--- title: This mistake during a PC upgrade can fry your... description: Mixing PSU cables between different power supply units is a dangerous mistake that can fry expensive components like GPUs, CPUs, and motherboards. Even though... canonical: https://daily.dev/posts/this-mistake-during-a-pc-upgrade-can-fry-your-components-and-it-s-surprisingly-easy-to-make-spzxejnjg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: This mistake during a PC upgrade can fry your components, and it's surprisingly easy to make | daily.dev og:description: Mixing PSU cables between different power supply units is a dangerous mistake that can fry expensive components like GPUs, CPUs, and motherboards. Even though... og:url: https://daily.dev/posts/this-mistake-during-a-pc-upgrade-can-fry-your-components-and-it-s-surprisingly-easy-to-make-spzxejnjg og:image: https://api.daily.dev/og/posts/SpZxEJnjg.png og:image:alt: This mistake during a PC upgrade can fry your components, and it's surprisingly easy to make 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. # This mistake during a PC upgrade can fry your components, and it's surprisingly easy to make **[XDA Developers](https://daily.dev/sources/xda-developers)** · 4 min read · 0 upvotes · 0 comments ## Summary Mixing PSU cables between different power supply units is a dangerous mistake that can fry expensive components like GPUs, CPUs, and motherboards. Even though cables from different PSUs may look identical, their pinouts can differ, causing incorrect voltages to be delivered to components. The rise of modular PSUs has made this mistake easier to commit since cables are no longer permanently attached. The safest practice is to always use the cables bundled with a new PSU and discard old ones. Intel's ATX12VO standard aims to address cable standardization but has seen little adoption. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Your PSU still follows a color-coding standard that’s decades older than your PC, but there's a reason why](https://daily.dev/posts/your-psu-still-follows-a-color-coding-standard-that-s-decades-older-than-your-pc-but-there-s-a-reas-ko5jn6e4c) · XDA Developers · 0 upvotes · 0 comments - [The 24-pin ATX connector is finally getting replaced, but what comes next looks nothing like modern PC boards](https://daily.dev/posts/the-24-pin-atx-connector-is-finally-getting-replaced-but-what-comes-next-looks-nothing-like-modern--ug52nu5qu) · XDA Developers · 0 upvotes · 0 comments - [GPU power cables are still melting RTX 5090s, and Nvidia had the solution years ago](https://daily.dev/posts/gpu-power-cables-are-still-melting-rtx-5090s-and-nvidia-had-the-solution-years-ago-vt5kmnmdg) · XDA Developers · 0 upvotes · 0 comments - [Fixing An E-Waste ASUS P5A-B Socket 7 Mainboard](https://daily.dev/posts/fixing-an-e-waste-asus-p5a-b-socket-7-mainboard-fcpnl53w7) · Hackaday · 0 upvotes · 0 comments --- Tags: [#hardware](https://daily.dev/tags/hardware) [View this post on daily.dev](https://daily.dev/posts/this-mistake-during-a-pc-upgrade-can-fry-your-components-and-it-s-surprisingly-easy-to-make-spzxejnjg) ```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":"This mistake during a PC upgrade can fry your components, and it's surprisingly easy to make","url":"https://daily.dev/posts/this-mistake-during-a-pc-upgrade-can-fry-your-components-and-it-s-surprisingly-easy-to-make-spzxejnjg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/this-mistake-during-a-pc-upgrade-can-fry-your-components-and-it-s-surprisingly-easy-to-make-spzxejnjg"},"datePublished":"2026-07-13T16:03:09.117Z","dateModified":"2026-07-13T16:07:44.411Z","description":"Mixing PSU cables between different power supply units is a dangerous mistake that can fry expensive components like GPUs, CPUs, and motherboards. 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