Getting Started with the PowerLeap
™
PL-K6-III
7
PowerLeap
™
Installation Guide
SW1: Pins 4, 5, 6, 7, & 8 (Core Voltage)
To reduce power consumption, dual-voltage CPUs use two separate supply
voltages: an I/O interface voltage and a lower core voltage for the processor. The
default core voltage for the PL-K6-III is 2.4V (for the AMD K6-III CPU).
Pins 4, 5, 6, 7, & 8: Core Voltage for AMD K6-III
Core Voltage
2.4V
CPU Type
K6-III
SW1: Pin 4
OFF
SW1: Pin 5
OFF
SW1: Pin 6
ON
SW1: Pin 7
OFF
SW1: Pin 8
OFF
For a complete listing of supported core voltage settings,
refer to “Technical Reference” later in this document.
SW1: Pin 9 (Pin AL-1 Compatibility)
Pin 9 of SW1 lets you enable/disable the pin signal for split-voltage detection. This
function provides compatibility for certain HP Vectra and Biostar systems that
check the signal.
For split-voltage CPUs, certain HP Vectra (VL100 and VL5/133 Series 5 DT)
systems and certain Biostar motherboards (8500TUD and M5ALA) check for the
presence of a signal from pin AL-1. Unfortunately, these systems use the AL-1 pin
signal differently: the signal must be disabled in order for the HP Vectra systems to