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5 个月前Case usually have fans preinstalled that should be fine. Just pay attention to the direction, have tham all blow air front to back. There is usually an arrow indicating which way it moves air.
Run a benchmark after buiding the PC and check temperatures.
He means there is deliberate perspective making the big truck even bigger in the photo.
Notice how the whels of the small SUV are the same size. And the front tire on the big truck is like 20% bigger than the rear.