Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.
Before updating, please read the installation instructions and important information noted below.
Dell Latitude C640 System BIOS, A10
AUTO INSTALLEDThis file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
Latitude C640 A10 System BIOS
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Fixes & Enhancements
BIOS Release Notes
=================================================================== =================================================================== Systems: Dell Latitude C640 Series
The following updates were made to the A09 BIOS to create the A10 BIOS:
Fixes: 1. Fixed issue where Celeron processors may always run throttled under Windows XP SP1.
2. Fixed issue where the operating system may report erroneous battery information if a battery swap is performed while the system is in Standby.
The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of files. Follow the instructions to complete the installation.
To ensure the integrity of your download, please verify the checksum value.
MD5:
Not available
SHA1:
Not available
SHA-256:
Not available
File Format:One or more self extracting disk images inside of a self extracting zip
File Name:C640_A10.exe
File Size:1.02 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, then double-click it to unzip the set of files. Follow the instructions to complete the installation.
1. Click Download Now, to download the file. 2. When the File Download window appears, click Save (Windows XP users will click Save) this program to disk and click OK. The Save In: window appears. 3. From the Save In: field, click the down arrow then click to select Desktop and click Save. The file will download to your desktop. 4. If the Download Complete window appears, click Close. The file icon appears on your desktop.
Hard Drive Floppy Disk Creation
1. Get 1 blank, formatted floppy disks. 2. Double-click the new icon (it looks like a floppy diskette) on the desktop. The Self-Extractor window appears. 3. Click Setup. An black MS-DOS window appears with a message indicating that you need 1 floppy diskettes. 4. Press the [ENTER] key. A message appears prompting you to insert a blank floppy diskette. 5. Insert a floppy disk into the floppy disk drive. 6. Press the [ENTER] key. A message appears indicating that all data on the disk will be erased. 7. Press the [y] key and then press the [ENTER] key. The files are copied to the floppy diskette. If the procedure requires more than one diskette, repeat steps 5 – 7 until you reach the end of the diskette set. 8. After all the files have been copied to the last floppy disk, press the [ENTER] key and the MS-DOS window closes.
Install
1. Insert the first (or the only) disk of the set into the Floppy drive. 2. Click Start, click Shutdown, click Restart, and then click OK. Windows XP Users need only click restart. 3. Follow the on-screen instructions.
Bios_Win_exe the hard drive format
Installation Instructions
The file C640_A10.TXT is using the Hard Drive format and is designed to be directly executed from Windows environments.
Click Download now. The File Download window appears.
Click the Save button. The Save As window appears.
Select Desktop using the drop-down menu to the right of Save in.
Click the Save button. A progress meter moves as the download is completed.
If necessary, click X in the upper right-hand corner of the Download Progress Window to close it upon completion.
Double click the Icon on your desktop labeled C640_A10.TXT.
The Dell Bios Txt window appears
Hard Drive Installation (via WinZip) with Setup.exe File for R71684.exe
Download
1.Click Download Now, to download the file. 2.When the File Download window appears, click Save (Windows XP users will click Save) this program to disk and click OK. The Save In: window appears. 3.From the Save In: field, click the down arrow then click to select Desktop and click Save. The file will download to your desktop. 4.If the Download Complete window appears, click Close. The file icon appears on your desktop.
Install
1.Double-click the new icon on the desktop labeled R71684.exe. 2.The Self-Extracting window appears and prompts you to extract or unzip to C:\DELL\DRIVERS\r71684. Write down this path so the executable (I.e. Setup.exe) file can be found later. 3.The Self-Extractor window appears. 4.Click OK. 5.After completing the file extraction, if the Self-Extractor window is still open, close it. 6.Click the Start button and then click Run. 7.Type C:\DELL\DRIVERS\r71684 in the Open textbox and then click OK. 8.Follow the on-screen installation instructions.
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.