0.0 Beats Liquid Nitrogen Desktop CPUs with Air Cooled Mobile Haswell in 2x CPU XTU

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0.0 Beats Liquid Nitrogen Desktop CPUs with Air Cooled Mobile Haswell in 2x CPU XTU

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For those who have been following the front page and the submission discussion sub-forum this will come as no surprise, but 0.0 from Thailand has pushed the dual core Global First Place to over 600 points using his Core i7 4600M mobile Haswell processor. Even though this processor is not unlocked by default, a bug in an early microcode allows for ratio overclocking just like on the K-sku processor series.

Spread over a couple of forum topics, 0.0 explains how to “unlock” the factory-locked mobile processors exploiting a bug in an old microcode for the Haswell processors. To make a long story short, the old microcode allows for higher turbo boost bins to be used on any (mobile) processor. On power user forums (like win-raid.com) this method is explained a bit more in detail, although due to the technical nature of the matter there’s no simple guide on how to unlock your processor available. The process of “unlocking” or exploiting involves modifying your bios by inserting the old microcode and then flashing your notebook with this modified BIOS.

In the threads below you can find more information posted by 0.0 and fellow tested ice.cold

The results are pretty amazing. 0.0 pushed the frequency of the Core i7 4600M to 4.8GHz in XTU and 4.9GHz CPU-Z validation on his MSI MS-16GD notebook. Needless to say the CPU does throttle rather quickly inside the notebook casing and this is something you might not want to do to your own notebook at home.

The sweet/awesome part of the story is that this is in fact now the fastest Intel dual core configuration! Since Intel does not have an unlocked dual core with hyper-threading product on the market, the closest you can get with a desktop part is using liquid nitrogen and pushing the base clock frequency to the max. Dancop currently has the fastest desktop dual core with the Core i3 4370 clocked to a mere 4225 MHz with both processor and memory cooled by liquid nitrogen.

On the one hand, it’s hilarious to see a notebook on air beating a desktop on liquid nitrogen. On the other hand, it’s also remarkable how close a 4.2GHz desktop CPU with proper memory configuration can get to a 4.8GHz mobile CPU. It’s hard to tell which is most impressive too as both 0.0 and Dancop have put hours in getting the scores they have.

All in all I am impressed with the research and efforts of 0.0 of exploiting the microcode to push the mobile Haswell to 4.8GHz. It’s refreshing (no pun intended) to see something else than liquid nitrogen at the top. But quite frankly, I am even more curious to find out what extreme power users and overclockers are going to with this information. Can we expect people to run liquid nitrogen on notebook PCBs soon? I, for one, would be really interested to see a 5.5GHz mobile CPU take the 2xCPU XTU Global First Place to new heights!


12

Belgium Massman says:

Who is going to try to LN2 the mobile chips? :D

United States Schmuckley says:

This goes back to my theory that all chips should be unlocked like in the old days.
All that segmentation garbage..There there should be about 6 chips per Intel/AMD..period.
I bet they waste more money segmenting chips than they make :/

United States Gunslinger says:

Not really an apples to apples comparison.

Belgium Massman says:

Schmuckley said: This goes back to my theory that all chips should be unlocked like in the old days.
All that segmentation garbage..There there should be about 6 chips per Intel/AMD..period.
I bet they waste more money segmenting chips than they make :/


Most of that chip segmentation is per OEM request.

I do concur that there should be at least one unlocked SKU per product category.

- Celeron K
- Pentium K
- Core i3 K
- Core i5 K
- Core i7 K

That would allow Intel to build a product fan base from the ground up, rather than making overclocking look expensive and exclusive.

United Kingdom ObscureParadox says:

At the same time I wonder how much money they would lose if they had an i3 K for example. How many people would settle for that instead of coughing up that little bit extra for the i5?

Belgium Massman says:

That would mean their i5 is just unappealing. You know what, let's do this for a mainstream line-up ... - 1c2t Celeron K - 2c2t Pentium K - 2c4t Core i3 - 4c8t Core i5 - 6c8t Core i7 Yes, please entertain us "mainstream" enthusiasts with better than 4c8t. Really, we've been getting 8 threads on mainstream since Core i7 920 in 2009. Actually, we've had quad core CPUs on mainstream since the Q6600 price drop in 2007. That's 8 years!!!

France dx4picco says:

lol massman agreed

Australia newlife says:

Massman said: That would mean their i5 is just unappealing. You know what, let's do this for a mainstream line-up ...

- 1c2t Celeron K
- 2c2t Pentium K
- 2c4t Core i3
- 4c8t Core i5
- 6c8t Core i7

Yes, please entertain us "mainstream" enthusiasts with better than 4c8t. Really, we've been getting 8 threads on mainstream since Core i7 920 in 2009. Actually, we've had quad core CPUs on mainstream since the Q6600 price drop in 2007. That's 8 years!!!


i could live without the first two but an unlocked i3 and 6c i7 would be awesome

zeropluszero says:

i dont need no stinkin cores for 32M

United States xxbassplayerxx says:

Massman said: That would mean their i5 is just unappealing. You know what, let's do this for a mainstream line-up ...

- 1c2t Celeron K
- 2c2t Pentium K
- 2c4t Core i3
- 4c8t Core i5
- 6c8t Core i7

Yes, please entertain us "mainstream" enthusiasts with better than 4c8t. Really, we've been getting 8 threads on mainstream since Core i7 920 in 2009. Actually, we've had quad core CPUs on mainstream since the Q6600 price drop in 2007. That's 8 years!!!


Honestly, I'd probably buy more in that case. Bin Celeron K/Pentium K for cheap Pi/old 3D fun and i5/i7 for everything else.

Austria basco says:

had a good lough zeropluszero

zeropluszero says:

;)

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