Z170 Pro4 UEFI questions

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   Ah, using Sky-OC (BCLK overclocking with 3.0) will disable the iGPU so you will need to hold off on OCing till you get a dedicated GPU. Once you do you can set the BCLK to frequencies over 104/5 without losing stability.

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Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 25043	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Topic: Z170 Pro4 UEFI questions Posted: 11 Jan 2016 at 2:32am
	Ah, using Sky-OC (BCLK overclocking with 3.0) will disable the iGPU so you will need to hold off on OCing till you get a dedicated GPU. Once you do you can set the BCLK to frequencies over 104/5 without losing stability.

peroni Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Dec 2015 Status: Offline Points: 65	Post Options Post Reply Quote peroni Report Post Thanks(0) Quote Reply Posted: 11 Jan 2016 at 2:23am
	Thanks Xaltar, I have tried 3.0 but was unimpressed, I get much better stability with 2.8 However consider that I use the built-in GPU (waiting for a new GPU). I do not understand why when setting BCLK to anything above 100 in UEFI the CPU multi gets reduced to 32 with no option for me to change it. The only workaround is to set both Multi and BCLK in windows using A-Tune. Seems like somebody forgot to add something, maybe will be fixed in the next bios version.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 25043	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 11 Jan 2016 at 1:24am
	You will want 3.0 as it will allow BCLK overclocking. Other settings may have been present in an older BIOS revision but they likely did not actually work. I had a BCLK option on my H170 board in an earlier BIOS version and it did nothing at all to the BCLK no matter what I set it to, the current BIOS version for my board no longer has the setting as it was non functional. This is probably the case with your board too. Also some settings will not be available when another setting is disabled. All you need for a non K CPU however is BIOS version 3.0, the BCLK setting and CPU voltage settings.

peroni Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Dec 2015 Status: Offline Points: 65	Post Options Post Reply Quote peroni Report Post Thanks(0) Quote Reply Posted: 11 Jan 2016 at 12:57am
	Hello all, I am a recent owner of a Z170 Pro4 board paired with a i5 6600 (non k). The options available under OC Tweaker- CPU Configuration seem to be substantially less than what is shown on the manual and also to what was present with the original bios version. I am running bios version 2.80 but tried 3.00 and all the previous ones without a change. The only options I have listed are: BCLK Frequency BCLK Spread spectrum Intel SpeedStep Technology Intel Turbo Boost Technology Long Duration Power Limit Long Duration Maintained Short Duration Power Limit I know that running a non-k CPU limits some of the entries but I am fairly certain the original bios had more Can anybody confirm what's available in their menu?