My system currently is a i5-3570k and a GTX 1650 OC (both of them used), the question is should I go for a used psu to save costs or a new one to make sure nothing goes wrong? Currently thinking about pulling the trigger on a Coolermaster MWE 450 for around 3k on amazon
Depends on the seller, you can get by old psu if its in good condition. But buy a good one from good brand. You can buy jp capacitor psu second hand and not worry, those lasts really long...
Most of the cases buying a new one is better. Make sure to test the psu if you are gonna buy a used one tho. Seen a lot of mates getting a faulty one, initially it ran good but would soon stop working.