I moved just the LCD to the second UPS, so now it and my main computer are alone on it, and the draw went up from 303 to 346.

Apparently, when boinc is not running, the computer idles at 285w, when boinc runs, it hits 303W/24min. At 346w I get 20 min. Still acceptable!

And that means that this Dell FP2005 20" LCD screen uses about 43w