Yamaha SY-6ICA quick start CPU Safe Mode JP7, Cmos Clear JP5

Hardware Installation

SY-6ICAQuick Start Guide

Step 9. CPU Safe Mode (JP7)

If the user overclocks the system there is always the risk that the system will not boot up properly. In that case closing JP7 will force system to use the actual CPU multiplier to boot up. The boot-up sequence in that case will be as follows:

Ø-The system will start up with the lowest multiplier available.

Ø-The BIOS will now read the CPU-ID code and set the multiplier in accordance with it.

Ø-The system will boot up normally with the actual (non-overclock) CPU frequency.

CPU Safe Mode	Normal		Force actual CPU Frequency
JP7 Setting	Open JP7		Close JP7
	1	2	1 2

Note: After properly booting up, set JP7 back to open again.

Step 10. CMOS Clear (JP5)

After you have turned off your computer, clear the CMOS memory by momentarily shorting pins 2-3 on jumper JP5, for a few seconds. Then restore JP5 to the initial 1-2 jumper setting in order to recover and retain the default settings.

Jumper JP5 can be easily identified by its white colored cap.

CMOS Clearing	Clear CMOS Data			Retain CMOS Data
	Short pin 2-3 for			Short pin 1-2 to
JP5 Setting at least 5 seconds to				retain new
	clear the CMOS			settings
	1	2	3	1	2	3

Note: You must unplug the ATX power cable from the ATX power connector when performing the CMOS Clear operation.

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