Just tried, made no difference. All that happens is that once the dell loading scrren has finished the bios screen does not load up, only a period line that flashes is on the screen. I have to retry and let the BIOS reinstall.
some dells have a switch to indicate the case has been opened. Take out the cmos battery then operate the jumper to clear the bios. Put the battery back in and close up the case. When you start the pc as soon as you see the dell logo hit the F2 button and go through the bios to clear the case intrusion setting
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