To Fix "About this mac"
1.) Go to /System/Library/CoreServices (manually, not in terminal)
2.) Find the file "loginwindow", Right click-->Show package contents.
3.) Then browse to /Contents/Resources/English.lproj
4.) Copy the file "AboutThisMac" to the desktop.
5.) Open with Text Editor
6.) Find the line "ABOUT_BOX_MULTIPLE_PROCESSORS_FIELD_FORMAT" (line without the / at the begining
7.) Edit the Value of "%@" after the equal sign to say whatever you
want it to say in about this mac for processor. For example
"ABOUT_BOX_MULTIPLE_PROCESSORS_FIELD_FORMAT" = "2.4 GHz Intel Core 2 Quad, Q6600";
8.) Do the same for the line "ABOUT_BOX_SINGLE_PROCESSOR_FIELD_FORMAT"
= "2.4 GHz Intel Core 2 Quad, Q6600"; (don't know if it makes a
difference doing it for this one as well.
9.) Next, we can edit what we want it to say for Memory: Find the line
"ABOUT_BOX_MEMORY_FIELD_FORMAT" =. It is near the bottom of the page.
10.) Change the Value after the equal sign to whatever you want. For
"ABOUT_BOX_MEMORY_FIELD_FORMAT" = "4GB Corsair DDR2 800MHz";
11.) Now save the file on your desktop.
12.) Right click on it-->Get info. Make sure the extensions is .strings and not .txt
13.) Delete the original "AboutThisMac" file by dragging it into the trash can.. you will need to authenticate.
14.) Drag the new "AboutThisMac" from the desktop in its place in the "English.lproj" folder.
15.) No need to restart, reopen About This Mac and see your changes.