Dell Precision 390 doesn't start with Bios pin in Place

I recently acquired my nieces computer Dell Precision 390 and was trying to upgrade to Windows 7. When I opened upward, I noticed that the pin of the Bios was only placed on one of the pins instead of two of them as shown in the maintenance manual.

After the replacement of the Bios pin on the appropriate setting, the computer will not start and has no effect when you press the Start button.

I replaced the pin of the Bios to the place where I found it originally, and the end started computer. What gives here? Why didn't he start if I place the PIN Bios exactly where it is supposed to be?

Does anyone have answers or suggestions? Thank you!

His work EXACTLY as designed.

Clear CMOS/NVRAM memory; 390

By rider:

The computer must be disconnected from the power outlet to clear the CMOS setting.

Remove the cover from the computer.
Locate the RTCRST jumper on the system board.
Remove the CAP from the single-axis and onto the two pins and wait 3-5 seconds.
Replace the cap on the single PIN.
Replace the computer cover.
Plug the computer and peripherals to their electrical outlets and turn them on.

Tags: Dell Desktop

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