MacBook, MacBook Pro, MacBook Air EFI firmware updates
Posted Apr 8th 2008 6:15PM by Cory Bohon
Filed under: Software Update

Today, Apple updated the EFI Firmware for the entire notebook line.
MacBook,
MacBook Pro, and
MacBook Air all received the EFI update. Here's what Apple says about the updates:
This update fixes several issues to improve the stability of [MacBook, MacBook Pro, and MacBook Air] computers.
You can download this update by opening Software Update on your notebook (Apple menu > Software Update) or by downloading the installer package from
Apple's support website.
Apple also notes:
To complete the firmware update process, please follow the instructions in the updater application (/Applications/Utilities/MacBook EFI Firmware Update.app). The updater will launch automatically when the Installer closes.
Thanks to everyone who sent this in!Tags: EFI, firmware, MacBook, MacBook Air, MacBook Pro, MacbookAir, MacbookPro
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Reader Comments (Page 1 of 3)
4-08-2008 @ 6:22PM
Cody Mauer said...
i should get credit for sending this in to your guys :/
Reply
4-08-2008 @ 6:32PM
Jackinloadup said...
well thanks for sending it in
4-08-2008 @ 6:34PM
Tyrannous said...
no i should get a credit.
4-08-2008 @ 6:36PM
Cory Bohon said...
Sorry about that Cody (and everyone); my e-mail has been down all day and I just received about 100 e-mails all at once. I am adding this to the post now. :-)
4-08-2008 @ 6:41PM
Ray said...
NO! I SHOULD!! lol
4-08-2008 @ 7:15PM
Tyrannous said...
im joking, i hope cody is...
4-08-2008 @ 7:17PM
Cody Mauer said...
yeah i was joking haha :)
4-09-2008 @ 12:34AM
Paul said...
+credit
4-09-2008 @ 1:57AM
Tyrannous said...
kudos
4-09-2008 @ 2:39AM
patate said...
No, I'm Brian. And my wife too :)
4-08-2008 @ 6:41PM
Willis said...
Does this update fix the idle processor buzzing my original MacBook (not C2D) makes? DAMN that sound drives me nuts...
Reply
4-08-2008 @ 6:41PM
YoJIMbo said...
My MBP would not find this in Software Update so I downloaded and tried to install manually but it said I don't need it... however according to the apple support site, my firmware version should show as something else... anyone else get this? I have a MacBookPro3,1
Reply
4-08-2008 @ 6:49PM
Tyler R. said...
It seems this update is not for all models. I have a late 2006 model Macbook and this does not show up in software update for me.
4-08-2008 @ 6:54PM
kevin said...
Apparently not for Penryn-based MBPs...
Reply
4-08-2008 @ 6:57PM
artifex said...
Does anyone know if this addresses at all the design "feature" of the MacBook Air, wherein the second core drops when it's under load? A friend of mine had this problem with one (and its replacement), and Apple finally told him it's dropped on purpose:
http://brettpeters.org/log/macbookair/
Seems misleading to sell it as having dual cores for use, if the design prevents you from actually using them both.
Reply
4-08-2008 @ 8:32PM
Josh Kagan said...
The Core 2 Duo is designed to power down one core and overclock the other when processing single threads under heavy load.
4-08-2008 @ 9:26PM
Josh Kagan said...
Wikipedia explains it better: "The Santa Rosa platform comes with dynamic acceleration technology. It allows single threaded applications to execute faster. When a single threaded application is running the CPU can turn off one of the CPU cores and overclock the active core. In this way the CPU maintains the same Thermal Profile as it would when both cores are active. Santa Rosa performs well as a mobile gaming platform due to its ability to switch between single threaded and multithreaded tasks." See http://en.wikipedia.org/wiki/Centrino#Santa_Rosa_platform_.282007.29
4-08-2008 @ 11:11PM
artifex said...
Ah, ok, thanks Josh for the explanation!
4-08-2008 @ 6:59PM
Angel said...
Not showing up in software update for me either (penryn MBP)
Reply
4-08-2008 @ 7:07PM
MiG said...
Looks like the Macbook EFI update is unnecessary on the newest model of Macbook.
Reply