During boot up the post screen shows,'Bios update data incorrect' CPUIDE 0000068A. My system is working, but sometimes it hangs/ freeze.

If the power went off during the process of updating the BIOS on your Dell Latitude E6400, it can cause the system to become unstable and display an "invalid configuration" error. Here are a few steps you can try to resolve the issue:

1. Try to boot the computer: Turn on the computer and try to boot into the operating system. If it doesn't boot, try to boot into the BIOS by pressing the F2 key repeatedly when the Dell logo appears on the screen.
2. Check the battery: Make sure that the battery is properly connected and has a charge. If the battery is low, it may cause the system to shut off during the BIOS update.
3. Run BIOS recovery: Dell has a BIOS recovery feature that can be used to recover the BIOS in case of corruption. To run the recovery, you will need to create a BIOS recovery USB drive and boot the computer from it. Follow the instructions on the Dell website to create the recovery drive and run the recovery process.
4. Try a different power source: If you were using a battery during the update, try using the AC adapter instead. If you were using the AC adapter, try using a different one, or a different outlet to make sure that the power supply is stable.
5. Take to a repair shop: If the above steps do not work, it may be best to take the computer to a repair shop for further diagnosis.

It's important to note that running a BIOS recovery may cause you to lose all data on your computer, please make sure to backup your data before proceeding.

What was the last thing you did on your computer before this happened?
Did you change any system settings in the BIOS?
Did you add new software? or update any software or drivers?
Did you add any new hardware?
Is your system BIOS infected with a virus?
Because it appears that your PC is hanging up during the Power-On-Self-Test [POST]

Here's what happens; when the power is turned on, the computer BIOS [Basic Input/Output System] runs a POST (Power-On Self-Test). It is a diagnostic testing sequence that the computer runs to determine if the hardware [like the mouse, keyboard, hard drive, etc.] is working properly.

If the necessary hardware is detected and found to be operating properly, the computer begins to boot; If the hardware is not detected or is not operating properly, the BIOS issues an error message.

The error message may be a text on the display screen and/or a series of coded beeps, depending on the nature of the problem.

The series or pattern of beeps may vary...they may be in a number of long or short beeps or a mixture of long and short beeps, or even one long continuous beep, depending on what type of BIOS is installed.

Since POST runs before the computer's video card is activated or the integrated graphic chip on the main board, it may not be possible to progress to the display screen.

So if an error is detected during the POST it will halt the boot process because the hardware is essential for the computer's functions.

How many beeps do you hear during the initial POST?

You may have a burned out video chip/card; or corrupt drivers; or even an IRQ [Interrupt Request] conflict.

Bios updates are intrinsically dangerous and not guaranteed. If something goes wrong during the operation or it does not work you often wind up with junk. If you have a spare hard drive you might try loading that to see if it takes. If so then the issue is with the OS on your first drive. If the install does not work then it may be a bios issue and .......... Good luck!

Power off Mac and restart holding down the V key to boot into verbose mode. This will show you what is happening during the boot. Post a new question showing the specific error or point that the boot is hanging on.

It freezes because one of the programs set to start at boot crashes. To identify which immediately after booting open Task Manager and look at the processes - one should reach 99% CPU use. Once you have found it stop it from launching at boot or just uninstall it.

Did you make copy of your original bios before flashing...if yes then reflash with your original.
If No then trying reflashing again making sure no power cuts, dont touch computer until flashing is complete.
Are you using the correct bios for your MoBo?

This isnt necessarily a bios problem mate , its just windows got corrupted during the power surge. Use the link below to do a repair install. Note , repair installs do not erase your personal files or setings or software !

http://michaelstevenstech.com/XPrepairinstall.htm#RI

Hope this helps you

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Kind Regards
1234s282

Hi rogueonline,

Disconnect the external drive from the PC. (It's possible windows registry is messed up).
It sound like your windows system is a bit confused as well. First try resetting the bios. See page 9 in your manual. (Don't forget to set it back to normal). This should allow you to get back into the bios. Go over each setting & adjust as needed.
Make sure your primary hard disk drive is listed in the boot order. Advanced Setup Page 30, in manual. If your windows operating system seem is a bit off (OS not installed correctly or driver software not installed correctly). The over-all function of the system can & will run slow. If your primary drive seem to also run slow, the FAT or MBR can be slightly corrupt which will also slow the drive down including file transfer & eventually the drive will cease to function. (The drive can be repaired by doing a full format through windows).
Do a fresh install of windows, including the full format, (Not a Quick format) on the primary drive. Even though ECS does include the USB 2.0 driver so does windows update service. If your windows was all ready updated & you re-installed ECS's (2003) USB driver, that may have been enough to screw up windows. If you have data on your current drive & need to get that data off & if you have access to another system you can pull your drive & slave it into another system & remove the data. There is no quick fix. Play it safe. Start from scratch. After windows has been installed & you install the ECS driver software, update windows until there are no updates left. I'm sure your system will regain its speed.
Link to ECS web site for P4VMM2 V3.2A .
http://www.ecs.com.tw/ECSWebSite/Downloads/ProductsDetail_Download.aspx?detailid=272&DetailName=Driver&DetailDesc=P4VMM2%20%20(V3.2A)&CategoryID=1&MenuID=82&LanID=0

Good luck ogueonline!

Mike

how long does the post takes it to finish before it goes to boot? are there external device connected to your computer like a printer or external hard drive or flush drive? try updating your bios and motherboard chipset.

Try this:

Boot the system with your Windows XP installation disk. When the boot options window appears select R for recovery console. Once you have logged into the DOS session type: fixmbr and hit the enter or return key and select "y" for yes you want to do this. Type: fixboot and hit the return key again, hit "y" for yes.