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 Precision 5550 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 package that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices. This update addresses the Dell Security Advisories (DSA). A security advisory is a statement when a security vulnerability impacts a product, and a remedy is available for the vulnerability.
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
- This release contains security updates as disclosed in the Dell Security Advisories DSA-2024-351, DSA-2025-020, DSA-2025-044, and DSA-2025-048. For more information, see Dell Security Advisories and Notices.
閱讀更多
繁體中文版
1.34.0, 1.34.0
發佈日期
11 3月 2025
下載類型
系統 BIOS
類別
BIOS
重要性
重大Dell Technologies 強烈建議儘快套用此重要更新。此更新包含的重大錯誤修正和變更，可改善 Dell 系統功能、可靠性及穩定性。其也可能包含安全性修正和其他增強功能。
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：
Precision_5550_1.34.0.exe
檔案大小：
26.6 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：
6a2b256b702162ff6d00a0aa6914cc41
SHA1：
16afced83e9e9d1eceacf224a9528de253c90493
SHA-256：
4cb202b7a6e2077eafef00803c2a49dd0cb33c6a2e8c56bfcba364d0c94cfa43
檔案格式：
BIOS Recovery Image File
檔案名稱：
BIOS_IMG.rcv
檔案大小：
26.6 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 復原映像檔。此檔案是用於系統 BIOS 復原程序，可將系統從損毀的 BIOS 復原。
為了確保下載的完整性，請驗證總和檢查值。
MD5：
6a2b256b702162ff6d00a0aa6914cc41
SHA1：
16afced83e9e9d1eceacf224a9528de253c90493
SHA-256：
4cb202b7a6e2077eafef00803c2a49dd0cb33c6a2e8c56bfcba364d0c94cfa43
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 upgraded, you cannot downgrade the BIOS to version 1.21.0 or earlier. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- BIOS updates take no more than 5 minutes to be installed on your system. You can install the updates in the background while using the system.
- BIOS updates take no more than 5 minutes to be installed on your system. You can install the updates in the background while using the system.
支援的作業系統
BIOS
適用於
Precision 5550 System BIOS
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 BitLocker 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 power or interrupt the BIOS update process during the update.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.
Download and Installation
1. Click Download File.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file.
4. 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.
Updating the BIOS from BIOS Boot Menu (independent of operating system)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker 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.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.
Installation
1. Copy the downloaded file to a USB drive. You do not need a bootable USB drive.
2. Insert the USB drive into any USB port.
3. Power on the system.
4. At the DELL logo screen, press F12 to access the one-time boot menu.
5. Select BIOS UPDATE in the Pre-Boot Tasks.
6. Click the Flash from file to browse the USB drive to locate the downloaded file.
7. Select the file and click Submit.
8. Verify the existing system BIOS information and the BIOS update information.
9. Click Update BIOS!
10. Confirm Flash BIOS and click Confirm Update BIOS! to proceed with the update.
The system restarts and displays a Flash Progress bar at the Dell logo screen. The system restarts again when the Flash update is complete.
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker 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 power or interrupt the BIOS update process during the update.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.
Download and Installation
1. Click Download File.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file.
4. 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.
Updating the BIOS from BIOS Boot Menu (independent of operating system)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker 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.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.
Installation
1. Copy the downloaded file to a USB drive. You do not need a bootable USB drive.
2. Insert the USB drive into any USB port.
3. Power on the system.
4. At the DELL logo screen, press F12 to access the one-time boot menu.
5. Select BIOS UPDATE in the Pre-Boot Tasks.
6. Click the Flash from file to browse the USB drive to locate the downloaded file.
7. Select the file and click Submit.
8. Verify the existing system BIOS information and the BIOS update information.
9. Click Update BIOS!
10. Confirm Flash BIOS and click Confirm Update BIOS! to proceed with the update.
The system restarts and displays a Flash Progress bar at the Dell logo screen. The system restarts again when the Flash update is complete.