63
A
A
K
K
7
7
7
7
-
-
6
6
0
0
0
0
M
M
a
a
x
x
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
J
J
P
P
2
2
1
1
K
K
7
7
H
H
o
o
s
s
t
t
C
C
l
l
o
o
c
c
k
k
S
S
e
e
l
l
e
e
c
c
t
t
i
i
o
o
n
n
This jumper is used to specify the relationship of PCI and FSB clock. Generally speaking, if you are not an over-clocker, we
recommend you to set it to the default setting. Additionally, this motherboard also provides “1MHz Stepping Adjustment” feature
for overclockers to adjust CPU FSB frequency via BIOS setup program. If you fix the CPU FSB frequency by JP21, the “1MHz
Stepping Adjustment” range will be changed to 100MHz~248MHz.
JP21 K7 Host Clock
Select Jumper
Pin 1
1
100MHz
1
Auto detect
(default)
