Your motherboard size, called its form factor, decides which cases you can pick. Choose a board in the Evetech PC Builder and only cases that fit that size show up. A small board fits many cases, but a large one needs a roomier shell.
Your motherboard form factor is simply its size and mounting layout, and it decides which cases you can pick. Choose a board in the Evetech PC Builder and only cases that fit that size show up. A small board fits into many cases, while a large one needs a roomier shell.
The form factor of your motherboard, whether ATX, micro-ATX or the small mini-ITX, sets which cases can hold it. After you choose a board in the Evetech PC Builder, cases that cannot take that size are hidden. Smaller boards usually fit in bigger cases, but a big board never fits a small one.
Most consumer boards come in three standard sizes, and the numbers help you picture them:
The mounting holes are standardised, which is why a case built for ATX can usually also take the two smaller sizes. A case designed for mini-ITX, on the other hand, has no room for the larger boards at all.
Choose a motherboard in the Evetech PC Builder and the case list narrows to shells that can hold its form factor. Pick an ATX board and compact cases drop out. Pick a mini-ITX board and the list opens up, because nearly any case that supports a smaller board can take it.
A full ATX board has 7 slots for add-in cards to play with, so it suits anyone adding capture cards or extra storage, while mini-ITX offers just 1 slot and trades expansion for a footprint small enough for a bookshelf. Cases advertise the sizes they accept, often as "ATX, micro-ATX and mini-ITX" on one line.
That is the whole mechanism, and it is why it helps to choose the board before the case. If you start from the shell, you might fall in love with a style and then discover the board you wanted is too large. If you start from the board, every case on screen already works with it.
Browse the motherboard range to compare sizes first, then check the computer case range knowing which ones the builder will let through.
A micro-ATX board in a mid tower works perfectly, since the mounting holes line up with 244 mm of the larger layout. The only cost is spare space, which can look empty and may leave an unused row of mounting holes. Some builders like that room for cable routing and airflow.
A full-size board in a compact case simply will not go in. No amount of effort changes the physical dimensions, which is why the builder removes those cases from view instead of letting you discover the problem later.
A mid tower commonly holds standard and smaller boards, but check the case details against the board you picked to be sure. Case makers describe the boards each model supports on its page.
People assume a bigger case runs cooler. Often there is more airflow room, but fan placement, mesh panels and the number of intake and exhaust fans matter more than size alone. A cramped small case with good airflow can beat a large one with a solid front panel. Even a modest shell with 2 or 3 fans in the right places keeps a mid-range build comfortable, whereas a sealed case with 5 fans in the wrong places will not.
Size mainly sets what fits: tall air coolers, long graphics cards and extra drives. If you plan any of those, favour a case with some room to spare. The builder's later Looks and Cooling step covers fans once the case is chosen, so cooling can be handled after the size question is settled.
If you are torn, decide on how much you want to add later. Plan on 3 or more extra drives, a capture card or a big air cooler, and an ATX board in a mid tower gives you the room. Want a tidy desk build in a small Pretoria flat or a student room, and micro-ATX or mini-ITX in a compact case does the job with a smaller footprint, usually under 40 cm tall.
Keep an eye on graphics card length as well, because the case filter works on the board and not on the card. A compact shell may limit you to a card around 250 mm long, while a mid tower often allows 350 mm or more. Check that number on the card's page before you commit.
It is the standard size and mounting layout of a board, such as ATX or a smaller type. The case must be built to hold that size.
Usually yes, since many larger cases also take smaller boards. It can leave spare room, but the reverse never works.
No. A full-size board will not physically fit a compact case, so the builder leaves those cases out of the list.
The builder hides every case that cannot hold your board's form factor, so only workable cases remain.
Often there is more airflow room, but fan placement matters more than size alone.
A mid tower commonly holds standard and smaller boards. Check the case details against your board to be sure.
The builder filters cases by board size, so choosing the board first keeps the case list short and relevant.
Know your board size yet? Choose a motherboard in the PC Builder and see only the cases that fit it. Then compare mid towers and compact shells side by side.
It is the standard size and mounting layout of a board, such as ATX or a smaller type. The case must be built to hold that size.
Usually yes, since many larger cases also take smaller boards. It can leave spare room, but the reverse never works.
No. A full-size board will not physically fit a compact case, so the builder leaves those cases out of the list.
The builder hides every case that cannot hold your board's form factor, so only workable cases remain.
Often there is more airflow room, but fan placement matters more than size alone.
A mid tower commonly holds standard and smaller boards. Check the case details against your board to be sure.
The builder filters cases by board size, so choosing the board first keeps the case list short and relevant.
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