Power on your computer over the internet with WoL, or use your keyboard Enable Wake-on-LAN, then use an app like TeamViewer to trigger the startup over the internet. Another method is to turn a key ...

My mother has a Dell Optiplex GX 260. I removed the old cmos battery and replaced it with a new one. I closed up the computer, plugged everything back in and the computer wont' turn back on. I've ...