PSU Requirements [HELP!]

SlenderMRS

Honorable
Aug 31, 2013
24
0
10,510
Hey guys,
I was wondering if this system:
AMD Athlon 2 x4 750
Gigabyte Radeon R7 260X 1GB GDDR5
Kingston HyperX Blu 1x4GB 1600MHz CL9
500GB Toshiba HDD
Biostar A55ML2

Will go with this PSU:
Sirtec High Power Eco II,ATX 2.3,450W

P.S:One more question,as well as i can't go further with the budget,is that motherboard good enough? I want to add that i don't plan to overclock or stress the motherboard in any means,i just want the RIG to work.
Thank you guys.