I'm certainly no expert when it comes to a corrupt BIOS - but i did find this article that may help. You will of course have to find out if your motherboard BIOS is an American Megatrends (the majority if not all of mine in the past have been. Its a long shot as i dont know the motherboards that dell put in their products, but might be worth a try.
If for any reason your motherboard (mobo) BIOS corrupted, if you’re motherboards comes with a backup BIOS (Dual BIOS boards or Quard BIOS board from Gigabyte), then you still be able to boot up and log on to operating system. If you’re not, and your computer or motherboard is using an AMI BIOS, then you can use the following fail safe emergency BIOS load trick to try to recover the BIOS corruption. The hack works on the basis that AMI BIOSes have a recovery process that embedded in “boot block” which is a portion of the ROM that runs first and is not updateable. Code in boot block verify that the rest of the BIOS is intact (via checksum, hash, etc.) and if it detects that the main BIOS in “system block” is corrupt, the recovery routine is called and for AMI BIOS, it will boot to a floppy to access any new BIOS file with the name AMIBOOT.ROM. If found, the file will be read and flash or write to the system block, replacing the corrupted or bad main BIOS.
Recovery procedures for AMI BIOS
1. Download the latest version or your choose version of BIOS file for your computer or motherboard from the manufacturer’s support site.
2. Rename the downloaded file to AMIBOOT.ROM.
3. Copy the file to a floppy disk.
4. Insert the floppy disk to the floppy drive.
5. Turn on the system.
6. The system should automatically access the floppy drive (indicated LED will light up). If no floppy access occurs press and hold Ctrl-Home to force update. Follow any on screen instruction to restore and recover the good BIOS from the floppy disk.
7. When 4 beeps are heard or a reboot prompt you may remove the floppy disk.
8. Restart the computer.
Note: If USB keyboard cannot work, try PS/2 keyboard. Sometimes, take out the CMOS battery to clear the configuration settings or reset the CMOS jumper switch to clear the CMOS may help too. Only the BIOS file is needed. For AMI BIOS recovery, the floppy no need to be bootable, and no flash utility needs to exists too.
Does anyone else have any input for this thread with regards to a potentially corrupt bios?
Are you running it from a power adapter? i have just read a lot of people with the Inspiron 1525 have experienced faulty power adaptors
Edited by playsatan, 17 November 2009 - 04:05 PM.