https://knightli.com/tags/%E8%8B%B1%E7%89%B9%E5%B0%94%E7%94%B5%E6%BA%90%E8%A7%84%E8%8C%83/ Recent content in 英特尔电源规范 on KnightLi的博客 Hugo -- gohugo.io zh-cn Thu, 26 May 2022 00:00:00 +0000 https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/ Thu, 26 May 2022 00:00:00 +0000 https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/ <h2 id="改变">改变 </h2><p>Intel全新打造的纯12V电源规范“ATX12VO”(O代表Only)，是1995年以来电源设计规范最大的一次变化. ATX12VO规范完全取消了传统的5V、3.3V，只保留12V输出电路，由它统一负责为主板、显卡、硬盘、外设等进行供电， 同时24针主供电接口改为10针，通常在CPU插座附近的4针EPS辅助供电接口则改为可选项，甚至是用于保持USB设备供电和唤醒的5VSB(Standby)输出也改成了12VSB，当然USB输出电压依然是5V。 12V向其他更低电压的转换则全部交给主板负责，比如硬盘、固态盘、光驱等所需的5V输入，都从主板获得，为此SATA接口旁边会增设一个SATA供电接口。</p> <h2 id="主供电接口main-power-connector10针定义">主供电接口(Main Power Connector)10针定义 </h2><p>线材推荐使用18 AWG,每个引脚需要支持8A的电流。10针接口总共可以提供216-288瓦的电力，每个针脚6-8安的电流。</p> <p><img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/1.png" width="1071" height="399" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/1_hu_380f2732e91ab620.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/1_hu_5f6aef52dd2bb267.png 1024w" loading="lazy" alt="主供电接口10针定义" class="gallery-image" data-flex-grow="268" data-flex-basis="644px" ></p> <p><img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/2.png" width="587" height="835" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/2_hu_b3b97a40e768ad72.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/2_hu_7261103910aebb9d.png 1024w" loading="lazy" alt="主供电接口10针尺寸图" class="gallery-image" data-flex-grow="70" data-flex-basis="168px" ></p> <p><img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/3.png" width="964" height="388" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/3_hu_be99d5975ece14ea.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/3_hu_3b2a2ece4e5545d3.png 1024w" loading="lazy" alt="主供电接口10针针脚定义" class="gallery-image" data-flex-grow="248" data-flex-basis="596px" ></p> <h2 id="附加主板接口extra-board-connector6针定义">附加主板接口(Extra Board Connector)6针定义 </h2><p>如果主板的电源需求大于10针的主电源接口的供电能力，需要使用此接口。本接口可以提供额外的216-288瓦的电力。 附加主板接口(Extra Board Connector)是为有大量PCIe插槽，大量USB，或者其他扩展槽的主板设计的。 附加主板接口(Extra Board Connector)和PCIe图形卡的接口是一致的。</p> <ul> <li>线材使用18 AWG <img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/4.png" width="973" height="254" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/4_hu_a2a39bd48d2cb675.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/4_hu_7a09dbea0abe3b49.png 1024w" loading="lazy" alt="附加主板接口(Extra Board Connector)6针定义" class="gallery-image" data-flex-grow="383" data-flex-basis="919px" ></li> </ul> <h2 id="12v-cpu供电接口定义">+12V CPU供电接口定义 </h2><ul> <li>线材使用18 AWG <img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/5.png" width="968" height="205" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/5_hu_9e45b3a207ac4683.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/5_hu_fd068066a8a8f26e.png 1024w" loading="lazy" alt="&#43;12V CPU供电接口4针定义" class="gallery-image" data-flex-grow="472" data-flex-basis="1133px" ><br> <img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/6.png" width="960" height="311" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/6_hu_11398c60021498c4.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/6_hu_660d69fea78a03e6.png 1024w" loading="lazy" alt="&#43;12V CPU供电接口8针定义" class="gallery-image" data-flex-grow="308" data-flex-basis="740px" ></li> </ul> <h2 id="pci-expresspcie显卡接口定义">PCI Express*(PCIe*)显卡接口定义 </h2><ul> <li>线材使用18 AWG <img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/7.png" width="956" height="247" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/7_hu_58218fec89400e.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/7_hu_356089acf5d21deb.png 1024w" loading="lazy" alt="PCIe*接口6针定义" class="gallery-image" data-flex-grow="387" data-flex-basis="928px" ><br> <img src="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/8.png" width="956" height="303" srcset="https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/8_hu_c10bf7490f1eb6aa.png 480w, https://knightli.com/2022/05/26/%E8%8B%B1%E7%89%B9%E5%B0%94-atx12vo-%E6%8E%A5%E5%8F%A3%E5%AE%9A%E4%B9%89/8_hu_3af59927f02661fc.png 1024w" loading="lazy" alt="PCIe*接口8针定义" class="gallery-image" data-flex-grow="315" data-flex-basis="757px" ></li> </ul> <p><a class="link" href="https://www.intel.com/content/dam/www/public/us/en/documents/guides/single-rail-power-supply-platform-atx12vo-design-guide.pdf" target="_blank" rel="noopener" >参考链接：https://www.intel.com/content/dam/www/public/us/en/documents/guides/single-rail-power-supply-platform-atx12vo-design-guide.pdf</a></p>