Mods for Lenovo x230, tested on bios version 2.73, PhoenixTool 2.73.
These changes were taken from other sites and other Lenovo models, adapted for the x230 and tested on personal laptop.
You need to dump the bios from your notebook, from what I read you can't flash someone else bios dump, your laptop will not boot.
Use the PhoenixTool part from here
http://developers-club.com/posts/219893/
Quote:We start it, we select our bios.rom and we wait until it unpacks it, further in the field of Manufacturer we select Lenovo and we press the Advanced button, there we tick off "Allow user to modify other modules" and "No SLIC". We click "Done" and "Go", when the window will open we click nothing and we go to the DUMP folder where our Bios is unpacked.
Replace the Date Tab with the Advance Tab in Bios
File: 32442D09-1D11-4E27-8AAB-90FE6ACB0489
Replace HEX: 04320b483cc2e14abb16a73fadda475f
With HEX: 778b1d826d24964e8e103467d56ab1ba
Offset: 0x2A0 - 0x2AF
Whitelist bypass
File: 79E0EDD7-9D1D-4F41-AE1A-F896169E5216
Offset: 0xC4E-0xC4F Replace HEX: 0F84 With HEX: 90E9
Offset: 0xCA3 Replace HEX: 16 With HEX: 00
Offset: 0xCB8 Replace HEX: 74 With HEX: EB
Power Management
File: F7731B4C-58A2-4DF4-8980-5645D39ECE58
Offset: 0x4962 Replace HEX: 75 With HEX: EB Hackintosh Power management
Offset: 0x51F0 Replace HEX: 74 With HEX: EB CPU multiplier management
After you're done click the OK button on Phoenix and your bios will be repacked.