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Overclock i5 7400 non k

jjo7boy
By jjo7boy
in CPUs, Motherboards, and Memory
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I've got my i5 7400 boosting up to 3.6 GHz 

Most of the time it hovers around 3.4 GHz 

How is this possible

 

15460515690044960761656166312698.jpg

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It's not going to happen. Even with a Z170 or Z270 board, you're not going to be to squeeze more than 3% out of the BLCK, so you'll be lucky to get to 3.4Ghz all core.

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3 minutes ago, jjo7boy said:

I've got my i5 7400 boosting up to 3.6 GHz 

Most of the time it hovers around 3.4 GHz 

How is this possible

 

 

Task Manager is not always a reliable source for that info. Use CPU-Z or HWMonitor for accurate CPU clocks.

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12 minutes ago, jjo7boy said:

I've got my i5 7400 boosting up to 3.6 GHz 

Most of the time it hovers around 3.4 GHz 

How is this possible

 

15460515690044960761656166312698.jpg

Correct me if i am wrong, but I swear there was a way to overclock non K CPUs. I don't remember if it was kaby lake era or skylake? I remember you can OC on the bios, not sure what the steps were. I know it was patched now, but mobo, with a bios before the fix could OC a non K chip. I'll try to investigate.

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Just now, BLCT said:

Correct me if i am wrong, but I swear there was a way to overclock non K CPUs. I don't remember if it was kaby lake era or skylake? I remember you can OC on the bios, not sure what the steps were. I know it was patched now, but mobo, with a bios before the fix could OC a non K chip. I'll try to investigate.

Found the video. 

 

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Single core 3.6, all core 3.4. it changes. You can try BCLK tho

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18 minutes ago, jjo7boy said:

15460518619793364511961859661722.jpg

Well, it looks like you did manage to get the BCLK to 102.9Mhz, which is the 3% I mentioned above. That's why you're getting 3.4Ghz instead of the 3.3Ghz you'd get at stock.

 

The boost multiplier is still going to be between 35x for single core and 33x for all core, but a 2.9Mhz base clock difference will be an additional 100Mhz.

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I'm running a Asus z270 e gaming Mobo 

With a very old bios revision so I think thats why I can get these results

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Nah BCLK up to 102.98mhz is allowed by the Intel Management Regulation the artificial block only applies past this. Skylake that had some actually fully unlock that allowed people run the i5 6400 and i7 6700 at 4.5~4.6ghz so nothing impressive to see here as can be replicated with any locked cpu with an unlocked chipset.

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Well, back in the days, there was a H170 Hyper, that a BCLK which would actually let you overclock any non K CPU... no longer..

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