Will my system works smoothly

[harisbashir82]

Core i5 2500 processor
ASUS P8H61-M LE/CSM R2.0 LGA 1155 Intel H61 Micro ATX Intel Motherboard
12GB ram
400watts psu
Gtx 660
plz tell me that these components will work smoothly?

 

[yo.edy.4ever]

Do you have this PC already or you want to buy a new PC ?

 

[harisbashir82]

No I have to buy