38 PCM-6890 User Manual
SW1 (4~6) CPU frequency ratio
CPU core frequency = CPU frequency ratio (2~5.5) * External bus
clock (66 or 100 MHz)
U
P
C
Y
C
N
E
U
Q
E
R
F
O
I
T
A
R
)
4
(
1
W
S
)
5
(
1
W
S
)
6
(
1
W
S
X
2
N
O
F
F
O
F
F
O
X
5
.
2
N
O
F
F
O
N
O
X
3
N
O
N
O
F
F
O
X
5
.
3
N
O
N
O
N
O
X
4
F
F
O
F
F
O
F
F
O
X
5
.
4
F
F
O
F
F
O
N
O
X
5
F
F
O
N
O
F
F
O
X
5
.
5
F
F
O
N
O
N
O
*
*
default
Note:
Most Celeron CPUs' frequency ratio are pre-locked
within the CPUs. These CPUs run at fixed speed
(frequency) regardless of the configurations listed above.
If the CPU you are using requires higher ratio then 5.5X, it
is most likely pre-locked.
Summary of Contents for PCM-6890
Page 1: ...PCM 6890 All in One Socket 370 Celeron Single Board Computer with LCD Ethernet Audio 4 COMs...
Page 11: ......
Page 12: ......
Page 19: ...Chapter 1 General Information 7 Board layout...
Page 24: ...12 PCM 6890 User Manual Locating jumpers SW1 J5 J9 J8 J10 J1 J2 J7 J6 J3 J4...
Page 92: ...80 PCM 6890 User Manual...
Page 116: ...104 PCM 6890 User Manual...
Page 124: ...112 PCM 6890 User Manual...
Page 128: ...116 PCM 6890 User Manual...
Page 129: ...Appendix C Optional Extras 117 C Optional Extras A P P E N D I X...
Page 132: ...120 PCM 7890 User Manual...
