Low-power power supply for the motherboard, which one to choose?

Question

Power Supply

Hello, I want to build myself a home NAS, for home photos and videos, and I roughly picked up some iron for myself, but I would not want it to eat a lot of electricity, tell me please, if I put a PSU on 450W, for example, will it consume so much or is it better to look for smaller blocks?

My config: micro-atx board with either a built-in processor or a celeron-level processor, 2 4GB RAM sticks, 1 M2 SSD (or a regular flash drive for the system) and 2 4TB hard drives at 7200 rpm, for software RAID1.

The system, as I understand it, should eat very little, less than 100W, and a PSU less than 400W is a very rare thing on sale, I saw it at 350W, but it’s generally kind of something ancient. Please advise what to put for food

Answer 1

450 is the maximum power. How much the NAS will consume - almost the same amount will be consumed from the network (plus a dozen watts for the needs and efficiency of the PSU itself).

Answer 2

Pay attention to the PSU from slim cases. There they are just at a power of about 100 ... 150 watts. But such PSUs separately are very rare, they fall into my hands only together with old slim-computers. You can try to get them through acquaintances with service workers.

Answer 3

Set a reliable one, if you use it for storage, do not save .., any unit consumes absolutely nothing electricity ..

Answer 4

Intel is starting to promote 12v mono power, let's go for a walk there.