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iMac SE/600 ClockUp

INTRODUCTION

I analyzed how to increase the clock speed of a iMac SE/600.

If you adjust the set of Resisters labelled "R159" to "R162" and "R165" to "R168" which are "Logic Board", you may configure the Processor clock PLL.

Configure the set of Resisters labelled "R159" to "R162" and "R165" to "R168" which are "Logic Board".

This infomation is not confirmation of stability operation. Please note that any modifications you make to your Macintosh are made at your own risk.

TUNE-UP METHOD...

CPUClock	PLLConfig	R159	R160	R161	R162	R165	R166	R167	R168	Note
600MHz	x6	S	x	S	S	x	S	x	x	Default
650MHz	x6.5	S	x	S	x	x	S	x	S
700MHz	x7	x	S	x	x	S	x	S	S
750MHz	x7.5	S	x	x	x	x	S	S	S
800MHz	x8	x	x	S	S	S	S	x	x

• S:Mount Resister

• x:Remove Resister

Bench Mark (SystemInfo / Norton Utilities)

Read Me First !
Please note that any modifications you make to your iMac are made at your own risk. I am not repsonsible or liable for any problems you may incur as a result of any modifactions you make to your iMac. Please note you must view my text AS WELL AS THE CONTAINED PHOTOS in order to make appropriate modifications to your iMac.

P.S. Thank you for Mr.Ohta from Japan.