請勿在更新 BIOS 時將電腦關機或拔除電源，電腦可能因此受損。更新期間，電腦將重新啟動，並且會暫時顯示黑色畫面。
更新前，請閱讀以下所述的安裝說明與重要資訊。
Dell Latitude 5491/5591 and Precision 3530 System BIOS
需要重新啟動 已安裝 此檔案會在最近更新時自動安裝。如果您遇到任何問題，可以手動下載並重新安裝。此頁面的內容可能經過電腦自動翻譯。若要提供意見回饋，請填寫頁面底部的表單。
This package contains the Dell system BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices.
建議
請以系統管理員身分登入 Windows，以使用自動掃描。如果您已經以系統管理員身分登入並看到此訊息，請重新開機。 您的系統會由 IT 管理員管理，且功能可能會受到限制。
尋找更多更新。使用 SupportAssist 為您的裝置尋找所有最新的驅動程式更新。
修復及強化
Fixes:
- Fixed the issue where the system stops responding when you hot swap a Dell dock that is connected to an external monitor.
- Fixed the issue where an incorrect Windows operating system logon message is displayed when the Windows 10 secure sign-in feature is enabled.
Enhancements:
- Updated Thermal Algorithm to improve the performance of the system.
- Updated the embedded controller engine firmware.
- Replaces the Absolute Software service from Computrace to Absolute Persistence Module service.
- Enhanced the supportability for BIOS attribute management through Windows Management Instrumentation service.
閱讀更多- Fixed the issue where the system stops responding when you hot swap a Dell dock that is connected to an external monitor.
- Fixed the issue where an incorrect Windows operating system logon message is displayed when the Windows 10 secure sign-in feature is enabled.
Enhancements:
- Updated Thermal Algorithm to improve the performance of the system.
- Updated the embedded controller engine firmware.
- Replaces the Absolute Software service from Computrace to Absolute Persistence Module service.
- Enhanced the supportability for BIOS attribute management through Windows Management Instrumentation service.
繁體中文版
1.5.0, 1.5.0
發佈日期
06 12月 2018
下載類型
系統 BIOS
類別
BIOS
重要性
建議Dell Technologies 建議您在下一個排定的更新週期套用此更新。此更新包含的變更可維持整體的系統健全狀況。此更新可確保系統軟體保持在最新狀態並與其他系統模組 (韌體、BIOS、驅動程式及軟體) 相容，並且可能包含其他新功能。
可用的格式 檢視重要資訊
檔案格式： Windows/DOS 的 CPG BIOS 執行檔
檔案名稱： Latitude_5X91_Precision_3530_1.5.0.exe
檔案大小： 11.14 MB
此為大型檔案。視您的連線速度而定，下載可能需要一些時間。
格式說明:
此檔案格式包含 BIOS 可執行檔。此通用 (Windows/MS DOS) 格式可用於在任何 Windows 或 MS DOS 環境中進行安裝。
為了確保下載的完整性，請驗證總和檢查值。
MD5：
7ad3a658b8eda6f13fb51e1e52119b92
SHA1：
e9fc9ca5262681de64a5537ce82ffe213db0f468
SHA-256：
21918532f7c5492aefdd6c1d59c3a92d23b5b933b33f6343b576c50897f5e23f
檔案格式： 外部版本資訊
檔案名稱： Latitude_5X91_Precision_3530_1.5.0.txt
檔案大小： 4.36 KB
此為大型檔案。視您的連線速度而定，下載可能需要一些時間。
格式說明:
此檔案格式內含純文字，可使用標準文字編輯器予以檢視。
為了確保下載的完整性，請驗證總和檢查值。
MD5：
ca2b67ab026dffaecc014223cac8e860
SHA1：
55009b1b5710d7ceb6aad48612a70321b6e37c1c
SHA-256：
b9d5df9f4611c3362399130d8317e00119b10c122721c4558fda1390d9ea6c65
當您開始下載，即表示您接受 Dell 軟體授權協定 (英文版) 的條款。
重要資訊
Once the BIOS is updated, you cannot downgrade it to a version before 1.1.6.
適用於
Latitude 5491, 5591, Precision 3530
安裝指示
Updating the BIOS from Windows
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.