Silverstone SG 13 case which I recently moved my whole PC into, does indeed support ATX power supply units (PSUs). In fact I currently have an ATX power supply in it. The one that I use is one of the smallest ATX PSUs out there. Being only 140mm long, it should fit just fine in the SG13 as per specifications posted by Silverstone. But in reality, that is not the case.
The following is a photograph of the current state of my PC.
There is hardly any room for the air to circulate inside the case. That is without even the 3.5” bay installed. (I simply place the HDD on the top of the cables, but the HDD will be removed from the PC soon) The lack of space is mostly due to the long cables this power supply comes bundled with. Since it is an ATX PSU, ideally it should go inside a larger case and the cables need to be long enough to reach the components. Inside the SG13, those cables are way too long.
What can I do about the cables?
I can of course spend some time and do a proper cable management job. I didn’t have to do that with previous cases but skipping that in this case is inexcusable.
There is another option too. I can buy the PP05-E short cable kit sold separately by Silverstone. Those cables should fit my PSU just fine because they are compatible with every modular PSU sold by Silverstone. Sadly, they don’t come cheap. JPY 3,000 is a steep price to pay for a set of cables.
How about more room?
But what if I make PSU smaller as well? Wait a second now. Didn’t I tell that the PSU that I use is amongst the smallest ATX PSU’s available in the present market? Yes, I said ATX. You do not have to restrict yourself to ATX PSUs though. There are other form factors that with much smaller foot prints. Two of such popular form factors are SFX and SFX-L form factors.