Do you mean a bad BIOS chip? Then your laptop might not turn on.
Do you mean a bad BIOS chip? Then your laptop might not turn on.
Hello everyone, here is my laptop: a Dell Latitude that is about nine years old. Two or three weeks ago, I started having trouble when trying to turn on the computer. If I press the power button, the light comes on for maybe ten seconds but then goes off with nothing else happening. There was no boot up, no fan spinning, and no back light showing up at all.
I tried taking out one of my two RAM sticks and testing it in the other spot, then switched which port I plugged into to see if that helped. Nothing worked. Finally, I took out the CMOS battery (the coin size thing) and put it back in. That fixed the problem—I successfully booted up the computer. Once everything was working normally after booting, I could turn it into sleep mode and come back online without any issues.
When I shut down completely or tried to hibernate, sometimes I got the same no-boot error, but sometimes it would actually start up as normal. Even though unplugging and replugging that CMOS battery every time fixed it when it wouldn't boot, the problem seemed to get worse over time. Recently, I had to turn off the computer because I was traveling, and now I simply cannot get it to turn on at all after trying many times. At first, I thought a dead or dying CMOS battery was the issue and bought a new one. Nothing happened.
I assumed Amazon sent me a faulty replacement battery, but I just tested both batteries with a multimeter right now, and they are both showing 3 volts as they should be. (Also note that the computer will not even turn on if the CMOS is completely unplugged.) Now I am thinking my BIOS chip might be dead—I don't see why else I would get boot problems but then suddenly work perfectly fine once I manage to start up successfully.
I also considered a bad motherboard, but it seemed less likely because I wouldn't have had normal operation after the reboot if the problem was with the board instead of the BIOS chip. Is this most probably that my BIOS chip is failing, or could there be something else? Thanks so much for your help!
Does the laptop work fine whether it gets power from the wall or just the battery? Maybe there is a risk of something going wrong in either case? At nine years old, if this laptop has been used often, it's much more likely that there is a problem with the main board, one of the smaller boards underneath it, or even the very first power source than anything else like the BIOS chip. But no matter which part is bad—whether it's the BIOS code or any other piece of hardware—it doesn't really matter because fixing each one individually would cost way more than keeping the whole thing working unless you can find an exact same laptop with a completely different problem for a price that is way too low to be worth buying. Even if this was a very cheap, modern model like a Chromebook, it probably wouldn't work as well as anything else on the market right now. I cannot say for sure, but I'm pretty sure the BIOS code in these units isn't easy to replace without special tools and a lot of repair knowledge. Knowing the specific model number along with the service tag might give you some extra details about this device, but it probably won't change how things work. The main point is that even if you figure out which part is broken, fixing it will likely mean replacing the whole main board, and that is usually not a good deal. Not when there are new or refurbished options available for maybe 150 to 200 dollars, possibly less in some cases. You might try re-flashing the BIOS with the newest version if your current one looks old or faded over time. I know it's risky because sometimes flashing breaks things, but I've seen BIOS codes become corrupted and get fixed when people managed to do that before. Still, if this thing is working now as long as you remove and put back the small battery holding the memory settings, you should probably just give up on trying to fix it alone rather than taking a chance of losing everything. If this device is important to your life, then maybe it's time to look at buying something else instead.