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TXB820DS
CPU
to Bus Frequency Ratio
| PCB
number |
35-8333-01/02/03 |
35-8333-04 |
| Ratio |
JP1 |
JP2 |
JP6 |
JP1 |
JP2 |
JP6 |
| 1.5X / 3.5X |
1-2 |
1-2 |
OPEN |
1-2 |
1-2 |
OPEN |
| 2X |
1-2 |
2-3 |
OPEN |
1-2 |
2-3 |
OPEN |
| 2.5X |
2-3 |
2-3 |
OPEN |
2-3 |
2-3 |
OPEN |
| 3X |
2-3 |
1-2 |
OPEN |
2-3 |
1-2 |
OPEN |
| 4X* |
N/A |
N/A |
N/A |
1-2 |
2-3 |
2-3 |
| 4.5X* |
N/A |
N/A |
N/A |
2-3 |
2-3 |
2-3 |
| *For
AMD K6 series CPU 266MHz or 300MHz only. |
CPU
External Clock BUS Frequency
| PCB
number. |
35-8333-01 |
35-8333-02/03 |
35-8333-04 |
| Bus
Frequency |
JP3 |
JP4 |
JP5 |
JP3 |
JP4 |
JP5 |
JP3 |
JP4 |
JP5 |
| 50 |
1-2
|
2-3 |
2-3 |
N/A |
N/A |
N/A |
2-3 |
2-3 |
2-3 |
| 55 |
1-2 |
2-3 |
1-2 |
N/A |
N/A |
N/A |
2-3 |
2-3 |
1-2 |
| 60 |
1-2 |
1-2 |
2-3 |
1-2 |
2-3 |
2-3 |
1-2 |
2-3 |
2-3 |
| 66 |
1-2 |
1-2 |
1-2 |
2-3 |
1-2 |
2-3 |
2-3 |
1-2 |
2-3 |
CPU
Core Voltage
| PCB
number. |
35-8333-01/02/03 |
| Core
Voltage (V) |
JP11 |
| 2.5 |
5-6 |
| 2.7 |
7-8 |
| 2.8 |
9-10 |
| 2.9 |
11-12 |
| 3.2 |
13-14 |
| 3.3 |
15-16 |
| 3.5 |
17-18 |
| PCB
number |
35-8333-04
|
Core
Voltage
(V)
|
JP11
|
Core
Voltage
(V)
|
JP11
|
PIN 1 --> PIN 10
|
PIN 1 --> PIN 10
|
2.2
|
OP
CL OP OP OP
|
2.9
|
CL
OP OP CL OP
|
2.3
|
CL
CL OP OP OP
|
3.0
|
OP
CL OP CL OP
|
2.4
|
OP
OP CL OP OP
|
3.1
|
CL
CL OP CL OP
|
2.5
|
CL
OP CL OP OP
|
3.2 |
OP OP CL CL OP |
2.6
|
OP
CL CL OP OP
|
3.3 |
CL OP CL CL OP |
2.7
|
CL
CL CL OP OP
|
3.4 |
OP CL CL CL OP |
2.8
|
OP
OP OP CL OP
|
3.5 |
CL CL CL CL CL |
| OP =
OPEN, CL=CLOSE |
CPU
BUS Section
| PCB
number |
35-8333-01/02/03 |
35-8333-04 |
| BUS
Section |
JP12,
JP13, JP14, JP15 |
JP12,
JP13 |
| P54C |
2-3 |
2-3 |
| P55C |
1-2 |
1-2 |
CPU
BUS Voltage
| PCB
number |
35-8333-01/02/03 |
35-8333-04 |
| BUS
Voltage |
JP16 |
JP16 |
| 3.3V |
2-3 |
OPEN |
| 3.5V |
1-2 |
CLOSE |
Clear
