@Zac67,
thanks for the detailed info. On my A4000 desktops and on my A4000T all of the caps look to be in good condition. The A4000T was manufactured 1997 but is not turned on that much - the board looks in "new" condition...so I hope it lasts alot longer

The A4000's have been used more but the caps still look good...knock on wood...hopefully they last a few more years

The room temperature in my apartment is normally around 19-26C depending on the season. Right now because we are getting closer to winter (first snow fall today!) it's around 20C...