diff --git a/docs/rock5/rock5itx/getting-started/introduction.md b/docs/rock5/rock5itx/getting-started/introduction.md
index cda2caafd..e2f1970ee 100644
--- a/docs/rock5/rock5itx/getting-started/introduction.md
+++ b/docs/rock5/rock5itx/getting-started/introduction.md
@@ -81,7 +81,7 @@ ROCK 5 ITX 不仅是一款高性能的ARM基础PC板，更是一个多功能、
   </tr>
   <tr>
     <th>FAN</th>
-    <th>提供 4 个散热器安装孔，安装孔距 75 毫米，可与英特尔 LGA 151x 型散热器兼容。为带风扇的散热器提供了 ATX 标准风扇座。不支持风扇转速码表。</th>
+    <th>提供 4 个散热器安装孔，安装孔距 75 毫米，可与英特尔 LGA 115x 型散热器兼容。为带风扇的散热器提供了 ATX 标准风扇座。不支持风扇转速码表。<br/>注意：安装孔孔径为 3.5mm，并非标准 LGA 115x 的 4.03mm，这是因为本板 SoC 高度低于常规 Intel 处理器。因此散热器背板会比标准情况略微突出，若需装入机箱请注意预留空间，或选择主板托架带有开孔设计的机箱。</th>
   </tr>
   <tr>
     <th>屏接口</th>
diff --git a/i18n/en/docusaurus-plugin-content-docs/current/rock5/rock5itx/getting-started/introduction.md b/i18n/en/docusaurus-plugin-content-docs/current/rock5/rock5itx/getting-started/introduction.md
index f146181b4..eb4c19d5c 100644
--- a/i18n/en/docusaurus-plugin-content-docs/current/rock5/rock5itx/getting-started/introduction.md
+++ b/i18n/en/docusaurus-plugin-content-docs/current/rock5/rock5itx/getting-started/introduction.md
@@ -81,7 +81,7 @@ The ROCK 5 ITX is not only a high-performance ARM-based PC board but also a vers
   </tr>
   <tr>
     <th>FAN</th>
-    <th>Provides 4 heatsink mounting holes at a distance of 75mm, compatible with Intel LGA 151x type heatsinks. ATX standard fan socket is provided for fan-equipped heatsinks. Does not support fan speed code table.</th>
+    <th>Provides 4 heatsink mounting holes at a distance of 75mm, compatible with Intel LGA 115x type heatsinks. ATX standard fan socket is provided for fan-equipped heatsinks. Does not support fan speed code table.<br/>Note: The mounting holes are 3.5mm in diameter, not the standard LGA 115x 4.03mm, because the SoC sits lower than a typical Intel processor. As a result, heatsink backplates protrude slightly more than usual; please account for this when installing in a case, or choose a case whose motherboard tray has an opening.</th>
   </tr>
   <tr>
     <th>Display Interface</th>