Question for Z690 and H670 ITX/ax BIOS OC tweaker
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=23510
Printed Date: 22 Jul 2025 at 12:36pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Question for Z690 and H670 ITX/ax BIOS OC tweaker
Posted By: flight
Subject: Question for Z690 and H670 ITX/ax BIOS OC tweaker
Date Posted: 26 Apr 2022 at 10:20am
Hello,
I plan to build a system with Asrock ITX M/B and I want to choose one between Z690M-ITX/ax and H670-ITX/ax.
I check the online manual of Asrock website and both these 2 M/B has ??OC tweaker ??function in BIOS.
1. I found Z690 has one more function ??BCLK Frequency ??in BIOS which I did not find in H670.
Does that mean I can adjust BCLK frequency? Then CPU and DRAM clock will change depend on my setting?
If yes, what is the BCLK range? For example, 90 ~ 120 MHz?
2. There is also ??CPU P-core ratio ??function in BIOS of both Z690 and H670.
Does that mean I can change the multiplier (ratio)? For example, I can change from 20 ~ 50.
The most important thing is I plan to get Intel 12500 (non-K) version. Can I use both above function?
Or which function need to go with K version CPU?
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Replies:
Posted By: threadzipper1957
Date Posted: 02 May 2022 at 7:55pm
Intel has included an extra code that must be implemented in the BIOS.
Intel rule is that CPU overclocking is only allower, with the combination of Z series chipset, in combination with a K CPU.
If one or both are not present, CPU overclocking is disabled.
For the other questions it would be best to use the support form
https://event.asrock.com/tsd.asp" rel="nofollow - https://event.asrock.com/tsd.asp
When using a Gmail account always check the spam folder
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Kind Regards
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