III. INSTALLATION

Compatible Cyrix CPU Identification

The only Cyrix 6x86-PR166+ CPU that is supported on this motherboard must be Revision 2.7 or later. Look on the underside of the CPU for the serial number. The number should read G8DC6620A or later.

6.Voltage Regulator Output Selection (VID0, 1, 2)

These jumpers set the voltage supplied to the CPU. Switching regulators allow some jumper settings to be the same for two voltages of different power planes.

INSTALLATION .III (Jumpers)

Pentium MMX (P55C) Intel Pentium (P54C)

AMD-K6

AMD-K5

IBM/Cyrix 6x86(MX)

IBM/Cyrix 6x86(M1)

(150MHz-233MHz) (75MHz-200MHz)

(PR166 and faster)

(PR75-PR133)

(PR166 and faster)

(PR166 and faster)

WARNING! Because CPU designs change rapidly, the table below is only intended as a simple guideline and thus may not be true for your CPU. Always refer to the CPU documentation for your CPU’s voltage and then set the appropriate VID jumpers according to the illustration below.

Manufacturer

CPU Type

Single Plane

Dual Plane

VID0

VID1 VID2

Intel

P54C/P54CS

3.5V(VRE)

----

 

[1-2]

[2-3]

[2-3]

AMD

K5

3.5V(VRE)

----

 

[1-2]

[2-3]

[2-3]

IBM/Cyrix

6x86

3.5V(VRE)

----

 

[1-2]

[2-3]

[2-3]

Intel

P54C/P54CS

3.4V(STD)

----

 

[2-3]

[2-3]

[2-3]

AMD

K5

3.4V(STD)

----

 

[2-3]

[2-3]

[2-3]

AMD (.35micron)

K6-PR233

----

 

3.2V(Dual)

[2-3] [2-3]

[1-2]

AMD (.35micron)

K6-166,200

----

 

2.9V(Dual)

[1-2] [2-3]

[2-3]

IBM/Cyrix

6x86MX

----

 

2.9V(Dual)

[1-2]

[2-3]

[2-3]

Intel

P55C-MMX

----

 

2.8V(Dual)

[2-3]

[2-3]

[2-3]

AMD (.25micron)

K6-233,266,300

----

 

2.2V(Dual)

[----]

[1-2]

[----]

 

VID2 VID1 VID0

VID2 VID1 VID0

VID0

VID2 VID1

VID2 VID1 VID0

VID1 VID0

VID2

VID2 VID1 VID0

 

1

1

1

 

1

1

 

1

 

2

2

2

 

2

2

 

2

 

3

3

3

 

3

3

 

3

 

2.0Volts

2.1Volts

2.2Volts

2.3Volts

2.4Volts

3.4V (STD)

 

1

1

1

 

1

1

 

1

 

2

2

2

 

2

2

 

2

 

3

3

3

 

3

3

 

3

 

2.5Volts

2.6Volts

2.7Volts

2.8Volts

2.9Volts

3.5V (VRE)

 

1

1

1

 

1

 

 

 

 

2

2

2

 

2

 

 

 

 

3

3

3

 

3

 

 

 

CPU Vcore Voltage Selection 3.0Volts

3.1Volts

3.2Volts

3.3Volts

 

Single Plane

 

 

Dual Plane CPU

 

 

 

 

18

ASUS TX97-LE User’s Manual