How to locate and reset Acer 5920G CMOS Battery – without dismantling the whole laptop
The other day I had to reset the CMOS battery on my Acer 5920G laptop. I found a nice little short cut in getting the job done quickly and efficiently. After reading a couple of tutorials online most of the people said that I would literally have to completely dismantle the laptop (apart from the monitor of course), which seemed a little long-winded, seeing as that I was able to spot the CMOS battery just by removing the back cover.
The problem lies in its location. It is extremely difficult to get your fingers in where its connect to the circuit board without dismantling the case and circuit board (”No disassemble number 5” – Johnny 5). This guide will show you how to reset the CMOS battery by only removing the back cover of the laptop.
All you will need is a screwdriver and a pair of tweezers.
Step 1 – Disconnect the AC power from your laptop and remove the battery.
Step 2 – Using your screwdriver, unscrew the 9 screws (n.b 2 are hidden under two sticky black circular covers). Once the screws are removed, slide off the back cover and position your laptop as shown below, this will help you locate the CMOS battery a lot easier. Please note I was upgrading both my RAM and hard drive, that’s why they are not seen in the image below – you do not have to remove these for resetting the CMOS battery.
Step 3 – Tilt your laptop slightly upwards and look down inside where the circular volume slider is, you should see a twisted red and black cable which is plugged into a small square connector on the circuit board, this is the CMOS battery.
Step 4 – Once you have located the CMOS battery, take your set of tweezers and carefully position them over the tip of the CMOS battery connector. Then pull it up to disconnect it (mine is disconnected in the photo – but I didn’t pull it right out, this making it easier to reconnect), leave it disconnected for 3-4 minutes, then reconnect.
Step 5 – Now that the CMOS has been reset, put the back cover back on the laptop and secure it with the screws you removed earlier. Put your battery back in and boot up your Acer 5920G and bingo, job done without having to take it all to pieces.
This method saves a lot of time and also saves you from dismantling the whole system to reset the CMOS battery.