Cheap minicomputer stabilizer?

Question

Power Supply

A new Chinese minicomputer (nettop) sometimes turns off. There is a suspicion that the apartment has a short voltage drop when the refrigerator is turned on (but the shutdown does not occur so often). Looked at his power supply - 300 watts.
I began to look for uninterruptibles, they write that Smart-APS is needed to quickly switch. The price is more than 30 thousand. I suspect that a large capacitor would be enough, because. voltage drops for a very short time.
So, what is an inexpensive solution: a new PSU (more powerful), a stabilizer with protection against short drawdowns, a UPS (high-speed)?
I'm afraid I'll buy a cheap UPS, but the problem remains.

Addendum: even the PSU does not have a very good contact, where the 220 connector enters, it’s a little worth moving and the nettop is also turned off.

addition: I see that the power is now about 100 W (the video card is not yet used, then it will be used for parallel computing)

Answer 1

back in the 200s, computers came with atx power supplies with huge capacitors to survive a 1 second drawdown reboot or turn off, all the old ones continue to work
on prices, it seems to me that you are overdoing it, even with the current situation, a stabilizer for a mini computer will cost about 50 bucks (well, 100), especially if you look directly from the Chinese, and those that are 30t.r. - this is for the whole apartment or powerful consumers
, and the usual cheap uninterruptible power supply ups protects the computer from a large number of problems (but not all, for example, a voltage drop or frequency problems, or something else)
ps whatever you do, the device itself, which will initially take energy from the network, must be smart enough not to burn out from all types of interference, you can only make protection against a limited list of them cheap ... yes, after, when you have a constant 12v- 24v-48v, you can buy very cheap dc-dc converters from the Chinese, a ready-made one with an atx connector now costs about 2t.r. charge controller and not just a constant source, as this is inefficient).

Answer 2

Change the plug to the power supply that you have and use a shorter and more decent extension cord. If it's plugged into a wall outlet, change the outlet. Plug into another outlet. Then stabilizers, UPS, power supplies ...