Wednesday, 25 March 2015

Replace The Cmos Battery On A Gateway M675

Learn to replace the CMOS battery in your Gateway M675 laptop.

Your computer's CMOS (complementary metal-oxide semiconductor) is a small, battery-powered chip built into your motherboard. The CMOS chip mainly stores your laptop's date and time settings. If the battery on your computer's CMOS dies, your time and date settings will reset to your motherboard's default settings each time you power down your computer. Replacing the CMOS battery in your Gateway M675 laptop means that you have to strip down your laptop to the motherboard. While this is not difficult, it is time-consuming and can be potentially hazardous.


1. Turn off your laptop, disconnect the power cable, and close the LCD screen until it is securely shut. Flip the laptop over, rotate the laptop so the front is facing forward, and then remove the battery pack from the bottom casing of the laptop.

2. Flip the laptop over, open the LCD screen, and then insert a small, flat-head screwdriver into the right side of the keyboard bezel. The keyboard bezel is the thin plastic strip located between the LCD screen and the keyboard that spans the width of the laptop. Work your way to the left side of the laptop, or until the bezel is completely removed from the laptop. Set it aside.

3. Remove the five Phillips-head screws from behind the top row of keys on the laptop's keyboard. Grasp the top edge of the keyboard, and then place it face down over the laptop's palm rest. Disconnect the keyboard's ribbon cable from the motherboard. Lift the keyboard off of the laptop and set it aside.

4. Locate the LCD video cable extending from the LCD panel. Follow the cable to its connector on the motherboard. Disconnect the cable from the motherboard. Grasp the LCD panel with one hand, and then with the other hand remove the two Phillips-head screws from each LCD hinge. Lift the panel off of the laptop's base and set it aside.

5. Remove the Phillips-head screws from the top casing of the laptop. Insert a guitar pick into the crease separating the top casing from the bottom casing. Begin to pry up the top casing. Work your way around the entire perimeter of the laptop until the upper casing is detached, but don't remove it completely.

6. Lift up on the upper casing until the motherboard is visible. Locate the CMOS battery on the motherboard. It resembles a large watch battery, and is located near the CPU in the upper-left corner of the motherboard. Remove the CMOS battery from its compartment and place the new CMOS battery in its place. Make sure the battery is fully seated inside the battery compartment, or the CMOS will not work.

7. Follow Steps 1 through 5 in reverse to reassemble the laptop.

Tags: CMOS battery, battery your, Gateway M675, Phillips-head screws, Phillips-head screws from, screws from