Z790 PG Riptide XMP issue
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=113373
Printed Date: 02 Nov 2025 at 5:57pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z790 PG Riptide XMP issue
Posted By: Ropeic
Subject: Z790 PG Riptide XMP issue
Date Posted: 01 Nov 2025 at 8:44pm
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Hi! I have problem with ASRock Z790 PG Riptide and memory Kingston Fury KF560C30-32 6000Mhz 32x2 Gb. I have two XMP: 1 and 2. XMP 2 is on 5600Mhz and that work, but XMP 1 is on 6000Mhz not working. Windows is unstable, reset, blue screen... Windows is 11 Pro. Please help me? Thanks. |
Replies:
Posted By: Xaltar
Date Posted: 01 Nov 2025 at 11:43pm
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XMP and EXPO lead to a lot of confusion. Both are technically an overclock, simply an overclock that the RAM manufacturer has tested and validated on a handful of systems. The problem is that this doesn't guarantee that the RAM will be capable of these speeds on every configuration. I can't count the number of threads here on the forums where people have come looking for help for this exact reason. Part of the issue is that BIOS settings and updates can sometimes get things to run at the RAM's rated XMP settings which leads people to think that it's always the motherboard that is at fault. In reality, RAM compatibility and frequency support is far more complicated than that. Frequency support begins with the CPU and the memory controller built into it. Then there is the architecture of the motherboard's RAM slots and configuration and only then the BIOS and settings. When the memory controller used to be located on the motherboard as a separate, discrete system RAM compatibility and frequency was much simpler. Issue number two is that most people don't realize how little RAM frequency actually effects the average user in most cases. The difference between 5600 and 6000 for example is so small you wouldn't even notice it in some benchmarks. The problem is that most of us feel that if we paid for a certain speed rating we expect to be able to achieve it. In reality, it is far less significant and impacting than the marketing would lead you to believe. Sure, some tasks and use cases will benefit, including games but with games it only really matters to people chasing FPS to brag about in a benchmarking capacity. Now, I say all this to potentially save you a ton of messing around and headaches trying to get things to run at their rated speed only to be disappointed that it didn't really make any difference you can notice. If it is still important to you and/or you are one of the few that actually needs the extra RAM throughput for your use case then you are going to need to take a deep dive into BIOS settings, RAM timings/sub timings and tutorials online. Unfortunately I don't have a DDR5 based system so have not really played with overclocking it. Google should have all you need to adjust timings and voltages etc to get more out of your RAM. Personally, I don't recommend it, stability and reliability mean a lot more than 1 - 5 FPS in a game that is already running at 60fps+. It won't net you any gains at all if the GPU is the bottleneck either. Chasing RAM frequency is a game for overclockers looking to set records or eek every last FPS out of their flagship tier parts. I hope this is in some way helpful. ------------- 
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Posted By: Ropeic
Date Posted: 02 Nov 2025 at 12:27am
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Thank you very much. I hope that someone help me about latency because on 5600Mhz is 40-40-40-80. On 6000Mhz is 30-36-36-80. Thanks in advance |