About computer installation

krystal-zh · May 10, 2019

Hello, everyone! I am a new member from China. I have been trying to assemble my first computer recently.
But I was a little confused when installing the power supply. I don't know whether it is correct to install the power supply in this way. Some people said that I used the wrong screw, and the model of the chassis is coolermaster mastercas pro5

Bubbles_TPB · May 10, 2019

Is the fan pointing up or down? If theres a vent under your PSU, Its meant to have the PSU fan pointing that way.

May 11, 2019

On 5/10/2019 at 9:49 AM, krystal-zh said:

Hello, everyone! I am a new member from China. I have been trying to assemble my first computer recently.

But I was a little confused when installing the power supply. I don't know whether it is correct to install the power supply in this way. Some people said that I used the wrong screw, and the model of the chassis is coolermaster mastercas pro5

The case has screw holes for two orientations. That's why some screw holes are used and others are not. This is normal. This allows users to point the PSU fan either upwards or downwards. There really is no "correct orientation" most of the time. The PSU doesn't care. But as @LukeTheCoder05 points out, if there's a vent at the bottom of the case for a PSU fan to suck air through, then you might want to mount the PSU with the fan facing down.