[SOLVED] my Gigabyte GA-Z87-HD3 does not recognize well the UEFI peripherals

[marietto2008]

Hello to everyone,

It seems that my motherboard (Gigabyte GA-Z87-HD3) is not able to always recognizes the peripherals formatted with the GPT / UEFI partitition table. It is able to detect them 1 time on 10 or more tries. I've also upgraded the BIOS from F7 to F8 but the problem is still there. Few hours ago I did the last try,before to make this post. First of all I've configured the BOOT parameters like these :

1) Boot Mode Selection = UEFI Only
2) Storage Boot Option = UEFI only
3) Other PC Device ROM priority = UEFI OpROM

and then I have detached everything to see what happened. Below you can see what's happened :

https://drive.google.com/open?id=1qvdRMFlsnLZO7YeJPCKwQdmsen4mGwA1

you can see there is the "Mac OS X" entry,but I don't know what is this,since I have removed everything. After this I have placed the USB stick formatted with the GPT table that I had created before with RUFUS with Windows 10 :

https://drive.google.com/open?id=1LE4BGB99BCvFxbghHCVYrKnJrNIaiMzC

and I have rebooted the PC. It has not been recognized at all,as you can see below :

https://drive.google.com/open?id=1s9ENCjHnyzFVXlpc9opA53sgMHRrCW9I

Below you can see how I have configured the BOOT settings :

https://drive.google.com/open?id=1BFnSOmKqGzPct1komj6advD6DsxpvroN

https://drive.google.com/open?id=1lvf26r4lOSMngLyS67Ot9f6TcuH4N14x

https://drive.google.com/open?id=1P5oOg0HH7rDDS8H3Vj3yOGd902yraxYg

I have also placed the original Mac OS X installation disk inside the DVD reader/burner and it has not been recognized. It seems that each UEFI peripherals is not recognized at the BIOS level. I have also installed various versions of the MAC OS X on the USB sticks but rarely they have been recognized. (I have bought a Mac Mini some time ago). I have also bought a lot of Dual layer DVD where I burnt a lot of Custom Mac OS X installation [with TransMac,also),but they are recognized only randomly and rarely. On the latest try that I did I have disabled EVERYTHING on the Mobo and it has been able to recognize a lot of time the USB stick with the GPT version of windows 10,but before to do it the MOBO made me wait some time and anyway,when I pressed F12,nothing happened. In summary it seems that the behaviour of my MOBO does not have a constant behavior. What problems could be there ? thanks.

 

[marietto2008]

I've found the solution : in my motherboard,if I want that the clover menu appears,I should press F8,not F12. And if I want that the mac OS x installation take place,I should put off the entry "limit CPU id"..