BIOS, CMOS Battery Replacement Problem Started 2/6/2011
I replaced the CMOS battery on my DELL 8300 the other day. I'm running XP-Pro, SP 3. Since that time I have not been able to access the BIOS setup screen, or any screen involving the F keys. I have read many articles and posts on a number of sites and have received several suggestions. I have tried unplugging my pc, holding down the start button on the unplugged machine, hitting the Delete key--all to no avail. The F keys work on applications, however, so it is not the keyboard.
I also went to the DELL web site and upgraded from the A05 version to the A07 version for my BIOS. It said it would resolve problems with unplugged USB cables. Since I most certainly did not put the USB cables back were they were originally (I unplugged everything before the battery replacement) I tried that by downloading the A07 version and flashing the BIOS. That did not work.
I tried removing the battery, waiting 10 minutes and then replacing it, to no avail. I have tried rebooting a number of times, varying the times when I hit the F2 key. I have plugged and unplugged, etc.
Interestingly enough, with the machine totally powered down and the plug pulled, nothing happened of course. I removed the battery, waited 10 minutes, replaced the battery, closed the case, righted it and put in the power plug and the machine immediately started to reboot! I got a window that gave the BIOS version as 'BIOS Plus version 1.10 A 07'. along with some of the following information:
• Invalid configuration information. Please run SETUP program
• Diskette drive 0 seek failure
• Performing automatic IDE configuration
• Strike F1 to continue, F2 to run SETUP utility
So I pressed F1, and did not get to continue. I pressed F2 and nothing happened there either. I pressed F8 and F12 and nothing happened. I tried the DELETE and ESC keys--no help there either. The only way out of that screen was for me to hit the power off button. I then restarted the machine and got the same results. As soon as the DELL logo showed up I hit F2--still nothing.
The machine rebooted and the time was reset to 2004. Other than that, I can't detect any changes except the loss of hyper-threading. I have reset and resynchronized the time.
Finally, I tried rebooting with the DELL Diagnostic Disk. The reboot happened as it has been happening, that is, I couldn't access it with F12 (per the manual's instructions). So that was unsuccessful also.
I know that this is a lengthy post but I wanted to include all that I have tried. Thanks for everyone's help and any suggestions. but it appears that I may be at the end of the road, but it sure would be great to be able to reset my machine to hyper-threading.