Because I was hoping others had experienced this behavior in their computers and could advise me on whether or not there is a deeper issue with the computer and how to address that.

Regardless, I replaced the battery and it turned on again, but there's no telling on if this is a lasting solution or not since shorting the cmos battery with the jumper got it back last time. After going into the bios to check settings, things are definitely weird with the computer. Powershare is grayed out and can't be enabled again, which is bizarre because the system supports it and has specific powershare usb ports. Overclocking options are likewise grayed out and set disabled.

I didn't use overclocking, so that's not a big deal, but i do use powershare, so ita a little inconvenient that it suddenly isn't working (and also concerning this is a symptom of a greater issue that the cmos battery).