I can't use Sensorview, unfortunately - I've been unable to get anywhere at all with the computer, even to Windows, without it locking up on me. But the other day, after having left the machine off for three days or so, I was able to make it to the BIOS temp readings before it froze (another, probably important, detail that I forgot to mention: the longer the comp's unplugged before I power up again, the longer I can use it before the monitor locks). Nothing was out of the ordinary, hovering around 50-55C.
Also,
http://www.ultraproducts.com/product...&productID=369 has all the specs of my PSU.