Need Bootable CD BIOS For Inspiron 600m

First,

Is there a (A17) "latest version" BIOS file that can be bootable from CD to install on the laptop?

I have a 600m Inspiron laptop that keep shutting down after 1-2 mins of running. I tried replacing the fan near the CPU inside the laptop but that didn't fix it.

The version is A15 BIOS.

Someone have a Bootable CD? Dell not helping if they have a .EXE file. What point to install a .EXE BIOS when the laptop keep shutting off in 1-2 mins.

Either the motherboard hardware having problem or this could be a bad glitch in the BIOS that shutting off the laptop.

Secondly, is there a manually way for me to turn off the automatic emergency power shutdown?

This could be my other possible solution but I don't know.

The laptop isn't running on battery. The laptop failed to re-charge the battery even if the adapter is replace. (possible problem in the motherboard)

Note: I couldn't figure out extracting the BIOS from the .EXE. WinRAR failed to open the BIOS .exe file.

I am willing to format the BIOS and start over at the beginning of the version just for the sakes of wiping out the possible glitch that is altering the CMOS or power that turn it off mysteriously.