Asus MEL-B User Manual page 16

III. HARDWARE SETUP
3. CPU External (BUS) Frequency Selection (DIP1, 2, 3)
These DIP switches 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 ad-
vertised CPU speed).
50MHz
CPU/AGP
PCI BUS 25MHz
MEL-B CPU BUS Frequency Selection
4. CPU to BUS Frequency Multiple (DIP7, 8, 9, 10)
These DIP switches set the frequency multiple between the Internal frequency
of the CPU and the External frequency (called the BUS Clock) within the CPU.
3.0x(3/1) 3.5x(7/2)
6.0x(6/1) 6.5x(13/2)
MEL-B CPU : BUS Frequency Multiple
Set the DIP switches by the Internal speed of your processor as follows:
Intel CPU Model Speed
Celeron (PPGA) 400MHz
Celeron (PPGA) 366MHz
Celeron (PPGA) 333MHz
Celeron (PPGA) 300MHz
16
83.3MHz 68.4MHz
41MHz 34.2MHz
4.0x(4/1) 4.5x(9/2) 5.0x(5/1) 5.5x(11/2)
7.0x(7/1) 7.5x(15/2) 8.0x(8/1)
Mult Freq. DIP1
6.0x 66MHz [OFF] [OFF] [OFF]
5.5x 66MHz [OFF] [OFF] [OFF]
5.0x 66MHz [OFF] [OFF] [OFF]
4.5x 66MHz [OFF] [OFF] [OFF]
ASUS MEL-B User's Manual
75MHz 66.8MHz 60MHz
37.5MHz 33.4MHz 30MHz
(BUS Frequency)
DIP2 DIP3 DIP7
[ON]
[OFF] [OFF] [OFF] [ON]
[ON]
[OFF]
(Frequency Multiple)
DIP8 DIP9 DIP10
[ON] [ON] [OFF]
[OFF] [OFF] [ON]
[ON] [OFF] [ON]