(UEFI) Dell XPS 15z L511z modded BIOS - and HOWTO

[TimeWalker]

What could possibly be the part that is being flashed to EC? I have disassembled the wph using Phoenix tool and looked with MMTOOL, but I'm inexperienced in this matter.
I know the offset where DTS1 is written/read, I know the offset where the fan level is written and I know the value it seeks (0x3C) to enable the fan.

Code:

OperationRegion (ECRM, EmbeddedControl, Zero, 0x0100)
                    Field (ECRM, ByteAcc, Lock, Preserve)
                    {
                        Offset (0x55),
                        OTPC,   8,
                        VGAT,   8,
                        CHPT,   8,
                        CPUT,   8,
                        SYST,   8,  // Logic board temp
                        DTS1,   8,  // CPU Package temp from DTS
                        DTS2,   8,  // PCH temp from DTS
                        SYCS,   8,
                        Offset (0x5E),
                        HWSN,   8,
                        CTYP,   8,
                        FCNT,   1,
                        FTST,   1,
                            ,   3,
                        FADJ,   1,
                        TCTL,   1,
                        FATO,   1,
                        DAC1,   8,
                        DAC2,   8,
                        FLVL,   8, // FAN0 ON/OFF
                        CTL1,   16,// ?????
                        CTL2,   16,// 0000
                        FANH,   8, // FAN0 RPM H Bank
                        FANL,   8, // FAN0 RPM L Bank
                    }

In theory it should be easy enough to alter this value and crank it up a little... of course if EC part of the rom can be altered at all.
Could possibly be inside:
DigitalThermalSensorSmm 77A6009E-116E-464D-8EF8-B35201A022DD_1_621
IT8518SioSmm 6E9947D6-43A4-446A-A63C-91139F2C1DB5_1_829