更新 BIOS 时请勿关闭计算机或拔下电源，否则可能会损害您的计算机。在更新过程中，您的计算机将重新启动，并且可能会出现短暂黑屏。
在更新之前，请阅读下面注明的安装说明和重要信息。
Dell Optiplex 740系统BIOS
已自动安装 此文件是作为最近更新的一部分自动安装的。如果您遇到任何问题，您可以手动下载并重新安装。此页面的内容可能已自动翻译。要提供反馈，请填写页面底部的表单。
This package provides the Dell System BIOS Update and is supported on Dell OptiPlex 740 for Windows and DOS Operating Systems.
推荐
以管理员身份登录 Windows 以使用自动扫描。如果您已以管理员身份登录并看到此消息，请重新启动。 您的系统由 IT 管理员管理，并且功能可能受限。
查找更多更新。使用 SupportAssist 查找适用于您的设备的所有最新驱动程序更新。
补丁和增强功能
Fixes
- Not Applicable.
Enhancements
- Added one null character at the end of Asset Tag to indicate it is the end.
了解详情- Not Applicable.
Enhancements
- Added one null character at the end of Asset Tag to indicate it is the end.
版本
2.2.7, 2.2.7
发布日期
10 7月 2012
下载类型
系统 BIOS
类别
BIOS
重要性
推荐Dell Technologies 建议在下一个计划的更新周期期间应用此更新。更新包含用于维护整体系统运行状况的更改。它可确保系统软件保持最新状态并与其他系统模块（固件、BIOS、驱动程序和软件）兼容，并且可能包括其他新功能。
可用格式 查看重要信息
文件格式： 可针对Windows/DOS执行的CPG BIOS
文件名： O740-227.exe
文件大小： 1.78 MB
这是一个大文件。根据您的连接速度，可能需要一些时间来下载。
格式说明:
此文件格式包含BIOS可执行文件。可以使用通用格式(Windows/MS DOS)，从任何Windows或MS DOS环境安装。
为确保下载的完整性，请验证校验和值。
MD5：
5a71839dae66c784577ec50fd874c553
SHA1：
5453f6d87883bff20314831c49269ffcca0ff76d
SHA-256：
3a16490edc84dc263839e096c5120e0f80157ceeefdbb351119eb0cb4595af26
开始下载软件，即表示您接受戴尔软件许可协议 ( 英文版 ) 条款。
重要信息
-
受支持的操作系统
BIOS
适用于
OptiPlex System BIOS
安装说明
BIOS Update Executable for Windows/DOS
Download
1. Click Download File, to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.
Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment (Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select "USB Storage Device" and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. After BIOS update finished, system will auto reboot to take effect.
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Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you don't enable BitLocker on your system you can ignore it.
Download
1. Click Download File, to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.
Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment (Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select "USB Storage Device" and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. After BIOS update finished, system will auto reboot to take effect.
--------------------------------------------------------------------------------
Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you don't enable BitLocker on your system you can ignore it.