270Kplus 内存频率超过时5600时核显编解码占用异常

[5AM1RA]

主板：技嘉 Z890M ELITE

处理器：Ultra7 270K Plus

内存：芝奇幻锋戟 XMP 6400 C32

系统：Windows 11 24H2

前几日购买并开始使用这套平台，主板bios及驱动均已使用技嘉GCC或intel驱动程序助手更新为最新版本。今天在使用先前在14600K电脑上用核显进行obs直播的设置在我的270K电脑上直播，发现直播画面异常卡顿，发现核显占用100%，而我之前的电脑核显占用只需要40%即可完成直播任务开始排查问题出处。

不只是obs，动态桌面软件wallpaperengine也出现了这个问题，我在使用wavy grass这个1080p的视频桌面时核显占用非常高且为锯齿状周期性占用率。我附上了图片。这个问题只存在于调用Video Decode和Video Processing两种负载时。单纯调用核显的3D是正常的。

一开始以为是驱动问题，重装两次驱动后依旧，后来我在网上发现可能和内存有关，先是关闭了7200的内存超频使用内存条默认预设XMP6400，问题依旧。最后发现关闭XMP问题就消失了，然后尝试恢复bios全默认状态下仅开启XMP预设，问题再次出现，手动降低发现内存在5600或者更低时核显编解码恢复正常。

也就是说，恢复默认bios预设时，内存频率超过5600会触发这个问题。同一个动态桌面在不同频率下的正常和不正常的占用情况图已附

[Nikhil_Intel]

Hello 5AM1RA,

Thank you for posting on the Intel Community Forum.

Please be informed that I can only support you in English. I have used a web translation tool to translate this response hence, there may be some inaccurate translation.

I’m sorry for the inconvenience you’re experiencing, and I appreciate your patience while this was reviewed. I understand how disruptive the high iGPU usage, stuttering, and encoder load can be.

It appears to be a synchronization conflict between the integrated graphics engine and high-frequency memory modules. To stabilize your system, I recommend the following:

• BIOS Update: Please install the latest firmware from Gigabyte, as recent microcode updates are specifically designed to address these platform stability gaps.
• Memory Specification: For consistent encoding performance, I advise running your memory at the official Intel specification of 5600MHz. Check the specification link:

https://www.intel.com/content/www/us/en/products/sku/245692/intel-core-ultra-7-processor-270k-plus-…

If the problem persists at 5600MHz after the update, please share your Intel® System Support Utility (SSU) log (with the "Network" option unchecked) so we can investigate further. Here is the link for SSU log:

 Intel® System Support Utility for Windows*

Thank you for your time and cooperation. I look forward to your update.

Best regards,

Nikhil

Intel Customer Support Technician

[5AM1RA]

感谢回复

昨天提问时我的bios版本是技嘉最新的F20

今天在看到回复后第一时间去技嘉官方下载了最新发布的F21a版本bios，更新后核显可以在内存7200频率下正常工作了。

更高的频率我暂时没法测试，因为我的内存没法在XMP7600或者更高频率状态下稳定工作。

总之感谢如此迅速的解决问题，目前的内存频率已经可以满足我的使用了，希望后续能好的优化intel产品的使用体验。