Update: thermals testing
I measured thermals for four configurations:
#1: On the bench, 4765T CPU (35w) + Radeon 6570 dGPU (60w)
idle temps: CPU=35, GPU=32, SSD=24
stress test: CPU=61, GPU=69, SSD=32
idle power=35w, load power=95w
#2: inside the case, 4765T CPU (35w)
idle temps: CPU=40, SSD=29
stress test: CPU=75, SSD=43
idle power=25w, load power=70w
#3: inside the case, 4765T CPU (35w) + Radeon 6570 dGPU (60w) (horizontal)
idle temps: CPU=46, GPU=45, SSD=38
stress test: CPU=60, GPU=85, SSD=43
idle power=35w, load power=95w
#4: inside the case, 4765T CPU (35w) + Radeon 6570 dGPU (60w)
(vertical)
idle temps: CPU=40, GPU=37, SSD=28
stress test: CPU=60, GPU=82, SSD=43
idle power=35w, load power=95w
Some thoughts...
1) It is very interesting to notice the max temp of the CPU when HD4600 is activated: 75 degrees! When the HD4600 isn't used (#3) the max temp is only 60 degrees despite the fact that the CPU is next to a burning hot GPU and of course the whole case interior is also very hot.
2) The max power draw figures are also very interesting: although 4765T is a 35w part, it seems that this is valid only for the CPU part, otherwise I can't explain why the total draw during the stress test is 70w! When the dGPU is used then we achieve a more easily explainable 35w + 60w = 95w total draw.
3) It is obvious that no part can run at 85 degrees in the long term. So now there are two ways to go: either I completely skip the GPU, or I try to make a custom cooling solution, ventilating the hot air towards a rear exhaust, out of the case, like guru suggested earlier. Now if only I knew how to do that...
4) While in idle the system is almost inaudible (in any configuration), as you may have guessed with these temp figures it is quite loud.
5) There is another workaround, albeit with a major compromise in my initial design plans: I can mount two 60-80mm fans in the front of the case, pushing all hot air to the rear but this means that I forget mounting the PSU inside the case and use the system with an external brick.
