BCLK overclocking?

[Matt_98]

I know there used to be a way you could overclock a non k sky-lake cpu by overclocking the bclk. is this still a thing?

[iRileyx]

I remember someone saying on here a week or so back that there was a patch so that it can't be done anymore, a few months ago if i remember correctly.

[Mira Yurizaki]

I overlcocked my board's BCLK a few months ago, so it's possible. Whether or not the motherboard manufacturer will let you do it is another thing.

[Matt_98]

Just now, M.Yurizaki said:

I overlcocked my board's BCLK a few months ago, so it's possible. Whether or not the motherboard manufacturer will let you do it is another thing.

what board have you got

[SLAYR]

9 minutes ago, Matt_98 said:

I know there used to be a way you could overclock a non k sky-lake cpu by overclocking the bclk. is this still a thing?

With the newer bioses you can't get them to 5+ Ghz anymore, but you should be able to bump it up another 100MHz or so, but not enough really to be worth it.

[Mira Yurizaki]

1 minute ago, Matt_98 said:

what board have you got

ASUS Z170i.

 

You probably won't want it because it's a mini-ITX board.

[Matt_98]

Just now, M.Yurizaki said:

ASUS Z170i.

 

You probably won't want it because it's a mini-ITX board.

I have the ATX version

[corrado33]

Base clock overclocking is much more difficult than overclocking the multiplier. The reason for this is that the base clock affects much more than just the CPU frequency. It affects memory frequency, PCI frequency, among others. This can introduce a lot of instability unless your motherboard allows you to decouple those frequencies from BCLK.

 

I have done it before, but only on a mobo that lets me decouple the frequency. 

 

Basically, you can't simply increase BCLK like you can the multiplier and expect other things to work. You often have to downclock the RAM at the very least. 

 

 

[Matt_98]

4 minutes ago, M.Yurizaki said:

ASUS Z170i.

 

You probably won't want it because it's a mini-ITX board.

Found this in AI suit, is this how you did it

[Mira Yurizaki]

I went into the UEFI settings and had the board figure out the overclock settings for me.

[SPARTAN VI]

11 minutes ago, corrado33 said:

Base clock overclocking is much more difficult than overclocking the multiplier. The reason for this is that the base clock affects much more than just the CPU frequency. It affects memory frequency, PCI frequency, among others.

 

This is not entirely the case with Skylake. BCLK and PCIe have dedicated reference clocks so you can push BCLK a bit more on Skylake processors.

[corrado33]

Just now, spartanvi said:

This is not entirely the case with Skylake. BCLK and PCIe have dedicated reference clocks so you can push BCLK a bit more on Skylake processors.

Interesting. Didn't know that. I've only tried BCLK OCing on old C2Ds. Everything else that I've OCed has been with the multiplier. 

[SPARTAN VI]

27 minutes ago, corrado33 said:

Interesting. Didn't know that. I've only tried BCLK OCing on old C2Ds. Everything else that I've OCed has been with the multiplier. 

Same I learned about this the hard way trying to push a Xeon E5450 (LGA775 mod) on a board with laughable OC'ing features. 

[lukart]

Here's a good post from other member on Linustech: