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<blockquote data-quote="DanielNTX" data-source="post: 108509" data-attributes="member: 10066">I've update my OpenFirmware scripting instuctions for those who overclocked their Mac mini's to 1.58GHz and don't want 750MHz displayed in About This Mac and in Xbench's L2 Cache speed.If you want to read more about this work: <a href="http://macminiforums.com/forums/showthread.php?t=178" target="_blank">read this thread</a>Here it is:Here's how to fix About This Mac, More Info... and also the L2 Cache reported speed in Xbench:These are the values for 1.58GHz overclock:1.58 GHz PowerPC G45e2ce2fd = 1579999997 = &quot; clock frequency&quot;5e1da0c0 = 1579000000 = &quot; rounded-clock-frequency&quot;5e178682 = 1578600066 = &quot; recalced-clock-frequency&quot;Here's the instructions on how to persist the 1.58GHz into the system so that &quot;About This Mac&quot; works properly:1. Reboot the computer holding down Cmd-Opt-O-F to enter the Open Firmware command line.2. Type nvedit and press Return3. Enter the following script exactly, pressing Return at the end of each line.[code]dev /9eb18ef encode-int &quot; clock-frequency&quot; propertydev /cpusdev PowerPC,G4@05e2ce2fd encode-int &quot; clock-frequency&quot; property9eb18ef encode-int &quot; bus-frequency&quot; property5e1da0c0 encode-int &quot; rounded-clock-frequency&quot; property5e178682 encode-int &quot; recalced-clock-frequency&quot; property27ac63b encode-int &quot; timebase-frequency&quot; propertydev l2-cache5e2ce2fd encode-int &quot; clock-frequency&quot; propertydev /[/code]4. Press Ctrl-C to exit the editor.5. Type nvstore and press Return6. Type setenv use-nvramrc? true and then press Return7. Type reset-all and press Return- Daniel</blockquote>

[QUOTE="DanielNTX, post: 108509, member: 10066"] I've update my OpenFirmware scripting instuctions for those who overclocked their Mac mini's to 1.58GHz and don't want 750MHz displayed in About This Mac and in Xbench's L2 Cache speed. If you want to read more about this work: [url=http://macminiforums.com/forums/showthread.php?t=178]read this thread[/url] Here it is: Here's how to fix About This Mac, More Info... and also the L2 Cache reported speed in Xbench: These are the values for 1.58GHz overclock: 1.58 GHz PowerPC G4 5e2ce2fd = 1579999997 = " clock frequency" 5e1da0c0 = 1579000000 = " rounded-clock-frequency" 5e178682 = 1578600066 = " recalced-clock-frequency" Here's the instructions on how to persist the 1.58GHz into the system so that "About This Mac" works properly: 1. Reboot the computer holding down Cmd-Opt-O-F to enter the Open Firmware command line. 2. Type [b]nvedit[/b] and press Return 3. Enter the following script exactly, pressing Return at the end of each line. [code]dev / 9eb18ef encode-int " clock-frequency" property dev /cpus dev PowerPC,G4@0 5e2ce2fd encode-int " clock-frequency" property 9eb18ef encode-int " bus-frequency" property 5e1da0c0 encode-int " rounded-clock-frequency" property 5e178682 encode-int " recalced-clock-frequency" property 27ac63b encode-int " timebase-frequency" property dev l2-cache 5e2ce2fd encode-int " clock-frequency" property dev /[/code] 4. Press [b]Ctrl-C[/b] to exit the editor. 5. Type [b]nvstore[/b] and press Return 6. Type [b]setenv use-nvramrc? true[/b] and then press Return 7. Type [b]reset-all[/b] and press Return - Daniel [/QUOTE]

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