I think what
Pedeadstrian is saying that your wireless module is integrated to your motherboard, but to me this sounds uncommon, even laptops wireless module are generally not integrated to the motherboard at all. Unless he/she actually meant Ethernet, in that case that would be very common to be integrated to the motherboard. Motherboard is a system board, it is that big circuit board that takes up a good chunk of your computer case where everything connects to it.
I had a simular issue
like this before, and was wired, I couldn't even use the internet. To solve this problem, I had to manually configure an IP, Gateway, Subnet mask, and DNS addresses, and this solved my issue. From your last post, it sounds like it is a different issue though, cause 1 bar is pretty bad, although on a different computer, a laptop, I was still able to browse the internet with 0 bars
.
You should try going to the manufacturer's (the brand of your computer) website, usually under support or download, then search for the drivers for your Ethernet/Wireless module. Don't bother updating your BIOS, because if the flashing gets clucked up or you download and flash a wrong BIOS file, that will render your computer inoperable, unless you preserve the emergency boot code, but most often times they don't, and you may have to edit out a certain command in the autoexec file, to preserve the emergency boot feature.
Almost forgot, I am also great.