There is a very good explanation about capacitor aging on the website, but it boils down to this:
Every PSU, like everything you use, will show sings of wear and tear in due course. Like the tires on your car, your washing machine, your TV, everything that you use will degrade over time and ultimately break down and will need a replacement. Same with a PSU. The things that cause a PSU to break down are the capacitors and these lose their capacity just as surely as the battery in your car. If you have a 4 year old battery in your car and one day it does not start, you can know it is the battery. To avoid problems with the PSU failing in the intended life you envisage when building a new computer, which may be 3 to 4 years, you have to calculate loss of power in the intended life span, and that is what capacitor aging is about. If you read the notes at the bottom of the page you will see what it means, depending on whether you use your system 24/7 or only for a few hours per day.
You did not use the Pro version, which I highly recommend, because you don't have the required amperage per rail now, which may decide your choice of PSU. Additionally, you used 1.45V for the 930 overclocked, which is pretty high @ 3.8 GHz, so from the looks of it you may get by with a 1000 W PSU, but I noticed you did include a 56K modem? Your settings were at 90% CPU load if I read the screenshot correctly. What does it say when using 100% CPU load?
To be safe, I would look at a 1200 W PSU. For a UPS, look at a model that delivers at least 1.5 kVA, but possibly 2.2 kVA.
I missed those explanations at the bottom. Yes I know about the modem
I'm in the Pro version now.
With 100% CPU load
Overclock CPU speed still at 3800, lowered voltage to 1.20
Also have system load at 100%
Min PSU: 924
Minimum UPS rating: 1391 VA
Recommended UPS rating: ** 1750 VA
@ 3.8 GHz, you voltage may be around 1.25 - 1.275 V. Anyway it looks like your minimum PSU needs to be at least 1,000 W and the UPS at least 1.5 kVA. If you have relatively unreliable electricity supply (meaning over 2 failures per year) you may opt for the 2.2 kVA version UPS, such as this one: APC Smart-UPS 2200VA USB & Serial 230V.