I'm loading Peppermint 8 Linux onto it, and it asks if I want to test the memory, so I thought why not. It is taking a long time to complete.
You can always stop the memory test at any time.
As noted in your other Topic, you may want to simply replace the CR2032 battery, twin pack of the Energizer brand available at Walmart for $5 on one of the battery stands near checkout lanes. It's best to keep a spare handy, the unused one will last a few years stored. This alone will reset the CMOS w/out needing to bother with jumper pins.
It's not uncommon for these batteries to show age after 7-8 years of normal usage, some gets lucky & makes it past the 10-12 year mark, may be dependent on brand of battery. Most OEM's installs the lowest cost one possible, have never received a computer of any type with a known major battery brand installed.
When these low cost batteries begins to fail, if the computer is in use, the most common sign being the time & settings not holding between reboots, especially when unplugged for any length of time. Being it's likely close to a decade old (if not already replaced), it's time to do so. It'll save a lot of troubleshooting steps, once it's losing life, it'll seem like problems at every reboot. Even printers has a CMOS battery installed, seen one in my last model of the same type & retrieved, was in a pinch & reused in a PC that belonged to someone else (she wanted to hold down costs & battery was around 3 years old). Otherwise these also wouldn't hold settings when moved from one place to another when unplugged.
Today, I keep no less than an unopened 4 pack on hand, as I work on computers of others, if more than 5 years old, will replace to avoid issues later, an extra I perform for most of my customers at no added charge.