CMOS
Selection
|
JP31
|
NORMAL
|
1-2
|
CLEAR
|
2-3
|
DIMM
Voltage
DIMM Voltage
|
JP25, JP26, *JP27
|
3.3V
|
OPEN
|
3.5V
|
CLOSE
|
*Not available on 35-8333-04
|
LXA800D / LXB801D
CPU
to Bus Frequency Ratio
7-8
|
5-6
|
3-4
|
1-2
|
JP 7 CPU to Bus
Frequency Ratio
|
CL
|
OP
|
OP
|
CL
|
3.5X
|
CL
|
CL
|
CL
|
OP
|
4X
|
CL
|
OP
|
CL
|
OP
|
4.5X
|
CL
|
CL
|
OP
|
OP
|
5X
|
CL
|
OP
|
OP
|
OP
|
5.5X
|
OP
|
CL
|
CL
|
CL
|
6X
|
OP
|
OP
|
CL
|
CL
|
6.5X
|
OP
|
CL
|
OP
|
CL
|
7X
|
OP
|
OP
|
OP
|
CL
|
7.5X
|
OP
|
CL
|
CL
|
OP
|
8X
|
| OP=OPEN,
CL=CLOSE |
SIM819D
CPU
to Bus Frequency Ratio
JP1
|
JP2
|
JP3
|
JP4
|
CPU to Bus
Frequency Ratio
|
1-2
|
1-2
|
2-3
|
2-3
|
3.5X
|
1-2
|
2-3
|
1-2
|
1-2
|
4X
|
1-2
|
2-3
|
2-3
|
1-2
|
4.5X
|
1-2
|
2-3
|
1-2
|
2-3
|
5X
|
1-2
|
2-3
|
2-3
|
2-3
|
5.5X
|
2-3
|
1-2
|
1-2
|
1-2
|
6X
|
2-3
|
1-2
|
2-3
|
1-2
|
6.5X
|
2-3
|
1-2
|
1-2
|
2-3
|
7X
|
2-3
|
1-2
|
2-3
|
2-3
|
7.5X
|
2-3
|
2-3
|
1-2
|
1-2
|
8X
|
CPU
External Clock BUS Frequency
Bus
speed
|
JP6
|
JP8
|
66
|
1-2
|
1-2
|
100
|
2-3
|
2-3
|
Sound
Enable
Selection
|
JP38
|
JP39
|
JP40
|
Enable
Sound
|
1-2
|
1-2
|
1-2
|
Disable
Sound
|
2-3
|
2-3
|
2-3
|
Clear
CMOS
Selection
|
JP31
|
NORMAL
|
2-3
|
CLEAR
|
1-2
|
VIB838DS
CPU
to Bus Frequency Ratio
JP1
|
CPU
to Bus Frequency Ratio
|
| PIN
6 <--PIN 1 |
AMD K6
|
Pentium MMX/
6x86 MX/ 6X86 MII
|
OP
CL OP
|
3X
|
3X
|
OP
CL CL
|
2.5X
|
2.5X
|
OP
OP CL
|
2X
|
2X
|
OP
OP OP
|
3.5X
|
3.5X
|
CL
OP CL
|
4X
|
N/A
|
CL
CL CL
|
4.5X
|
N/A
|
CL
CL OP
|
5X
|
N/A
|
CL
OP OP
|
5.5X
|
N/A
|
| OP =
OPEN, CL=CLOSE |
CPU
External Clock BUS Frequency
Bus
speed
|
SDRAM
speed
|
JCK1
|
JCK2
|
JCK3
|
JCK4
|
AGP
clock
|
PCI
clock
|
JAGP1
|
JAGP2
|
JAGP3
|
100
|
*100
|
1-2
|
1-2
|
1-2
|
1-2
|
66
|
33
|
1-2
|
2-3
|
2-3
|
100
|
66
|
2-3
|
1-2
|
1-2
|
1-2
|
66
|
33
|
1-2
|
1-2
|
2-3
|
95
|
*95
|
1-2
|
1-2
|
1-2
|
2-3
|
63.4
|
31.7
|
1-2
|
2-3
|
2-3
|
95
|
63.4
