Hi,
There are some issues reported on web about flashing BIOS to UEFI. Therefore, there is a RISK !!!!
I flashed my board and have no issue but maybe I'm just lucky. Anyway, if you're still insisting then below are the steps I used:
1. Download the following from the web (google it) :
- HP USB Disk Strorage Format Tool (the one I found was HPFlash1.zip)
- Windows 98 System Files (the one I found was win98boot.zip)
- The UEFI BIOS file from Gigabyte site .Make sure you choose the correct one for your board sine they have both rev 1.0 and rev 1.3
2. Extract them all using winrar.
3. Run the hpflash1.exe to install the tool
4. Insert your thumb drive into your system (usb-2 port and the drive should be less than 4 GB - I used my old 256MB drive)
5 Open the installed HP tool program from "Start menu -> All Programs -> Hewlett-Packard Company" and run the program with the following options:
- Choose your thumb drive in Device:
- FAT32
- Create DOS startup disk
- Check "using DOS system files located at" and point it to the extracted win98boot directory
6. Click start and let it finish formatting
7. GO to the extracted BIOS file and copy FLASHEFI.EXE, Z8MAD2H3.U1B and autoexec.bat to the root directory of your thumb drive.
8. Restart your system and choose F12 to boot with your newly created bootable thumb drive.
9. The flashing should start automatically. Follow direction on the screen (shutdown the system for a few seconds..blah blah ;-) )
10. Shutdown your system, unplug the power cord. Plug the cord and start it in a few seconds
11. Go into BIOS and MAKE SURE you load the optimized default setting and savve it (F10)
12. Change your BIOS setting accordingly and hit F10 to save the changes.
I think that was all I did to flash BIOS. I then followed the guide below provided by an awesome hackintosh (thanks a ton to Memmerson) to get my system working .
GUIDE: GA-Z68MA-D2H-B3 UEFI BIOS - ALL WORKING, DSDT not required!
Good luck !!!
If I miss any steps here, can someone help providing input ..thanks to all those who make hackintosh much easier ;-)