Notice for Gigabyte's Z77, H77, B75 motherboards and UEFI

Please note that if you own one of Gigabyte's LGA-1155 7-series chipset motherboards you need to upgrade the UEFI before you pretty much do anything else. Many of these boards are shipping with an early UEFI and this can cause kernel panics.
This should be the first thing you do if you're experiencing kernel panics with these boards.

If you only have OS X installed, then you need to find an unarchiver that supports 7-zip compressed files, as that's what the Gigabyte auto extracting files are archived with. Stuffit Expander will do the job among others.

Instructions on how to make a bootable USB drive if needed are available here http://macmanx86.blogspot.com/2011/07/c ... ck-on.html

To reiterate, this applies to all Gigabyte Z77, H7 and B75 motherboards, as well as the Q77 if someone for some reason owns one.

What version should the firmware be?

The latest one available for your specific motherboard.

I'm just trying to do this now (for the first time) on a Z77X-UD5H via Q-Flash, but it's telling me the file size is incorrect.

I've downloaded F8 from the website and copied it to a FAT-formatted USB stick. It downloads as an .exe file. Do I need to change it to something else?

EDIT: opened with Stuffit Expander - as you clearly wrote in the first post. So fun being a noob.

Hey, at least you figured it out, that's what counts

phybron said:

I'm just trying to do this now (for the first time) on a Z77X-UD5H via Q-Flash, but it's telling me the file size is incorrect.

I've downloaded F8 from the website and copied it to a FAT-formatted USB stick. It downloads as an .exe file. Do I need to change it to something else?

EDIT: opened with Stuffit Expander - as you clearly wrote in the first post. So fun being a noob.

Click to expand...

The exe file is a self-extract 7z file. You can unzip it using winrar or 7zip under windows system.

Thanks !!!

I just updated my GA-Z77-ds3h, my board shipped with uefi f5, and f6 was available.

I formatted my usb stick as msdos in disk utility in osx. I extracted uefi with stuffit expander as suggested and it went very smoothly.

I gave myself a moment of panic when my osx drive would not reboot... forgot to go back and change the Sata setting, because...of course the bios was back to default settings.

all is swell

Using Q-Flash means we don't have to make a bootable DOS disk, correct?

I used Q-flash, I put the file on usb key that was just formatted as msdos, not bootable. I used disk utility the same machine I updated, an already running lion hacktosh.