|
2-3
|
1-2
|
1-2
|
2-3
|
63.4
|
31.7
|
1-2
|
1-2
|
2-3
|
83
|
*83
|
1-2
|
1-2
|
2-3
|
1-2
|
66
|
33
|
1-2
|
2-3
|
1-2
|
83
|
66
|
2-3
|
1-2
|
2-3
|
1-2
|
66
|
33
|
1-2
|
1-2
|
1-2
|
75
|
*75
|
1-2
|
2-3
|
1-2
|
1-2
|
75
|
37.5
|
2-3
|
2-3
|
1-2
|
75
|
60
|
2-3
|
1-2
|
2-3
|
2-3
|
60
|
30
|
1-2
|
1-2
|
1-2
|
68
|
68
|
1-2
|
2-3
|
1-2
|
2-3
|
68
|
34
|
2-3
|
2-3
|
OPEN
|
66
|
66
|
1-2
|
2-3
|
2-3
|
1-2
|
66
|
33
|
2-3
|
2-3
|
OPEN
|
60
|
60
|
1-2
|
2-3
|
2-3
|
2-3
|
60
|
30
|
2-3
|
2-3
|
OPEN
|
| *For PC-100 SDRAM only. |
CPU
Core Voltage
Core
Voltage
(V)
|
JPW1
|
Core
Voltage
(V)
|
JPW1
|
PIN 8 <--PIN 1
|
PIN 8 <--PIN 1
|
2.0
|
OP
OP OP OP
|
2.8
|
OP
OP OP CL
|
2.1
|
CL
OP OP OP
|
2.9
|
CL
OP OP CL
|
2.2
|
OP
CL OP OP
|
3.0
|
OP
CL OP CL
|
2.3
|
CL
CL OP OP
|
3.1
|
CL
CL OP CL
|
2.4
|
OP
OP CL OP
|
3.2
|
OP
OP CL CL
|
2.5
|
CL
OP CL OP
|
3.3
|
CL
OP CL CL
|
2.6
|
OP
CL CL OP
|
3.4
|
OP
CL CL CL
|
2.7
|
CL
CL CL OP
|
3.5
|
CL
CL CL CL
|
| OP =
OPEN, CL=CLOSE |
Clear
CMOS
Selection
|
JVBAT1
|
NORMAL
|
1-2
|
CLEAR
|
2-3
|
VIB876S
CPU
to Bus Frequency Ratio
JP1
|
JP2
|
JP6
|
CPU
to Bus Frequency Ratio
|
AMD K6
|
Pentium MMX/
6x86 MX/ 6X86 MII
|
2-3
|
1-2
|
OPEN
|
3X
|
3X
|
2-3
|
2-3
|
OPEN
|
2.5X
|
2.5X
|
1-2
|
2-3
|
OPEN
|
2X
|
2X
|
1-2
|
1-2
|
OPEN
|
3.5X
|
3.5X
|
1-2
|
2-3
|
2-3
|
4X
|
N/A
|
2-3
|
2-3
|
2-3
|
4.5X
|
N/A
|
2-3
|
1-2
|
2-3
|
5X
|
N/A
|
1-2
|
1-2
|
2-3
|
5.5X
|
N/A
|
CPU
External Clock BUS Frequency
Bus,
SDRAM
speed
|
JP3
|
JP4
|
JP5
|
JP8
|
PCI
clock
|
*100
|
2-3
|
2-3
|
2-3
|
1-2
|
33
|
*95
|
1-2
|
2-3
|
2-3
|
1-2
|
31.7
|
*83
|
1-2
|
2-3
|
1-2
|
2-3
|
41
|
*83
|
2-3
|
1-2
|
2-3
|
1-2
|
27
|
| 80 |
1-2 |
1-2 |
2-3 |
1-2 |
26.6 |
| 75 |
1-2 |
1-2 |
1-2 |
2-3 |
37.5 |
*75
|
2-3
|
2-3
|
1-2
|
1-2
|
25
|
| 70 |
1-2 |
2-3 |
1-2 |
1-2 |
35 |
66
|
2-3
|
1-2
|
1-2
|
1-2
|
33
|
60
|
1-2
|
1-2
|
1-2
|
1-2
|
30
|
*For PC-100
SDRAM only.
