Your PSU
is an expensive paper weight. You're going to need a better quality PSU to protect the investments inside that computer chassis.
Speaking of which, you could look into a GTX1050 Ti 4GB versions but you will need to look for ones that don't have the PCI-E connectors. MSI, EVGA, Gigabyte, Asus and Zotac make a few of them without the need of a PCIe connector.