Sony Vaio Z2 (2011) Advanced Menu BIOS Hack

[pyr0]

Also, overclocking lib is there - but tweaking of the turbo options is going to require poking VSS registers directly.

No big deal at all since we got full control over the entire BIOS including VSS registers.

[psyq321]

JFYI - do not attempt to increase the aperture size of the internal GPU to 512 MB - it will result in an unbootable system (at least with my Z).

[beaups]

^Were you able to recover or reset CMOS or?

[psyq321]

Fortunately, it allows you to enter the EFI after ~30 seconds of pooling something - which was a big relief, as I was already seeing my Z2 on its way to the repair center.

eGPU works all the time - you can even see 'Operating system not found' message if you connect the PMD, so I suppose it is just one of the unused and untested EFI options that breaks something else, and nobody @Sony bothered to check that.

My bet is on some memory mapping that is fixed, and gets trashed by the enlarged eGPU memory window.

[lamoon2012]

Dose This Work On Vaio, Bios R019020 ?

[fbcyborg]

Hi! I've seen this video:

Here's a video: Vaio Z2 Bios Hack Advanced Menu - YouTube

So, this means Vt-d is not enabled by default and the only way to get it enabled is to hack the BIOS?

Interesting, it is possible to enable VT-d, same as in old Z notebooks... I wonder why they keep it disabled.

If you think that Sony released an old laptop (SZ330P) without the possibility to enable even the Vt-x, even if it was supported by the CPU, we can consider ourselves very lucky that at least such possibility is given!

[pyr0]

So, this means Vt-d is not enabled by default and the only way to get it enabled is to hack the BIOS?

No, you can also hack only this single setting.

[fbcyborg]

No, you can also hack only this single setting.

Thanks for the information. I bet that this is explained somewhere, but I've missed it. A procedure similar to the one described in the first post would be necessary?

[fbcyborg]

Hmm?
Malware found in "Universal Bios Backup Toolkit 2.0.exe"
Virus or malware "TR/Agent.ukb" found.

anyone else got this warning?

Yes! me too!

[pyr0]

Yes! me too!

There is no malware inside. Nevermind, I dropped the Backup tool in my manual and created a batchfile that uses the original Insydeflasher tool. This is 100% safe. See the instructions.