Computer cooling/placing in a room. Temp differences.

[Oldschool297]

I have noticed when i had my Asrock Z590 oc formula in another room on the floor, the cpu with 30 degress in the room went to 27-30 and the motherboard to 35. When i had it on a table in another room the cpu wents to 33-35 and the motherboard to 37-41. I had a temp reader on the computer and it was not so big difference on the floor against on a table. Does it blow more cold air you lower you get? I even had it worse placed when it was on the floor, the heater on the wall was 1 meter away, it did get cooler then on a table in another room with the same temp. I even tried to reverse it on the table so the back blowing was free and not 20cm against the wall. But the temps was the same.

 

[Vya Domus]

It shouldn't make that much of a difference, the air is colder on the floor.

 

[Vayra86]

Heat rises, it doesn't really travel horizontally unless airflow forces it to.
Your case gets lower ambient intake airflow on the floor, so it can use that air to cool things down more.

 

[joemama]

The temperature difference is too small and could be easily affected by any programs running on the CPU.
I would run a torture test to confirm the temperature difference first.

 

[Bill_Bright]

Does it blow more cold air you lower you get?

No.

It is simple physics. Heat rises. Unless, as Vayra86 noted, there is some outside source moving the air around (for example, a desk or ceiling fan or HVAC vent), or some other influence (such as the sun), the air at the lowest point in a room will always be cooler.

In any case, I would not even worry about running any sort of stress tests. Your worse case scenario of 41°C is nice and cool with lots of headroom to spare.

That said, it is always wise to watch the temps. The only thing I would recommend if for you to periodically inspect the interior of your case for heat-trapping dust build up, and clean accordingly. I typically say to start inspections at once a month, then you can adjust as needed. For example, if your case has no removable, washable air filters, and you have pets and other rug rats running around stirring up dust, and your windows are open for hours and hours, you may need to clean once a month. If you have no pets, no kids, a filtered case and your home is environmentally controlled (doors and windows closed most of the time), you may not need to clean the interior but once a year, if that.

 

[Oldschool297]

Yes that makes sence. I tried on the floor and there was 3-6 degress differences. I have a SSD and a M.2 card, the M.2 card use to stay around 32-35 and the ssd 40 without work. I have 2 tops fans, 3 front fans, and one back fan, all 120mm. I thought the ssd should become cooler.

 

[Bill_Bright]

Again, your temps are fine. However, your fan configuration may be counterproductive.

You want a good "flow" of air through the case - typically front to back or bottom to top. And you typically want "slight" positive (over) pressure. This means you want slightly more air being drawn in than being exhausted out. This causes all the intake air to be pushed (or pulled) though designated, and hopefully filtered vents.

If there is negative (under) pressure, that creates a bit of a vacuum inside the case. That is not good because that vacuum results in air (and all the dust it carries) to be pulled through all the cracks, crevices, and unused ports (USB, card slots, graphics connector ports, etc.). Not only does that allow dust inside, it contaminates all those ports.

Too much pressure (positive or negative) actually hinders the desired flow of air. Pockets of stagnant air can develop and where that happens, heat can build up. Not good.

Why the top fans? What direction do they flow? Do you have a radiator there? If not, you probably don't need them.

Does your PSU have its own air intake vent? Some bottom mount PSUs do. Most top mount PSUs do not. If it does have its own vent, it is NOT significantly helping air flow. If it gets its air from inside the computer case, it may be helping exhaust a little heat, but likely not much - not with 3 fans in front pulling LOTS of air in.