2 3
FS3
FS2
FS1
FS0
CPU
60MHz
AGP
60MHz
PCI
30MHz
1 2 3
FS3
FS2
FS1
FS0
CPU
100MHz
AGP
66.6MHz
PCI 33.4MHz
CPU External Clock (BUS) Frequency Selection
1 2 3 1 2 3
BF2
BF1
BF0
CPU A 3.5x(7/2) 6.0x(6/1)
CPU B 3.5x(7/2) 2.0x(2/1)
1.5x(3/2) 2.0x(2/1)
CPU C
3.5x(7/2) 2.0x(2/1)
CPU D
CPU E 3.0x(3/1) 2.0x(2/1)
3.5x(7/2) 3.22x(10/3)
CPU F
CPU : BUS Frequency Multiple
ASUS P5A-VM User's Manual
1 2 3 1 2 3 1 2 3 1
66.8MHz 75MHz 75MHz 83.3MHz
66.8MHz 75MHz 60MHz 66.6MHz
33.4MHz 37.5MHz 30MHz 33.3MHz
1 2 3 1 2 3 1 2
105MHz 110MHz 115MHz
70MHz 73MHz 76.6MHz
35MHz 36.6MHz 38.3MHz
1 2 3 1 2 3 1 2 3 1 2 3
2.5x(5/2) 3.0x(3/1) 4.0x(4/1) 4.5x(9/2)
2.5x(5/2) 3.0x(3/1) 4.0x(4/1) 4.5x(9/2)
2.5x(5/2) 3.0x(3/1) — —
2.5x(5/2) 3.0x(3/1) — —
1.0x(1/1) — — —
2.5x(5/2) 3.0x(3/1) 4.0x(4/1) 4.5x(9/2)
2 3 1 2 3
95MHz
63.3MHz
31.6MHz
3 1 2 3
120MHz
80MHz
40MHz
1 2 3 1 2 3
5.0x(5/1) 5.5x(11/2)
5.0x(5/1) 5.5x(11/2)
— —
— —
— —
2.33(7/3) 2.66x(8/3)