Unlock Advanced Options in Lenovo B450 BIOS

[NirmalRajmohan]

Please help me to unlock Advanced Bios Features in my laptop.

Model - Lenovo B450
BIOS - InsydeH2O Rev 3.5
BIOS Download - http://download.lenovo.com/UserFiles/Dri...CN26WW.exe


Thank you.

[felipejfc]

Here

https://hostr.co/d68JZt4THJOx

[NirmalRajmohan]

Here

https://hostr.co/d68JZt4THJOx

Thank you fjfc.

I flashed my BIOS with the above file, I got a new tab 'Configuration' but as soon as I move to that tab system is restarting. Everything else is working fine, but I am unable to select that tab.

By the way, I am looking to enable VT-X on the BIOS.

Hope you can fix it.

Thank you.

[felipejfc]

Here

https://hostr.co/d68JZt4THJOx

Thank you fjfc.

I flashed my BIOS with the above file, I got a new tab 'Configuration' but as soon as I move to that tab system is restarting. Everything else is working fine, but I am unable to select that tab.

By the way, I am looking to enable VT-X on the BIOS.

Hope you can fix it.

Thank you.

Ok I'll take a look, is your processor compatible with vtx?

[NirmalRajmohan]

Here

https://hostr.co/d68JZt4THJOx

Thank you fjfc.

I flashed my BIOS with the above file, I got a new tab 'Configuration' but as soon as I move to that tab system is restarting. Everything else is working fine, but I am unable to select that tab.

By the way, I am looking to enable VT-X on the BIOS.

Hope you can fix it.

Thank you.

Ok I'll take a look, is your processor compatible with vtx?

Yes, it is compatible.
Please see the CPUz Screenshot.
The new menu added is 'Advanced', but if I move to 'Configuration' laptop restarts.


screenshot tool

[felipejfc]

I'll try to manually enable vt-x for you with a mod and will edit here with the link...

EDIT

Can't be done using the original BIOS...

Can you DUMP your BIOS for me and link it? there are several tools and tutos on web on how to do this....
Also, was this tab Configurations in the BIOS already before the mod? was it working?

[BDMaster]

It is in Advanced CPU Control (sub-menu) if not appear it's hidden so unlock and will be visible !
Setting: VT Support, Variable: 0x1AF [1] default (It's enabled by default)
Option: Enabled, Value: 0x1
Option: Disabled, Value: 0x0

Into bios backup You will find this register 0x1AF and if it's = 0 then is disabled !

regards

[felipejfc]

It is in Advanced CPU Control (sub-menu) if not appear it's hidden so unlock and will be visible !
Setting: VT Support, Variable: 0x1AF [1] default (It's enabled by default)
Option: Enabled, Value: 0x1
Option: Disabled, Value: 0x0

Into bios backup You will find this register 0x1AF and if it's = 0 then is disabled !

regards

Master BDMaster, I'm waiting for him to backup it, so that I can use EFI Dumper
Many thanks

[donovan6000]

It is in Advanced CPU Control (sub-menu) if not appear it's hidden so unlock and will be visible !
Setting: VT Support, Variable: 0x1AF [1] default (It's enabled by default)
Option: Enabled, Value: 0x1
Option: Disabled, Value: 0x0

Into bios backup You will find this register 0x1AF and if it's = 0 then is disabled !

regards

Hey BDMaster. Sorry I haven't been online in a while. Nice to see this forums staying busy!

So for IFR, I use the C programming language notation to indicate the size in bytes of the variable storage, [size in bytes]. Unfortunately EFI's IFR doesn't indicate the default value like UEFI's does. So for this setting:

Code:

Setting: VT Support, Variable: 0x1AF [1]

It's variable storage is located at offset 0x1AF at it takes up 1 bytes

The notation Universal IFR Extractor uses is:

Code:

Anything in parentheses, (), is additional information
Anything in brackets, [], is the size in bytes
Anything in braces, {}, is code

And incase you didn't notice, I got version 0.5 uploaded

[felipejfc]

It is in Advanced CPU Control (sub-menu) if not appear it's hidden so unlock and will be visible !
Setting: VT Support, Variable: 0x1AF [1] default (It's enabled by default)
Option: Enabled, Value: 0x1
Option: Disabled, Value: 0x0

Into bios backup You will find this register 0x1AF and if it's = 0 then is disabled !

regards

Hey BDMaster. Sorry I haven't been online in a while. Nice to see this forums staying busy!

So for IFR, I use the C programming language notation to indicate the size in bytes of the variable storage, [size in bytes]. Unfortunately EFI's IFR doesn't indicate the default value like UEFI's does. So for this setting:

Code:

Setting: VT Support, Variable: 0x1AF [1]

It's variable storage is located at offset 0x1AF at it takes up 1 bytes

The notation Universal IFR Extractor uses is:

Code:

Anything in parentheses, (), is additional information
Anything in brackets, [], is the size in bytes
Anything in braces, {}, is code

And incase you didn't notice, I got version 0.5 uploaded

Hey donovan, this version you linked is 0.3