There are really very few cases that over the years have been designed “inverted”, and even more with a side window (in fact, I don’t remember any except the Corsair Carbide Clear 600C). For some reason, almost all PC users place the box on the right of the monitor and not on the left, but as strange as it sounds, that’s not the reason the boxes have the side window on the left.
The motherboard, guilty of the location of the lateral advantage in PC cases
As you read, the “flaw” that almost all cases have with the side window on the left is because of the way PC motherboards are designed. Take a look, like the Corsair Carbide Clear 600C that we mentioned previously, as for the inverted design, it is “forced” that the box does not have cooling from the top because it is necessary to install, strength, diet. power supply (it could be installed below, yes, but this would force the box to be very high to leave enough distance with the plate and to be able to channel the cables, etc.).
It would also force the liquid-cooled radiators to go to the bottom of the box, which is not the most optimal for good airflow (nor for dust). On the other hand, the rear fan is located in the lower zone of the box, and if we take into account that the hot air tends to rise and not to fall, it does not promote cooling, because it will not be able to effectively remove the heat generated by the graphics card.
In short, you can still have a good box with good capacity and excellent cooling, but of course given the arrangement of the base plates it is not the most optimal and for this reason this type of inverted boxes is hardly manufactured. .
And why is the layout of the motherboards not changed?
It would be quite complicated. The motherboard is by far the most complicated part of a PC, with many different chips and connections that engineers have to put together like a jigsaw puzzle, plus some components have to be closer to each other to reduce damage. latencies (such as RAMs or the primary PCIe socket of the processor socket).
You could say that at present, although there is no standard, an “agreement” has been made between the manufacturers and they are making them all with the same arrangement, because that is the best way. to universalize the PC components in a certain way so that any motherboard can be installed in any box (with size restrictions, which is standardized), that any heat sink can be installed in any box (with height limitation), etc.
For example, imagine that now a manufacturer decided to change the layout of the output ports on the motherboard and instead of being on the left side it was on the right. This would require you to install the motherboard rotated 180 degrees (“inverted”) and the heatsink would no longer be oriented the same, the graphics card would be above the socket and no longer fit into the PCI sockets of the PC cases, etc.
In short, PC cases have become universal in order to be able to install, with the restrictions that we all know, any type of PC inside regardless of the manufacturer. And, since the manufacturers have also universalized the layout of the motherboards, there is no choice but to place the side glass on the left side. Yes, there are reverse boxes, but as we explained at the beginning, there are very few and their release to the market has been rather rare, so in most cases they ended up being discontinued and forgotten.