CPU Core Multiplier Won't Stay PUT
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11433
Printed Date: 27 Jul 2025 at 11:28pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: CPU Core Multiplier Won't Stay PUT
Posted By: nortonowner
Subject: CPU Core Multiplier Won't Stay PUT
Date Posted: 05 May 2019 at 7:29am
| ASRock A320M-HDV is my motherboard. Running the Ryzen 7 2700x cpu. In bios i set it at manula, picked a speed and voltage, saved it, it stays in bios that way after reboot, but when i load windows and put a load on cpu, the core speed keeps slowing down, way down and voltage is not where i set it. No matter what ive tried in bios, the cpu just does its own thing. What am i missing? |
Replies:
Posted By: Xaltar
Date Posted: 05 May 2019 at 5:29pm
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Windows power saving. Fixed ratios in the UEFI will force an all core frequency, this will only come into effect when the system needs it however. Windows power saving will further lower frequencies when the system load is low. Under load without a fixed all core multiplier the CPU will vary the frequency depending on how many cores are loaded, this can provide a higher frequency when fewer cores are under load but in cases where all cores are loaded it will run at a lower frequency. Locking all cores to a multiplier tends to mean you lose frequency in lightly threaded tasks but gain significantly under heavier, more spread out load. It is much easier for the CPU to handle higher clocks on say 2 cores than it is on 8 so it is unlikely you will be able to get all cores stable at the same clocks you could achieve on just 2 or 4. Personally, I prefer leaving my system stock. AMD's XFR2 works very well and frequently boosts the CPU higher than I can manage stable with a fixed OC. If however you are performing tasks with your system where all core performance is critical then an all core OC will do wonders. In gaming however I find XFR2 tends to score me more FPS on average than a fixed OC. ------------- 
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Posted By: Xaltar
Date Posted: 05 May 2019 at 5:35pm
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I just noticed you are using an A320 board. That would be your problem. The A320 does not officially support overclocking and is a very basic, cheap implementation of the AM4 platform. To get proper overclocks from your 2700x you need at the very least a B350/B450 board. I wouldn't even run an R5 1600 on an A320 board, it's just too low end. The A320 is designed for low spec CPUs (like the Athlon 200ge and Ryzen 3). You get what you pay for and A320, IMO is a joke that shouldn't exist. AMD launched it so board partners made boards for it but for the small amount you save vs the MUCH better B350 variants it simply isn't worth it. -------------
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Posted By: nortonowner
Date Posted: 05 May 2019 at 10:27pm
| Thanks for the input. I can't believe they make a board with core configuration that doesnt work, lol. Why even put it in the bios then? Thats sad. All cores are always under load as im crunching for charity sites and it runs tasks on all cores. So i would very much like it to stop slowing down and just run at whatever speed i can keep it cool at instead of slowing down all the time when temps are just fine. Hope there is another work around, otherwise i guess ill have to upgrade the board. |
Posted By: Xaltar
Date Posted: 06 May 2019 at 3:56pm
I think you will find it works with budget CPUs like the i3 and Athlons but for a power hungry 8 core it just doesn't have the VRMs to handle the heat and power draw. By the sound of it, your OC worked but almost instantly ran into thermal throttling on the VRMs. These little boards offer great value for someone looking to build a super cheap system and even allow a little overclocking to get a bit more out of it but they don't have the power design to handle the big boys  The only reason I don't like the A320 chipset is because it's a pointless product, the B350 offers so much more for not a whole lot more money. -------------
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