III. INSTALLATION

Compatible Cyrix CPU Identification

The Cyrix CPU that is supported on this motherboard is labeled Cyrix 6x86 P166+ but must be Revision 2.7 and later. Look on the underside of the CPU for the serial number. The number should read G8DC6620A or larger.

8.Voltage Regulator Output Selection (JP20-JP26)

These jumpers set the voltage supplied to the CPU. Determine whether your CPU has a single power plane or dual power planes and then the voltage that it uses. Current Intel CPU's marked "Pentium" has only a single power plane and uses the standard 3.38 volts (STD) or 3.5 volts (VRE). When a single power plane CPU is installed, the dual power plane selections will be automatically disabled. When a dual power plane CPU is installed, the single power plane selections will be automatically disabled. You may have one jumper on the Single Power Plane and another on the Dual Power Planes at the same time.

Intel P54C Pentium Intel P55C Pentium AMD-K5

 

Cyrix 6x86 166+

(75-200MHz)

MMX (200MHz) (PR75-133MHz)

Rev2.7 (133MHz)

 

 

 

 

 

 

Single Power Plane

Type

Voltage

Dual Power Planes

Voltage

JP20 [short] (Default)

STD

3.38V

JP22

[short] (Default)

2.8V

JP21 [short]

 

 

VRE

3.5V

JP23 [short]

 

2.7V

 

 

 

 

 

 

 

 

 

JP24

[short]

 

2.9V

 

 

 

 

 

 

 

 

 

JP25

[short]

 

2.5V

 

 

 

 

 

 

 

 

 

JP26

[short]

 

Res.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

III. INSTALLATION (System Memory)

JP26

JP25

JP24

JP23

JP22

JP21

JP20

.Res

5V.2

9V.2

7V.2

8V.2

VRE

STD

(Default)

 

 

 

 

Voltage Regulator Output Selection

ASUS P/I-AP55TV User’s Manual

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