Good evening, so I got a Toshiba P50-A-12Z to use as a work horse, mounted a 480GB SSD, 16GB of RAM, and I already knew that there is something that limits the cpu clock to 2.7Ghz when all cores are used, it is already repasted with Grizzly Kryonaut and it wount go over 70ºC under load, but its BIOS is very limited and I have some hope that I might be able to remove this clock limitation.
So, I updated the BIOS/EC to the latest version(1.9 and 1.3EC) and it is an AMI Aptio BIOS, no information about the Aptio version but it as UEFI boot, but no acess to UEFI shell from the BIOS.
If i use the lateste 5.05 AFUWIN in Windows the system hangs and must be shutdown in the power button because the keyboard/mouse dont respond anymore.

Using a pen with FreeDos(via Rufus) with AFU for Aptio 2.28, AFUDOS 5.05, AFU4.25, AFU4.28, AFU4.33 and anything else that I might be forgetting, I get either BIOS is write protected or cant get flash information.
Is there anyway to dump this BIOS?

Best regards.

EDIT by Fernando: Thread title customized

Ok, finally got it, using FTPW.ex with -D dump.rom -bios
I got a 4MB file but now the only thing that AMIBCP 4.55 shows me is this:
Any version above or under 4.55 will not open the file.
Any ideas about what to do next?

Roundup of what I have found/accomplished so far.
Using FPTW I could finally dump the BIOS, but I cant dump the ME portion..
AMIBCP will only show the window that I already posted above, and not the menu structure like it usually does, is there maybe some magic bit in the BIOS that prevents this?

Using MMTool I extracted the BIOS Setup and ran IFR Extract and got this, but its nowhere near a match to what menus are actually visible in the BIOS, the CPU is being limited to 30Watts, with undervolting that results in a measly clock of 2.7ghz on all cores, the same i7-4700 in my G750 scores 650-660 in Cinebench R15, in this laptop, in a cool room I get 530-540, in a hot room, it drops to around 490-500, my i7-2670 can score 499 all day long, this is disappointing :(
The CPU temperature wont ever go over 70ºC(already repasted with Kryonaut, added a pair of feet in the rear to lift the laptop a bit.

I have tried to just update the cpu micro-code with UBU and with MMTool, but when I try to flash it again FPTW says that the cpu doesn't have access for write in the bios eeprom/flash :/

Any ideas on how to tackle this BIOS?
--------------------------------------------------------------------------------
Offset: Title:
--------------------------------------------------------------------------------
0x3A809 Main (0x6)
0x494FF Advanced (0x1C)
0x51569 Chipset (0x1E)
0x5AEC9 Boot (0x20)
0x5B976 Security (0x3B)
0x5C8BF Save & Exit (0x4F)

But if I go into the bios I have:
Main
Security
Power Management
Advanced
Boot
Exit

Well, nobody cares about this but here it goes...
Using the IFR dump from the setup, and using setup_var I poked a dozen vars regarding lock's and limits, went into Windows, re-installed Intel XTU and all my ratio's where already preset to 36,35,34,34 and I got an extra option CPU max current, that was set to 39A, set it to 150A(just because), ran Cinebench R15, low and behold it peaks at 50.x watts on load, doesn't throttle the clocks, and stays nice and fast at 3.4Ghz, got a sweet 670 score on cinebench, on par of what is expected from this CPU.

IF anyone wants I can write what vars and values I changed to be able to remove this limitation

I know that this is a very niche topic, and it feels like the BIOS gurus are slowly getting out of the forums.
I dont like to leave my question topics without a response, when I have the time I will post all the variables and values that I used(need to go back with set_var and read then back, its not an unlock but its better than nothing.

If you have them, could you try to open my dump in all the AMIBCP versions that you might have?

And here is the recipe:

So, first, this is ONLY for the Toshiba P50-A with the 745m GPU and i7-4700HQ CPU.
Start with updating your BIOS to the latest available version, which is 1.90:
http://support1.toshiba-tro.de/tedd-file...41113153531.zip
Grab a USB pen, any size will do, and format it in FAT32, donwload BOOX64:
(To enter BIOS/Boot menu spam F12 at boot)
http://www.mediafire.com/download.php?81vegw2aw0pxcib

And place it inside two folders with the following structure:
x:\EFI\BOOT\bootx64.efi

Flash that BIOS, reboot your laptop, disable secure boot and boot via the USB pen.
This is what you should see:



setup_var will complain about a mismatch in a GUID, but ignore it, it worked for me at least, and it will happen for everytime you use setup_var, also, _ will not be in the -_ key, grub assumes an US layout, so press Shift+? to get the _ char, also remenber to press up, so you get the last used command, its faster to use it.
Now, using the command setup_var we will change a lot of variables so we can unlock the cpu current limit, some might not be trully needed, but thats how I made it.
You can also use just setup_var 0x123 to read the variable, or setup_var 0x123 0x23 to set it to 0x23, this is just an example.
I will add a comment on what each line does, DONT coppy any text after the *

Used values/vars: