Hola Amigos!
I am in the process of getting Mac OSx Yosemite Set up on my Lenovo Z51 Laptop, and am facing an issue with the DMVT Prealloc Memory
in the UEFI BIOS.
I Followed some guides for older laptops and found that I need to set the setup variable 0x18c to 0x3, but unfortunately, this is not possible since the H2O Bios Versions available for my laptop.
My BIOS Dump : https://www.sendspace.com/file/9pg2vz (Universal BIOS Backup toolkit could not identify my bios, so i used its custom option 8192K, is it the correct way to extract?)
EDIT: HERE is the rar from the BACKUP tools, https://www.sendspace.com/file/a1yrrg
Below are the Snaps of my present bios:
![[Image: 2n1b4f5.jpg]]()
![[Image: 9tpa49.jpg]]()
![[Image: aya9lv.jpg]]()
I need help in either changing the 0x18c setup variable to 0x3, or i've read in some places, to unlock the hidden menu to be able to do
such things.
Any and all help is needed and very much appreciated!
THANK YOU!![Big Grin Big Grin]()
With hopes sky high,
thePsguy.
I am in the process of getting Mac OSx Yosemite Set up on my Lenovo Z51 Laptop, and am facing an issue with the DMVT Prealloc Memory
in the UEFI BIOS.
I Followed some guides for older laptops and found that I need to set the setup variable 0x18c to 0x3, but unfortunately, this is not possible since the H2O Bios Versions available for my laptop.
My BIOS Dump : https://www.sendspace.com/file/9pg2vz (Universal BIOS Backup toolkit could not identify my bios, so i used its custom option 8192K, is it the correct way to extract?)
EDIT: HERE is the rar from the BACKUP tools, https://www.sendspace.com/file/a1yrrg
Below are the Snaps of my present bios:
![[Image: 2n1b4f5.jpg]](http://i57.tinypic.com/2n1b4f5.jpg)
![[Image: 9tpa49.jpg]](http://i60.tinypic.com/9tpa49.jpg)
![[Image: aya9lv.jpg]](http://i60.tinypic.com/aya9lv.jpg)
I need help in either changing the 0x18c setup variable to 0x3, or i've read in some places, to unlock the hidden menu to be able to do
such things.
Any and all help is needed and very much appreciated!
THANK YOU!

With hopes sky high,
thePsguy.