Power supply suggestion

Dipanjan 66o

Honorable
Jul 26, 2013
16
0
10,510
Hey guys
I have just upgraded my rig and running systems are
Intel db75en, 10 gb ram ddr3
Ci5 3330, zotac gtx 650ti boost
But the prob is I have a 400 watt psu of cooler master
And I am not going to upgrade anything for about 1 month
So my question is whether I'll be able to play high graphics games with the help of this psu without any prob for a single month?
Just for a month I'm going to play with a 4000 watt but I'll upgrade to a 500 watt after some 30 days...
Will it create any problems? Or I should upgrade immediately without any delaying?
Pls help...
And thanks in advance