Nov 10, 2025 · Reset BIOS, CMOS, or NVRAM on your Dell system with easy, step-by-step methods to fix boot issues and restore default settings

Nov 20, 2025 · To replace a CMOS battery, remove the air shroud, disconnect and remove any expansion cards, locate the battery socket, and carefully pry out the CMOS battery. After installing a …

Jul 9, 2025 · Replace the CMOS battery in your Dell desktop computer to maintain BIOS settings and system time. This guide covers the steps for removing, installing, and safely disposing of the …

Mar 7, 2015 · The CMOS battery in my Alienware X51 [Early 2012] appeared dead as the BIOS wouldn't hold the settings. I searched and was unable to find the part # anywhere so I did a general search for …

Jul 9, 2025 · For information about how to remove and then replace the CMOS (coin-cell) battery in your Dell laptop, see the documentation for your computer, and then search for CMOS battery or coin-cell …

May 9, 2024 · No video signal / general power response on Dell Optiplex 3080 Small Form Factor. Power button light was flashing once white and three times amber.  The top search results …

Jan 20, 2019 · The problem should be a CMOS battery, and yes that involves moving the jumper. If you remove the battery leave it out of the system for at least 15 minutes (Intel recommends 30).

Jul 30, 2025 · The CMOS coin cell battery used in a Dell Latitude 7470 with a 2-pin plug is commonly a 3V CR2032 battery with a two-wire, two-pin connector (often a Molex 1.25mm connector).

Apr 19, 2025 · XPS 8940, no boot, CMOS battery? My Dell PC will not boot. I have three amber lights and one white light flashing. I believe that means that the CMOS battery needs to be replaced, but I …

Jan 14, 2023 · System setup configuration and the date/time requires attention after the reset. I assumed that this would be the CMOS battery dying as the system is now several years old. I bought …