https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/an-ying-jing-ling5-air-USB3-0-he-lei-dian-kou-su-du-cai40M/m-p/1123693#M440204 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2021-10-27 191407.png" style="width: 552px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/65081i2A1A2F9F07E42BB6/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2021-10-27 191407.png" alt="屏幕截图 2021-10-27 191407.png" /></span></P><P>突然USB3.0和雷电口速度降到40M左右 原来都有320M每秒的速度</P> Wed, 27 Oct 2021 11:18:41 GMT 灯塔下的人 2021-10-27T11:18:41Z https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/an-ying-jing-ling5-air-USB3-0-he-lei-dian-kou-su-du-cai40M/m-p/1123693#M440204 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2021-10-27 191407.png" style="width: 552px;"><img src="https://h30471.www3.hp.com/t5/image/serverpage/image-id/65081i2A1A2F9F07E42BB6/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2021-10-27 191407.png" alt="屏幕截图 2021-10-27 191407.png" /></span></P><P>突然USB3.0和雷电口速度降到40M左右 原来都有320M每秒的速度</P> Wed, 27 Oct 2021 11:18:41 GMT https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/an-ying-jing-ling5-air-USB3-0-he-lei-dian-kou-su-du-cai40M/m-p/1123693#M440204 灯塔下的人 2021-10-27T11:18:41Z https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/an-ying-jing-ling5-air-USB3-0-he-lei-dian-kou-su-du-cai40M/m-p/1123747#M440211 <P>您好，建议回忆一下最近做了什么操作没有。</P> <P>1、建议做一下静电释放：关机后，同时按住Win键和字母V键不松手，再按住电源开关2秒，屏幕亮起后，先松开电源键，看到屏幕出现CMOS 重置（502）提示后松开所有按键，然后按一下回车即可进入系统。</P> <P>2、查看bios版本，建议更新到最新（更新前，备份数据，不要断电）</P> <P>3、更新芯片组驱动程序。</P> <P>4、取消设备管理器中，intel usb3.0设备的节能模式。</P> Wed, 27 Oct 2021 14:17:26 GMT https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/an-ying-jing-ling5-air-USB3-0-he-lei-dian-kou-su-du-cai40M/m-p/1123747#M440211 Danny-wu 2021-10-27T14:17:26Z