Finally got around to buying a new CMOS battery today. Four of them, actually. Got a 4-pack for about $8 at Walmart, which should last roughly 40 years, assuming the other three batteries don't lose charge while just sitting in the pack, and they all last as long as the original battery did when in use. The only issue with replacing it was that I had to remove the video card to get at the battery, because some big-brain decided it would be a good idea to put the CMOS battery slot right next to the PCIe port for some reason.
In any case, glad it's done, because I actually didn't want my computer booting through the default Quick EZ boot or whatever the hell it's called, because A) that skips the pre-boot memory checks and such, which I didn't want it skipping, and B) it takes about as long for the router and modem to power up and get fully connected as it does for computer to go through the normal, non-"Quick EZ whatever" boot, and there's not much point for the computer to blitz through and be ready to go if the Internet isn't there yet.
Anyway, yeah, that's another problem solved, fairly simply.
In any case, glad it's done, because I actually didn't want my computer booting through the default Quick EZ boot or whatever the hell it's called, because A) that skips the pre-boot memory checks and such, which I didn't want it skipping, and B) it takes about as long for the router and modem to power up and get fully connected as it does for computer to go through the normal, non-"Quick EZ whatever" boot, and there's not much point for the computer to blitz through and be ready to go if the Internet isn't there yet.
Anyway, yeah, that's another problem solved, fairly simply.