|
CPU
Core Voltage
Core
Voltage
(V)
|
JP11
|
Core
Voltage
(V)
|
JP11
|
PIN 10 <--PIN 1
|
PIN 10 <--PIN 1
|
1.8
|
CL
CL OP CL OP
|
2.6
|
OP
OP CL CL OP
|
1.85
|
CL
CL OP CL CL
|
2.7
|
OP
OP CL CL CL
|
1.9
|
CL
CL CL OP OP
|
2.8
|
OP
CL OP OP OP
|
1.95
|
CL
CL CL OP CL
|
2.9
|
OP
CL OP OP CL
|
2.0
|
CL
CL CL CL OP
|
3.0
|
OP
CL OP CL OP
|
2.05
|
CL
CL CL CL CL
|
3.1
|
OP
CL OP CL CL
|
2.1
|
OP
OP OP OP CL
|
3.2
|
OP
CL CL OP OP
|
2.2
|
OP
OP OP CL OP
|
3.3
|
OP
CL CL OP CL
|
2.3
|
OP
OP OP CL CL
|
3.4
|
OP
CL CL CL OP
|
2.4
|
OP
OP CL OP OP
|
*3.5
|
OP
OP OP OP OP
|
2.5
|
OP
OP CL OP CL
|
|
|
OP =
OPEN, CL=CLOSE
*Amended. |
System
Power Supply
Selection
|
JP39
|
JP39 |
For
Double voltage
|
1-2
|
1-2 |
For
Single voltage
|
2-3
|
2-3 |
Clear
CMOS
Selection
|
JP31
|
NORMAL
|
1-2
|
CLEAR
|
2-3
|
Sound
Connectors
Connector
|
CN23
|
CN25
|
CN27
|
Function
|
CD
IN
|
AUX
IN
|
LINE
OUT
|
Pin
1 --> 4
|
GLGR
|
LGGR
|
LGRG
|
VIB878DS
CPU
to Bus Frequency Ratio
JP1
|
JP2
|
JP6
|
CPU
to Bus Frequency Ratio
|
AMD K6
|
Pentium MMX/
6x86 MX/ 6X86 MII
|
2-3
|
1-2
|
OPEN
|
3X
|
3X
|
2-3
|
2-3
|
OPEN
|
2.5X
|
2.5X
|
1-2
|
2-3
|
OPEN
|
2X
|
2X
|
1-2
|
1-2
|
OPEN
|
3.5X
|
3.5X
|
1-2
|
2-3
|
2-3
|
4X
|
N/A
|
2-3
|
2-3
|
2-3
|
4.5X
|
N/A
|
2-3
|
1-2
|
2-3
|
5X
|
N/A
|
1-2
|
1-2
|
2-3
|
5.5X
|
N/A
|
CPU
External Clock BUS Frequency
Bus
speed
|
SDRAM
speed
|
JP3
|
JP4
|
JP5
|
JP8
|
AGP
clock
|
PCI
clock
|
JP12
|
JP13
|
JP14
|
100
|
*100
|
1-2
|
1-2
|
1-2
|
1-2
|
66
|
33
|
2-3
|
1-2
|
2-3
|
100
|
66
|
1-2
|
1-2
|
1-2
|
2-3
|
66
|
33
|
1-2
|
1-2
|
2-3
|
95
|
*95
|
2-3
|
1-2
|
1-2
|
1-2
|
63.4
|
31.7
|
2-3
|
1-2
|
2-3
|
95
|
63.4
|
2-3
|
1-2
|
1-2
|
2-3
|
63.4
|
31.7
|
1-2
|
1-2
|
2-3
|
83
|
*83
|
1-2
|
2-3
|
1-2
|
1-2
|
66
|
33
|
2-3
|
1-2
|
1-2
|
83
|
66
|
1-2
|
2-3
|
1-2
|
2-3
|
66
|
33
|
1-2
|
1-2
|
1-2
|
75
|
*75
|
