Mar 10, 2025 · How to clear the BIOS, CMOS, or NVRAM by reseating the CMOS battery The BIOS can be reset to factory defaults by reseating the CMOS battery that is connected to the motherboard. This process is applicable for both Dell desktops and laptops.

Oct 17, 2024 · To replace a CMOS battery, remove the air shroud, disconnect and remove any expansion cards, locate the battery socket, and carefully pry out the CMOS battery. After installing a new CMOS battery, you must reinstall the expansion cards, install the air shroud, and restore the BIOS settings, ensuring the battery is operating properly and the correct data and time are …

要更换 CMOS 电池，请卸下导流罩，断开并卸下所有扩展卡，找到电池插槽，然后小心地撬出 CMOS 电池。安装新的 CMOS 电池后，您必须重新安装扩展卡、安装导流罩并还原 BIOS 设置，确保电池正常工作，并在系统设置程序中设置正确的数据和时间。

如何通过重新拔插 CMOS 电池来清除 BIOS、CMOS 或 NVRAM 通过重新拔插已连接到系统主板的 CMOS 电池，可以将 BIOS 重置为出厂默认值。 此过程适用于戴尔台式机和笔记本电脑。

Nov 21, 2020 · To avoid damage to the battery connector, firmly support the connector while removing the battery. For information about how to remove and then replace the CMOS (coin-cell) battery in your Dell laptop, see the documentation for your computer, and then search for CMOS battery or coin-cell battery, and follow the instructions.

Feb 20, 2025 · Replace the CMOS battery in your Dell desktop computer to maintain BIOS settings and system time. This guide covers the steps for removing, installing, and safely disposing of the motherboard battery, ensuring your BIOS functions properly.

CMOS（互补金属氧化物半导体）电池（也称为主板上的纽扣电池）可帮助 BIOS 或 UEFI 存储硬件配置设置。它有助于记录计算机关闭的日期和时间。CMOS 电池位于计算机内部并连接至系统主板（主板）。 CMOS 电池的续航时间因计算机的使用情况和环境而异（通常为 2-3 年）。CMOS 电池故障的常见症状如下 ...

Dell 데스크탑에서 잊어버린 BIOS 비밀번호를 복구하는 방법 BIOS 비밀번호는 복구할 수 없습니다. BIOS에서 설정한 비밀번호 중 하나를 잊은 경우 CMOS 또는 NVRAM을 재설정하면 BIOS를 출고 시 기본 설정으로 리셋하고 BIOS에서 비밀번호를 제거할 수 있습니다.

否则，系统主板可能因撬出插槽或破坏系统主板上的电路而损坏。 为避免损坏电池接头，取出电池时应稳固地支撑接头。 有关如何卸下然后更换戴尔笔记本电脑中的 CMOS（纽扣）电池的信息，请参阅计算机文档，然后搜索 CMOS 电池或纽扣电池，并按照说明进行 ...

Dell製ノートパソコンのCMOS (コイン型セル)バッテリーを取り外して交換する方法については、お使いのコンピューターのマニュアルを参照し、CMOSバッテリーまたはコイン型電池を検索して、手順に従ってください。