Chosen Solution
Hi all, I’ve just bough a second hand Dell 5420 laptop and have a weird problem which is hard to diagnose because its random. Basically when you press power button it shuts down(noise as if you pressed and held power button) without displaying anything and then restarts on its own and works just fine. I can restart it few times with no issues but all of a sudden it happens again. It has a dead battery which I’ve removed and now using genuine Dell charger but problem still exists. Its Windows 10(32bit!!) and 8GB RAM. Haven’t tried static discharge but i dont think its the issue. Has anyone experienced similar issue and could point me in the right direction? Any help is appropriated Cheers
I agree with Jayeff, Sounds very much like you need to replace the BIOS coin battery. Windows is very date and time reliant, and I have seen many ‘weird’ things happen when the BIOS date and time is wrong.
Hi @tomtom235 , Suggest that you replace the coin cell CMOS battery to fix the date and time lost issue and check what effect this has on the start/shutdown problem. These batteries are non rechargeable and usually have a life of 5 years or so. Here’s a link to the Dell 5420/e5420 service manual. Scroll to p.115 to view the necessary pre-requisite steps and then the procedure to remove/replace the coin cell battery. Alternatively here’s a link to the Dell 14R 5420 service manual if this is your model. (didn’t realize that there were two Dell laptops with 5420 in their model number). Scroll to p.59 to view the pre-requisite steps and then the procedure to remove/replace the coin cell battery. Search online for replacement batteries. The one for the 5420/e5420 seems to have wires attached so that it plugs into the motherboard. It’s a CR2032 which is a common battery but the connection type might make it difficult to find. The one for the 14R 5420 appears to be a common motherboard coin cell connection type so the battery is most probably easier to obtain. It’s type number will be stamped on it. Note the orientation of the existing battery before you remove it so that you insert the new one back in the correct way. Usually they are with the +ve symbol visible on top.
maybe you are not using the right power cord the voltige might be to low
