[科技]Built an ultra-low profile PC with Zero Noise(0db) – Part 2: Power Supply Unit

Most of the noise from PC is caused by the CPU-Fan, and the internal ventilation fan inside the power supply unit(PSU).
The Intel D510mo has already taken care of the CPU-Fan, because it has none. This is a passive cooling CPU, which has only a heatsink.

The fan noise comes from PSU is more tricky issue. Due to the small form factor of the casing, the standard size desktop PSU just won’t fit into the casing.
And to make the machine to be totally silent (Zero Noise 0db), I ordered the picoPSU online.

The picoPSU is a specially built PSU, which takes 12V DC input to supply the power for the motherboard. Combine the picoPSU with a battery brick(which convert the AC 240V to 12V DC), you get a totally silent PSU.