Overclocking Locked Mobile Haswell

[darnok44 12]

Anyone could shed some light on this subject:Interview with 0.0: Overclocking Locked Mobile CPUs. it's not explained with details but I'm sure that we have some clever guys who can do that as well.

[z2*Pt&3j 12]

First, only chips with a model number that end in a "k" can be overclocked. IIRC this is both a design in the chip and in the chipset (not positive about the last).

Once you establish if your chip is overclockable, you can easily search for well-established OC guides and other forums.

I see what you mean when he says that his friend "unlocked" the chip - I have a sneaking suspicion all he did was mod his bios to allow overclocking on a K chip.

[darnok44 12]

He didn't overclock K chip. He did that with i7-4600M:CPU-Z VALIDATOR and with I7-4700MQ:CPU-Z VALIDATOR.

[AscheWandler 10]

ES and QS Sample CPUs can be OCed via Multiplier aswell by the way (unlocked).

The Guy in the Interview managed to unlock the Microcode update so he can "tell" the CPU what max. Ratio it has.

Works only with Hardware Mod.

[darnok44 12]

If You look on the CPU-Z stepping and familly it shows clearly retail versions of those processors. I don't think that he used ES versions. Those guys seems to confirmed this: Locked mobile Haswell unlocked and overclocked..

[octiceps 256]

If You look on the CPU-Z stepping and familly it shows clearly retail versions of those processors. I don't think that he used ES versions. Those guys seems to confirmed this: Locked mobile Haswell unlocked and overclocked..

That's the same guy as Mr. Angry, Dufus, 0.0, etc. He uses a different name on every forum

[I506dk 5]

Overclocking is possible. No hardware mods. Microcode is not known how to manipulate currently. Not anything recent. But regardless, the microcode doesn’t have anything to do with the clock speeds. That’s all controlled by intels management engine in the bios. On a locked cpu (non k) you can overclock by raising the bclk. This won’t get you much because the bclk is also tied to the pci bus and other things. I did it successfully on a Skylake cpu. Wrote a guide HERE.

[Nero243 0]

Its pretty easy if you can do some bios modding heres the guide:
 

It didnt work exactly like this with my Dell M3800 (I7 4702hq). It wouldnt post if the microcode length was diffrent so i just copied the V01 microcode in the the original V24 from my Bios and left the rest of the 24 there so the length matches. I attached some haswell microcodes so you don't have to run around with the buggy V00 (CPU internal MC) version. Everything up to V07 allows OC but i think everything after V05 only allows it to 3,6GHz

Haswell microcodes.zip