Home

    News

    Coolers

    Audio/Sound

    Articles

    Download

    Guides

    Forum

    Links

    Site Info

    Feedback

    Price

iMac DV ClockUp

INTRODUCTION

I analyzed how to increase the clock speed of a iMac DV.

If you adjust the set of Resisters labelled "R35" to "R42" which are "Logic Board", you may configure the Processor clock PLL.

First : Remove Display Connector cover.

Remove iMac bottum cover (6-Screw).

Remove iMac bottum shield (6-Screw).

Second : Configure the set of Resisters labelled "R35" to "R42" 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	R35	R37	R39	R41	R36	R38	R40	R42	Note
350MHz	x3.5	x	S	S	S	S	x	x	x	iMac Default
400MHz	x4	x	S	x	S	S	x	S	x	iMac DV Default
450MHz	x4.5	S	S	S	x	x	x	x	S
500MHz	x5	S	S	x	S	x	x	S	x
550MHz	x5.5	S	x	x	S	x	S	S	x
600MHz	x6	S	x	S	S	x	S	x	x
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
1 GHz	x10	x	S	S	x	S	x	x	S

• 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.

PS : Thank you for Mr.Nanko from Japan.