--- title: Your AM5 boot time is slower than it should be, and it's... description: DDR5 RAM's complex architecture — including dual sub-channels, on-die power management, and higher speeds — requires significantly longer memory training on... canonical: https://daily.dev/posts/your-am5-boot-time-is-slower-than-it-should-be-and-it-s-probably-not-your-cpu-ivp5nmwql twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Your AM5 boot time is slower than it should be, and it's probably not your CPU | daily.dev og:description: DDR5 RAM's complex architecture — including dual sub-channels, on-die power management, and higher speeds — requires significantly longer memory training on... og:url: https://daily.dev/posts/your-am5-boot-time-is-slower-than-it-should-be-and-it-s-probably-not-your-cpu-ivp5nmwql og:image: https://api.daily.dev/og/posts/Ivp5nmWqL.png og:image:alt: Your AM5 boot time is slower than it should be, and it's probably not your CPU og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Your AM5 boot time is slower than it should be, and it's probably not your CPU **[XDA Developers](https://daily.dev/sources/xda-developers)** · 4 min read · 0 upvotes · 0 comments ## Summary DDR5 RAM's complex architecture — including dual sub-channels, on-die power management, and higher speeds — requires significantly longer memory training on every boot compared to DDR4, making AM5 systems noticeably slower to start. The Memory Context Restore (MCR) BIOS setting can cut boot times by up to a minute by reusing previously validated memory parameters instead of retraining from scratch. However, MCR only works when waking from standby (not cold boots), and can cause instability on high-speed DDR5 kits. Combining MCR with the 'Power Down Enable' setting and Fast Boot can help balance speed and stability. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [This one BIOS setting makes your PC boot twice as fast, and motherboards still ship with it turned off](https://daily.dev/posts/this-one-bios-setting-makes-your-pc-boot-twice-as-fast-and-motherboards-still-ship-with-it-turned-o-ww0qnbunx) · XDA Developers · 0 upvotes · 0 comments - [I disabled the AM5 BIOS setting everyone uses, and my random crashes finally stopped](https://daily.dev/posts/i-disabled-the-am5-bios-setting-everyone-uses-and-my-random-crashes-finally-stopped-7ovc6xsvr) · XDA Developers · 0 upvotes · 0 comments - [Your BIOS is playing it safe with 3 settings that should've been enabled years ago](https://daily.dev/posts/your-bios-is-playing-it-safe-with-3-settings-that-should-ve-been-enabled-years-ago-v3quubdhy) · XDA Developers · 0 upvotes · 0 comments - [Your AM5 board has a hidden BIOS setting for even better DDR5 performance, and no, it's not EXPO](https://daily.dev/posts/your-am5-board-has-a-hidden-bios-setting-for-even-better-ddr5-performance-and-no-it-s-not-expo-sgwyhxj9u) · XDA Developers · 0 upvotes · 0 comments - [The first thing I check in every new PC's BIOS is a setting most people leave switched off by accident](https://daily.dev/posts/the-first-thing-i-check-in-every-new-pc-s-bios-is-a-setting-most-people-leave-switched-off-by-accide-b0kkgtcsr) · XDA Developers · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/your-am5-boot-time-is-slower-than-it-should-be-and-it-s-probably-not-your-cpu-ivp5nmwql) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Your AM5 boot time is slower than it should be, and it's probably not your CPU","url":"https://daily.dev/posts/your-am5-boot-time-is-slower-than-it-should-be-and-it-s-probably-not-your-cpu-ivp5nmwql","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/your-am5-boot-time-is-slower-than-it-should-be-and-it-s-probably-not-your-cpu-ivp5nmwql"},"datePublished":"2026-07-16T21:35:05.552Z","dateModified":"2026-07-16T21:35:41.960Z","description":"DDR5 RAM's complex architecture — including dual sub-channels, on-die power management, and higher speeds — requires significantly longer memory training on...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d49f47002fe87e1e0349fccb502599ee?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d49f47002fe87e1e0349fccb502599ee?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"XDA Developers","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"XDA Developers","logo":"https://media.daily.dev/image/upload/s--kCg6yyAP--/f_auto,q_auto/v1774964407/logos/xda-developers?_a=BAMAMiWQ0","url":"https://daily.dev/sources/xda-developers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/your-am5-boot-time-is-slower-than-it-should-be-and-it-s-probably-not-your-cpu-ivp5nmwql","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"XDA Developers","item":"https://daily.dev/sources/xda-developers"},{"@type":"ListItem","position":3,"name":"Your AM5 boot time is slower than it should be, and it's probably not your CPU"}]} ```