CPU ticking along at 43c ...
Yeah, mine is running at about that... 44c - 46c. However, it's Winter here at present and I wouldn't expect those sorts of temps in 6 months time... especially not if we get more of those 45c plus heatwaves. Fortunately, my landlord has agreed to put in roof insulation and install an extra air-con unit to hook up to the split system bizzo outside... arrives tomorrow morning.
The existing unit is installed in the middle of the house and didn't cool my study area at all... and without roof insulation it was getting up into the 50c's on particularly hot days with no breeze to speak of, which is why I bought myself a portable air-con unit for the study.
I've seen people putting towers in desk cases so tight, they warmed up to failure in weeks.
Yup, I've seen that as well... folks putting rigs into spaces with barely half an inch to spare either side, then they wonder why they overheat and shut down/or worse. Shoot, I even saw a bloke once who built his off-the-wall desk around his PC to give it that made-to-order, built-in look, leaving NO space either side, just a door on the inner side of the unit to access the cables, etc.
Told him it wouldn't last in the 30c -35c plus Summer temps we get here in Queensland.... less than 6 months later he was bringing to me to fix Yeah, right, like I'm an expert!! Obviously it was fried, but at that time I hadn't even taken off the side of a tower, much less fiddled around with the stuff inside... guess he mistook having some common sense for some kind of expertise.
My desk leaves for a clear 2 inches either side of my rig, and on very hot days (prior to the portable air-con) I had a fan running behind it sucking cooler air in from the open window, and another oscillating in front for me and the rig both... that was on top of the 3 case fans and the extra I added to have 2 blowing and 2 acting as exhaust fans.