1-2
|
1-2
|
2-3
|
1-2
|
75
|
37.5
|
2-3
|
2-3
|
1-2
|
68
|
68
|
2-3
|
1-2
|
2-3
|
1-2
|
68
|
34
|
2-3
|
2-3
|
OPEN
|
66
|
66
|
1-2
|
2-3
|
2-3
|
1-2
|
66
|
33
|
2-3
|
2-3
|
OPEN
|
| *For PC-100 SDRAM only. |
CPU
Core Voltage
Core
Voltage
(V)
|
JP11
|
Core
Voltage
(V)
|
JP11
|
PIN 10 <--PIN 1
|
PIN 10 <--PIN 1
|
1.8
|
CL
CL OP CL OP
|
2.6
|
OP
OP CL CL OP
|
1.85
|
CL
CL OP CL CL
|
2.7
|
OP
OP CL CL CL
|
1.9
|
CL
CL CL OP OP
|
2.8
|
OP
CL OP OP OP
|
1.95
|
CL
CL CL OP CL
|
2.9
|
OP
CL OP OP CL
|
2.0
|
CL
CL CL CL OP
|
3.0
|
OP
CL OP CL OP
|
2.05
|
CL
CL CL CL CL
|
3.1
|
OP
CL OP CL CL
|
2.1
|
OP
OP OP OP CL
|
3.2
|
OP
CL CL OP OP
|
2.2
|
OP
OP OP CL OP
|
3.3
|
OP
CL CL OP CL
|
2.3
|
OP
OP OP CL CL
|
3.4
|
OP
CL CL CL OP
|
2.4
|
OP
OP CL OP OP
|
*3.5
|
OP
OP OP OP OP
|
2.5
|
OP
OP CL OP CL
|
|
|
OP =
OPEN, CL=CLOSE
*Amended. |
Clear
CMOS
Selection
|
JP31
|
NORMAL
|
1-2
|
CLEAR
|
2-3
|
Sound
Connectors
Connector
|
CN23
|
CN24
|
CN25
|
Function
|
CD
IN
|
CD
IN
|
AUX
IN
|
Pin
1 --> 4
|
GLGR
|
LGGR
|
LGGR
|
VIB804DS/ VIB814DS
| |
Cyrix
6x86MX
-Pr233 |
Cyrix
6x86MX
-Pr266 |
Cyrix
MII-300 / IBM 6x86MX-300 |
AMD
K6-266/
AMD K6-2
266 |
AMD
K6-300 |
| |
|
|
|
|
|
| CPU voltages |
2.9V/3.3V |
2.9V/3.3V |
2.9V/3.3V |
2.2V/3.3V |
2.2V/3.5V |
| JP11 |
1-2, 7-8 |
1-2, 7-8 |
1-2, 7-8 |
3-4 |
3-4 |
| JP16 |
2-3 |
2-3 |
2-3 |
2-3 |
1-2 |
| JP12,JP13,JP14 |
1-2,1-2,1-2 |
1-2,1-2,1-2 |
1-2,1-2,1-2 |
1-2,1-2,1-2 |
1-2,1-2,1-2 |
| |
|
|
|
|
|
| CPU Speed |
66MHz x 3 |
66MHz x 3.5 |
66MHz x 3.5 |
66MHz x 4 |
66MHz x 4.5 |
| JP3,JP4,JP5 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
| JP1,JP2,JP6 |
2-3,1-2,Open |
1-2,1-2,Open |
1-2,1-2,Open |
1-2,2-3,2-3 |
2-3,2-3,2-3 |
| |
|
|
|
|
|
| CPU Speed |
75MHz x 2.5 |
75MHz x 3 |
75MHz x 3 |
N/A |
N/A |
| JP3,JP4,JP5 |
1-2,2-3,1-2 |
1-2,2-3,1-2 |
1-2,2-3,1-2 |
N/A |
