I just have the fans that came with it.
I opened the case yesterday, and the fan on the the mobo (the core or whatever it is in english), was pretty dusty, so i cleaned it a bit. im on vacation now, on my laptop, so i cant do much. Also the gfx card and the sound card are prety close together, maybe moving them apart will help?
Anyways, ill check with the dell support oche i get home, next weekend or so.
Also the cables just hang around, when the case is lying sideways, which u need to when opening a dell case, the calbes touch the mobo. I dont know about when it is standing, but it might still. Damn i go so scared when opening the case ( i did exactly how it said in the manual) and the cables conecting to the gfx card pulled on the card, but it still works.
Yes i think it is the prescott build, how could i check?
About the "Stock" fans, i have no idea, anyway to check. Im no wiz at this, but its a huhge metal thing, with a fan on the side pointing to th outside. Also i can see some heatpipes (or whatever theyre called) under that metal thing.
It my sound like total garbage but, maybe someone will understand...