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Iii. installation, Compatible cyrix cpu identification, 18 asus p5a-b user’s manual – Asus P5A-B User Manual

Page 18

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18

ASUS P5A-B User’s Manual

III. INSTALLATION

Jumpers

III. INST

ALLA

TION

5. Voltage Regulator Output Selection (VID0, 1, 2, 3)

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.

WARNING!

Because CPU designs change rapidly, the table below is only in-

tended 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 appro-
priate VID jumpers according to the illustration below.

Manufacturer

CPU Type

Single Plane

Dual Plane

VID0 VID1 VID2 VID3

AMD (.25micron) K6-III/400,450

----

2.4V(Dual)

[1-2] [1-2] [2-3] [1-2]

K6-2/450,475

AMD (.25micron) K6-2/266,300,333,

----

2.2V(Dual)

[1-2] [2-3] [1-2] [1-2]

350,366,380,400
K6-233,266,300

AMD

K5

3.5V(VRE)

----

[2-3] [2-3] [2-3] [2-3]

IBM/Cyrix

6x86

3.5V(VRE)

----

[2-3] [2-3] [2-3] [2-3]

Intel

P54C/P54CS

3.5V(VRE)

----

[2-3] [2-3] [2-3] [2-3]

AMD

K5

3.4V(STD)

----

[1-2] [2-3] [2-3] [2-3]

Intel

P54C/P54CS

3.4V(STD)

---

[1-2] [2-3] [2-3] [2-3]

AMD (.35micron) K6-PR233

----

3.2V(Dual)

[1-2] [1-2] [2-3] [2-3]

AMD (.35micron) K6-166,200

----

2.9V(Dual)

[2-3] [1-2] [1-2] [2-3]

IBM/Cyrix

6x86MX

----

2.9V(Dual)

[2-3] [1-2] [1-2] [2-3]

Intel

P55C-MMX

----

2.8V(Dual)

[1-2] [1-2] [1-2] [2-3]

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 un-
derside of the CPU for the serial number. The number should
read G8DC6620A or later.

P5A-B CPU Vcore Voltage Selection

1
2
3

1
2
3

1
2
3

VID2

VID1

VID0

2.1Volts

VID3

2.2Volts

2.3Volts

2.5Volts

2.7Volts

2.8Volts

2.9Volts

3.0Volts

3.1Volts

3.2Volts

3.3Volts

3.4Volts

3.5Volts

2.0Volts

2.4Volts

2.6Volts

1
2
3

VID2

VID1

VID0

VID3

VID2

VID1

VID0

VID3

VID2

VID1

VID0

VID3

VID2

VID1

VID0

VID3

R