overpressure inside the case also helps.
and i would have no place left on my desk if i would put my PC on it
Overpressure is helps keeping out dust a great deal, depending on how your PC components are cooled, it may be suboptimal in terms of cooling performance.
For an article published at a place called "Techspot", that piece is worthy of a double face palm.
There so many things mangled, I don't even know where to begin. So I won't.
Over-pressure - from intake fan and filter - is fine, but can be difficult to balance correctly if the aim is a silent PC.
One of the things that article ignores, is that CPU, ram, PSU, chipset and videocard are cooled in separate air paths. It basically considers only CPU and (for some reason) drives.
Under-pressure - from evacuating fans (including videocard and PSU) - is much easier and straightforward. ATX cases, ATX mainboards, CPU-coolers, videocards, are basically built for such arraignment, so mostly takes care of itself.
The problem, and mistake people make, is of having too big pressure differential. The main problem is that the large cooling fans in modern, silent PSUs have a very low pressure differential. So it doesn't take many other evacuation fans to lower the inside pressure so much that it radically affects the air stream through the PSU. The PSU will not get enough cooling and it's lifespan and function will be compromised (this is particularly prone to be the case if you use a cheap case or old case). The symptoms is that your case will get slightly,.. tepid-ish, as the PSU is now cooling itself only through the contact with the case. A healthy PC should have a completely cool case. Another thing that happens is that your drives suddenly need cooling, or more cooling. Normally, the contact with the case should be able to cool modern drives sufficiently, together with the intake air exchange that should come from the front.
The solution is to have enough, and large enough, openings for intake air (and as I said, I typically only remove an empty drive bay coverplate; alternatively, one can drill a lot of holes in them, if one thinks that looks better), and not too many or too strong evacuation fans. An intake fan will also help. Just get the right capacity. If you use intake fans, you should aim for a very slight over-pressure. You can check this with cigarette smoke, someplace where you have holes in the case but no fan. The smoke should not be sucked in, but rather drift away from clean air.
For an article published at a place called "Techspot", that piece is worthy of a double face palm.
There so many things mangled, I don't even know where to begin. So I won't.
*snip*
I'd rather prefer if you did voice your concerns. I had skimped avor most of it because I had primarily intended it to showcase the positive vs negative pressure argument, so if there's any errors, it would be nice if you could tell me. I'm not quite an expert yet.
As for the too big pressure differential, it should go without saying that you don't use a jet engine intake to vacate the hot air whilst only fanning in the cool air manually so to speak ...
One thing laptops do not note is how well it can vent out heat. Because of this, you should expect around 20-50% less performance under some stress.
I don't understand, 20-50% less performance than what?
I don't understand, 20-50% less performance than what?
Than those hardwares with similar names on PCs motherboards. Mainly Graphic Card.
Technically it will be fine for me playing Fallout3/New Vegas on my (Core i3 - 1GB 7650) laptop. But I haven't tried it yet.
I really hate it when my laptop becomes hot. It's only good if you live in Alaska or somewhere similar!
Than those hardwares with similar names on PCs motherboards. Mainly Graphic Card.
The model numbers on mobile cards do not correspond this way to desktop GPU model numbers. For example, the 960M is not a lower clocked version of the desktop 960 card, rather it is a rebadge of the 860M with higher clocks (GM107 architecture, used in desktop GTX 750 and 750Ti cards). The desktop 960 utilizes a different architecture, GM206, while 965M, 970M, 980M, as well as desktop 970 and 980 all use GM204.
So when you are saying the mobile graphics card performance is 20-50% less under stress, I don't quite follow, 20% less than what, exactly? Less than performance when there is no stress, when the GPU is not under load?
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