N/A |
| JP1,JP2,JP6 |
2-3,2-3,Open |
2-3,1-2,Open |
2-3,1-2,Open |
N/A |
N/A |
VIB806DS
| |
Cyrix
6x86MX
-Pr233 |
Cyrix
6x86MX
-Pr266 |
Cyrix
MII-300 / IBM 6x86MX-300 |
AMD
K6-266/
AMD K6-2
266 |
AMD
K6-300 |
| |
|
|
|
|
|
| CPU voltages |
2.9V/3.3V |
2.9V/3.3V |
2.9V/3.3V |
2.2V/3.3V |
2.2V/3.5V |
| JP11 |
1-2, 7-8 |
1-2, 7-8 |
1-2, 7-8 |
3-4 |
3-4 |
| JP16 |
CLOSED |
CLOSED |
CLOSED |
CLOSED |
OPEN |
| JP12,JP13 |
1-2,1-2 |
1-2,1-2 |
1-2,1-2 |
1-2,1-2 |
1-2,1-2 |
| |
|
|
|
|
|
| CPU Speed |
66MHz x 3 |
66MHz x 3.5 |
66MHz x 3.5 |
66MHz x 4 |
66MHz x 4.5 |
| JP3,JP4,JP5 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
| JP1,JP2,JP6 |
2-3,1-2,Open |
1-2,1-2,Open |
1-2,1-2,Open |
1-2,2-3,2-3 |
2-3,2-3,2-3 |
| |
|
|
|
|
|
| *CPU Speed |
75MHz x 2.5 |
75MHz x 3 |
75MHz x 3 |
N/A |
N/A |
| JP3,JP4,JP5 |
1-2,2-3,1-2 |
1-2,2-3,1-2 |
1-2,2-3,1-2 |
N/A |
N/A |
| JP1,JP2,JP6 |
2-3,2-3,Open |
2-3,1-2,Open |
2-3,1-2,Open |
N/A |
N/A |
TXB830DS
| |
Cyrix
6x86MX
-Pr233 |
Cyrix
6x86MX
-Pr266 |
Cyrix
MII-300 / IBM 6x86MX-300 |
AMD
K6-266/
AMD K6-2
266 |
AMD
K6-300 |
| |
|
|
|
|
|
| CPU voltages |
2.9V/3.3V |
2.9V/3.3V |
2.9V/3.3V |
2.2V/3.3V |
2.2V/3.5V |
| JP11 |
1-2, 7-8 |
1-2, 7-8 |
1-2, 7-8 |
3-4 |
3-4 |
| JP16 |
CLOSED |
CLOSED |
CLOSED |
CLOSED |
OPEN |
| JP12,JP13 |
1-2,1-2 |
1-2,1-2 |
1-2,1-2 |
1-2,1-2 |
1-2,1-2 |
| |
|
|
|
|
|
| CPU Speed |
66MHz x 3 |
66MHz x 3.5 |
66MHz x 3.5 |
66MHz x 4 |
66MHz x 4.5 |
| JP3,JP4,JP5 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
2-3,1-2,2-3 |
| JP1,JP2,JP6 |
2-3,1-2,Open |
1-2,1-2,Open |
1-2,1-2,Open |
1-2,2-3,2-3 |
2-3,2-3,2-3 |
| |
|
|
|
|
|
| *CPU Speed |
75MHz x 2.5 |
75MHz x 3 |
75MHz x 3 |
N/A |
N/A |
| JP3,JP4,JP5 |
1-2,2-3,1-2 |
1-2,2-3,1-2 |
1-2,2-3,1-2 |
N/A |
N/A |
| JP1,JP2,JP6 |
2-3,2-3,Open |
2-3,1-2,Open |
2-3,1-2,Open |
N/A |
N/A |
|
