Yamaha SY-6ICA quick start Set the CPU Frequency, Set JP9 for FWH Boot Block Write-Protect

Hardware Installation

SY-6ICAQuick Start Guide

Step 4. Set the CPU Frequency

This Motherboard does not use any jumpers to set the CPU frequency; the CPU settings can be changed through the BIOS [SOYO COMBO SETUP]. Please refer to Chapter 3 “Quick BIOS Setup”for details on setting the CoppermineTM processor frequency.

Step 5. Set JP9 for FWH Boot Block Write-Protect

Setting this jumper to open will prevent the boot block area of the FWH (FirmWare Hub) chip from being written data into, such that it is write-protected from unwanted or abnormal write activity.

Note: In some rare cases, the boot block area will need to be flashed to complete the BIOS upgrade procedure. Setting JP9 to open will cause incomplete BIOS update in that case.

The FWH Boot Block	Locked		Unlocked
Write-Protect
JP9 Setting	open JP9		short JP9
	1	2	1	2

Step 6. Enable/Disable Power-On by Keyboard (JP1)

You may choose to enable the Power-On through Keyboard function by shorting pin 1-2 on jumper JP1; or short pin 2-3 to disable this function.

Power-On by	Enable		Disable
Keyboard
	Short pin 1-2 to		Short pin 2-3 and
JP1 Setting	enable the Power-		the Power-On by
	On by Keyboard		Keyboard function is
	function.	1 2 3	disabled.	1 2 3

Important: When using the Power-On by Keyboard function, please make sure the ATX power supply is able to provide at least 720mA on the 5V Standby lead (5VSB) in order to meet the standard ATX specification.

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