Acer Aspire 5740G BIOS hacking (Switchable Graphics - not yet)

This notebook was proclaimed to have Switchable Graphics (ATI Mobility Radeon 5xxx & Intel Core i3/i5 Integrated Graphics).
Unfortunately there were probably some issues with drivers prior to release the notebook, so Acer has disabled this feature by software (BIOS) (downloads mentioned it many times).

I've been trying to enable the support Switchable Graphics, but without success yet.

Well, there were some interesting things I've discovered yet and I want to share those with other people interested in getting SG in their Aspire 5740G.
Maybe somebody could help to get this done.

(if you are interested in the full story, just continue to the second post)

So far we can:
Enable hidden "Intel" tab in BIOS Setup.
Hidden "Intel" tab can be enabled by setting the CMOS token 0x141 to value 1.
See the second post in this thread.
Chapter 4 describes the process of setting token's value.

WARNING: DO NOT SET "MCH Control Sub-Menu"→"Primary Display" TO EITHER "IGD" OR "SG" ! (unless you know how to unbrick your BIOS)

CRISIS RECOVERY DISK >>> HERE <<<

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