Aopen ak77600gn Benutzerhandbuch
54
A
A
K
K
7
7
7
7
-
-
6
6
0
0
0
0
G
G
N
N
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
H
FSB
H
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 according to what type of CPU you use.
JP 21
CPU FSB
Range
133 MHz
130-160 MHz
166 MHz
161-191 MHz
1-2
(default)
200 MHz
200-248 MHz
2-3
/
100-129 MHz
JP21 K7 Host Clock
Select Jumper
100MHz
Auto detect
(default)
Pin 1
1
1