Soyo SY-5S User Manual

Hardware Setup

SY-5STM

2-1 CPU VOLTAGE SETTING (JP17, JP30)

JP17 and JP30 are the only jumpers that you need to set for your

CPU voltage on this mainboard.

There are two kinds of CPU voltages currently on the market

depending on the CPU manufacturer:

Ø Single Voltage (CPU: P54C, AMD-K5, Cyrix 6x86, IDT

WinChip C6)

Ø Dual Voltage

(CPU: P55C, AMD-K6, AMD-K6-2 Cyrix

6x86L,Cyrix 6x86MX, Cyrix M

)

Those processors may come in various voltages on different

markets. Therefore, always make sure you know the type of the

CPU you are installing and adjust the settings on JP17 and JP30

accordingly.

This motherboard supports CPU voltages from 2.0 to 3.52V in 0.1V

increments. Use the following tables to set the CPU voltage jumpers

JP17 and JP30 to match the voltage value of your CPU:

Voltage Type: JP17

CPU Voltage Setting: JP30

Voltage

Type

1-2

3-4

Voltage

Value

1-2

3-4

5-6

7-8

9-10

Single * open

open

3.52V*

open short short short short

Dual

short short

3.3V

open short short open short

3.2V

open short short open

open

3.1V

open short open short short

3.0V

open short open short open

2.9V

open short open

open short

2.8V

open short open

open

2.7V

open

open short short short

2.5V

open

open short open short

2.2V

open

open short open

2.1V

open

open short

Refer to the tables CPU Voltage Settings for Various Processors

on pages 9 and 10 for detailed settings of JP17 and JP30.