350watt

Hi, the pc shuts down or won't be on unless I move these wires with my hand. This issue came after I had to take it to a shop for a microphone issue. How to fix this constant shut down issue, because every time BIOS gets reset when those wires move. A Open 350watt Model no. Z350-12AAB Msi G41m-P25

A model of antec power supply named 'Antec Atom 350 Watt' is available at all local markets in my region. I already planned to build a budget pc without gpu and I want to use this power supply but I dont find this model on antech official site. Can you ensure me its good enough?